MaxArrayLength Exception for large data blocks - ASP.NET Discussion Boards

Thank u. but when we use the sql server as a database then we are using the .mdf file from the App_data folder. but at the point of mysql is it possible?

dinusahu wrote:
but when we use the sql server as a database then we are using the .mdf file from the App_data folder

I actually think your using Microsoft Access, a file-based-database with the data file stored in App_Data
MySQL is a server-based database, with the data stored in the default MySQL location, and uses a much different file format.

dinusahu wrote:
but at the point of mysql is it possible?

I will plagiarize this persons thoughts here, on the difference between the 2 server types, so you can come up with your own answer, then choose you own path.

What is the difference between a file-based database and a server-based database

First of all databases are stored in files! So a simplified answer would be there is no difference.

But when we refer to file-based databases we mean databases that we interact with/update directly (via an SQL abstraction offered by the JDBC driver) but in essence we just read/write to a file directly. Example would be SQLite

When we talk about server based databases we mean that there is a server process running (bind to some port), that accepts requests (i.e. SQL queries). Your process connects to the server and sends queries to the server which itself is responsible to update the database files. Example is MS-SQL Server.

The server based database could be anywhere (could be accessed via network) while the file-based database must be in a file in the local file-system.

Which one to choose depends on your needs.

Credit goes to the author below
http://stackoverflow.com/questions/10564073/what-is-the-difference-between-a-file-based-database-and-a-server-based-database[^]

MySQL is a server based database, and cannot be used as a file in App_Data.
I refer to MySQL because that's what your first question refereed to.

MySQL Tutorial
http://www.elated.com/articles/mysql-for-absolute-beginners/[^]

Hi folks,

I'm tasked to redesign an existing web app @ www.montgomerycountymd.gov/dlcsearch/[^]

This web app makes heavy used of JQuery.

If you go to this web app and expand any item, it displays the item image and some buttons, is this possible if I plan to use a datagrid control or should I generate the table and rows manually?

Please advise.

PS. I have to create a mobile version for this app too, so if you have some design considerations when creating the desktop version so it can be reused for the mobile version, please advise as well.

Thanks,
...Alex

how to use asp.net select query function in javasxript and how to pass the prompt value of javascript in asp.net

You'll need to be more clear.

There are only 10 types of people in the world, those who understand binary and those who don't.

Q.1 what is a constructor chaining ?
Q.2 what is a Ispostback in ASP.Net
Q.3 what is a catching in asp

All have answers on Google. Exception for #3 which should be caching and not catching (probably.) If you get stuck on understanding anything specific please let us know.

There are only 10 types of people in the world, those who understand binary and those who don't.

This question is a re-post because I could not find it under 'My Questions' for the account in my name, and wasn't sure if it ended up in the ASP.NET forum. Administrator, please feel free to delete the earlier posting and this comment.

Hi Everyone,

I cannot get this message to go away:

"An Exception occured: The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter http://tempuri.org/:deviceInfo. The InnerException message was 'There was an error deserializing the object of type LiveControl.ImageDataResponse. The maximum array length quota (16384) has been exceeded while reading XML data. This quota may be increased by changing the MaxArrayLength property on the XmlDictionaryReaderQuotas object used when creating the XML reader. Line 1, position 24868.'. Please see InnerException for more details."

I've tried dozens of possible solutions to the problem of moving large blocks of data from a Winforms client to a WCF server, to no avail. I've Googled until I'm bleary eyed. Still no solution to this message. The MaxArrayLength in app.config is 2147483647. Here is the app.config file:

XML

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <sectionGroup name="userSettings" type="System.Configuration.UserSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
      <section name="LiveControl.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false" />
    </sectionGroup>
    <sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
      <section name="LiveControl.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
    </sectionGroup>
  </configSections>
  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0,Profile=Client" />
  </startup>
  <system.serviceModel>
    <bindings>
      <wsDualHttpBinding>
        <binding name="WSDualHttpBinding_IMyMessage" closeTimeout="00:01:00"
          openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
          bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard"
          maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647"
          messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true">
          <readerQuotas maxDepth="4194304" maxStringContentLength="2147483647"
            maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
          <reliableSession ordered="true" inactivityTimeout="00:10:00" />
          <security mode="Message">
            <message clientCredentialType="Windows" negotiateServiceCredential="true"
              algorithmSuite="Default" />
          </security>
        </binding>
        <binding name="WSDualHttpBinding_ILiveCtrlService" closeTimeout="00:01:00"
          openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
          bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard"
          maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647"
          messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true">
          <readerQuotas maxDepth="4194304" maxStringContentLength="8192"
            maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
          <reliableSession ordered="true" inactivityTimeout="00:10:00" />
          <security mode="Message">
            <message clientCredentialType="Windows" negotiateServiceCredential="true"
              algorithmSuite="Default" />
          </security>
        </binding>
        <binding name="WSDualHttpBinding_ILiveCtrlEvents" />
        <binding name="WSDualHttpBinding_ILiveCtrlService1" />
        <binding name="WSDualHttpBinding_IMyMessage1" />
      </wsDualHttpBinding>
    </bindings>
    <client>
      <endpoint address="http://localhost:53604/LiveCtrlService.svc"
        binding="wsDualHttpBinding" bindingConfiguration="WSDualHttpBinding_ILiveCtrlService"
        contract="ServiceReference.ILiveCtrlService" name="WSDualHttpBinding_ILiveCtrlService">
        <identity>
          <dns value="localhost" />
        </identity>
      </endpoint>
      <endpoint address="http://localhost:53604/LiveCtrlService.svc"
        binding="wsDualHttpBinding" bindingConfiguration="WSDualHttpBinding_IMyMessage"
        contract="ServiceReference.IMyMessage" name="WSDualHttpBinding_IMyMessage">
        <identity>
          <dns value="localhost" />
        </identity>
      </endpoint>
      <endpoint address="http://localhost:53604/LiveCtrlService.svc"
        binding="wsDualHttpBinding" bindingConfiguration="WSDualHttpBinding_ILiveCtrlService1"
        contract="LiveControlService.ILiveCtrlService" name="WSDualHttpBinding_ILiveCtrlService1">
        <identity>
          <dns value="localhost" />
        </identity>
      </endpoint>
      <endpoint address="http://localhost:53604/LiveCtrlService.svc"
        binding="wsDualHttpBinding" bindingConfiguration="WSDualHttpBinding_IMyMessage1"
        contract="LiveControlService.IMyMessage" name="WSDualHttpBinding_IMyMessage1">
        <identity>
          <dns value="localhost" />
        </identity>
      </endpoint>
      <endpoint address="http://localhost:53604/LiveCtrlService.svc"
        binding="wsDualHttpBinding" bindingConfiguration="WSDualHttpBinding_ILiveCtrlEvents"
        contract="LiveControlService.ILiveCtrlEvents" name="WSDualHttpBinding_ILiveCtrlEvents">
        <identity>
          <dns value="localhost" />
        </identity>
      </endpoint>
    </client>
  </system.serviceModel>
  <userSettings>
    <LiveControl.Properties.Settings>
      <setting name="Device_Name" serializeAs="String">
        <value />
      </setting>
      <setting name="Owner_Name" serializeAs="String">
        <value />
      </setting>
    </LiveControl.Properties.Settings>
  </userSettings>
  <applicationSettings>
    <LiveControl.Properties.Settings>
      <setting name="Device_ID" serializeAs="String">
        <value>1add22ed-af20-4ef8-aeb9-caad8fa9ff08</value>
      </setting>
    </LiveControl.Properties.Settings>
  </applicationSettings>
</configuration>

...and the Service interface is this...

C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Web;
using System.Text;
 
// Windows Communication Foundation - WCF

namespace LiveControl
{
    public interface IMyMessageCallback
    {
        [OperationContract(IsOneWay = true)]
        void OnCallback(string message);
    }
 
    [ServiceContract(CallbackContract = typeof(IMyMessageCallback), SessionMode = SessionMode.Required)]
    public interface IMyMessage
    {
        [OperationContract(IsOneWay = true)]
        void MessageToServer(string message);
        // TODO: Add your service operations here
    }
 
    //-----------------------------------------------------------
    interface ILiveCtrlEventsCallback
    {
        [OperationContract(IsOneWay = true)]
        void OnMessageReceived(string message);
    }
 
    //-----------------------------------------------------------
    [ServiceContract(SessionMode = SessionMode.Required,
                     CallbackContract = typeof(ILiveCtrlEventsCallback))]
    interface ILiveCtrlEvents
    {
        [OperationContract(IsOneWay = true)]
        void Subscribe(Guid deviceGuid, string deviceName, string ownerName);
 
        [OperationContract]
        void Unsubscribe(Guid deviceGuid);
 
        [OperationContract(IsOneWay = true)]
        void Connect(Guid deviceGuid);
 
        [OperationContract]
        void Disconnect();
 
    }
 
    //-----------------------------------------------------------
    [ServiceContract]
    public interface ILiveCtrlService
    {
        [OperationContract]
        int GetNextValueSvc(int value);
 
        [OperationContract]
        string GetDataSvc(int value);
 
        [OperationContract]
        CompositeType GetDataUsingDataContractSvc(CompositeType composite);
 
        [OperationContract]
        string GetImageUrlSvc(string slide, int focus, int x1off, int y1off, int width, int height);
 
        [OperationContract]
        string GetPreviewImageUrlSvc(string slide);
 
        [OperationContract]
        FocusCaps GetFocusCapsSvc();
 
        [OperationContract]
        DeviceInfo[] GetDeviceInfoListSvc();
 
        [OperationContract]
        void SetDeviceInfoSvc(DeviceInfo deviceInfo);
 
        [OperationContract]
        ImageDataRequest SendImageDataSvc(ImageDataResponse imageData);
    }
 
    [DataContract]
    public class FocusCaps
    {
        [DataMember]
        public int Min { get; set; }
 
        [DataMember]
        public int Max { get; set; }
        
        [DataMember]
        public int Default { get; set; }
    }
 
    //-----------------------------------------------------------
    [DataContract]
    public class ImageDataResponse
    {
        [DataMember]
        public Guid deviceGuid { get; set; }
 
        [DataMember]
        public bool isChunking { get; set; }
 
        [DataMember]
        public int chunkSize { get; set; }
 
        [DataMember]
        public int chunksTotal { get; set; }
 
        [DataMember]
        public int wholeChunks { get; set; }
 
        [DataMember]
        public int partialChunks { get; set; }
 
        [DataMember]
        public int chunksRemaining { get; set; }
 
        [DataMember]
        public int Size { get; set; }
 
        [DataMember]
        public byte[] Data { get; set; }
    }
 
    //-----------------------------------------------------------
    [DataContract]
    public class ImageDataRequest
    {
        [DataMember]
        public Guid deviceGuid { get; set; }
 
        [DataMember]
        public bool request { get; set; }     // DeviceRequest DataMembers are valid

        [DataMember]
        public string slide { get; set; }
 
        [DataMember]
        public int focus { get; set; }
 
        [DataMember]
        public int x1off { get; set; }
 
        [DataMember]
        public int y1off { get; set; }
 
        [DataMember]
        public int width { get; set; }
 
        [DataMember]
        public int height { get; set; }
    }
 
    //-----------------------------------------------------------
    [DataContract]
    public class DeviceInfo
    {
        [DataMember]
        public Guid device_guid { get; set; }
 
        [DataMember]
        public string device_owner{ get; set; }
 
        [DataMember]
        public string device_name { get; set; }
 
        [DataMember]
        public string user_name { get; set; }
 
        [DataMember]
        public bool online { get; set; }
 
        [DataMember]
        public bool available { get; set; }
 
        public ICommunicationObject comm_obj;
    }
 
    // Use a data contract as illustrated in the sample below to add composite types to service operations.
    [DataContract]
    public class CompositeType
    {
        bool boolValue = true;
        string stringValue = "Hello ";
 
        [DataMember]
        public bool BoolValue
        {
            get { return boolValue; }
            set { boolValue = value; }
        }
 
        [DataMember]
        public string StringValue
        {
            get { return stringValue; }
            set { stringValue = value; }
        }
    }
 
}

My client app is sending ImageDataResponse.Data[1M max] blocks of various sizes of image data to the server:

C#

ImageDataResponse imageData = new ImageDataResponse();

// copy image data to byte array
Bitmap bitmap = new Bitmap(pictureBox2.Image);
imageData.Size = bitmap.Height * bitmap.Width;
imageData.Data = new byte[imageData.Size];

using (var memoryStream = new MemoryStream())
{
	bitmap.Save(memoryStream, ImageFormat.Jpeg);
	imageData.Data = memoryStream.ToArray();
}
imageData.Size = imageData.Data.Count();

ImageDataRequest imgDataReq = new ImageDataRequest();

imgDataReq = m_LiveCtrlService.SendImageDataSvc(imageData);

I'm a beginner and any suggestions that would enable sending large Byte[] arrays to the server would be greatly appreciated. Smile | :)

Thank you in advance.

Please don't post the exact same question, especially as it is immediately above your original. You should also go to http://www.codeproject.com/suggestions.aspx[^] and ask them to delete your duplicate account.

Hi Everyone,

I cannot get this message to go away:

"An Exception occured: The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter http://tempuri.org/:deviceInfo. The InnerException message was 'There was an error deserializing the object of type LiveControl.ImageDataResponse. The maximum array length quota (16384) has been exceeded while reading XML data. This quota may be increased by changing the MaxArrayLength property on the XmlDictionaryReaderQuotas object used when creating the XML reader. Line 1, position 24868.'. Please see InnerException for more details."

I've tried dozens of possible solutions to the problem of moving large blocks of data from a Winforms client to a WCF server, to no avail. I've Googled until I'm bleary eyed. Still no solution to this message. The MaxArrayLength in app.config is 2147483647. Here is the app.config file:

XML

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <sectionGroup name="userSettings" type="System.Configuration.UserSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
      <section name="LiveControl.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false" />
    </sectionGroup>
    <sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
      <section name="LiveControl.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
    </sectionGroup>
  </configSections>
  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0,Profile=Client" />
  </startup>
  <system.serviceModel>
    <bindings>
      <wsDualHttpBinding>
        <binding name="WSDualHttpBinding_IMyMessage" closeTimeout="00:01:00"
          openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
          bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard"
          maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647"
          messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true">
          <readerQuotas maxDepth="4194304" maxStringContentLength="2147483647"
            maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
          <reliableSession ordered="true" inactivityTimeout="00:10:00" />
          <security mode="Message">
            <message clientCredentialType="Windows" negotiateServiceCredential="true"
              algorithmSuite="Default" />
          </security>
        </binding>
        <binding name="WSDualHttpBinding_ILiveCtrlService" closeTimeout="00:01:00"
          openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
          bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard"
          maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647"
          messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true">
          <readerQuotas maxDepth="4194304" maxStringContentLength="8192"
            maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
          <reliableSession ordered="true" inactivityTimeout="00:10:00" />
          <security mode="Message">
            <message clientCredentialType="Windows" negotiateServiceCredential="true"
              algorithmSuite="Default" />
          </security>
        </binding>
        <binding name="WSDualHttpBinding_ILiveCtrlEvents" />
        <binding name="WSDualHttpBinding_ILiveCtrlService1" />
        <binding name="WSDualHttpBinding_IMyMessage1" />
      </wsDualHttpBinding>
    </bindings>
    <client>
      <endpoint address="http://localhost:53604/LiveCtrlService.svc"
        binding="wsDualHttpBinding" bindingConfiguration="WSDualHttpBinding_ILiveCtrlService"
        contract="ServiceReference.ILiveCtrlService" name="WSDualHttpBinding_ILiveCtrlService">
        <identity>
          <dns value="localhost" />
        </identity>
      </endpoint>
      <endpoint address="http://localhost:53604/LiveCtrlService.svc"
        binding="wsDualHttpBinding" bindingConfiguration="WSDualHttpBinding_IMyMessage"
        contract="ServiceReference.IMyMessage" name="WSDualHttpBinding_IMyMessage">
        <identity>
          <dns value="localhost" />
        </identity>
      </endpoint>
      <endpoint address="http://localhost:53604/LiveCtrlService.svc"
        binding="wsDualHttpBinding" bindingConfiguration="WSDualHttpBinding_ILiveCtrlService1"
        contract="LiveControlService.ILiveCtrlService" name="WSDualHttpBinding_ILiveCtrlService1">
        <identity>
          <dns value="localhost" />
        </identity>
      </endpoint>
      <endpoint address="http://localhost:53604/LiveCtrlService.svc"
        binding="wsDualHttpBinding" bindingConfiguration="WSDualHttpBinding_IMyMessage1"
        contract="LiveControlService.IMyMessage" name="WSDualHttpBinding_IMyMessage1">
        <identity>
          <dns value="localhost" />
        </identity>
      </endpoint>
      <endpoint address="http://localhost:53604/LiveCtrlService.svc"
        binding="wsDualHttpBinding" bindingConfiguration="WSDualHttpBinding_ILiveCtrlEvents"
        contract="LiveControlService.ILiveCtrlEvents" name="WSDualHttpBinding_ILiveCtrlEvents">
        <identity>
          <dns value="localhost" />
        </identity>
      </endpoint>
    </client>
  </system.serviceModel>
  <userSettings>
    <LiveControl.Properties.Settings>
      <setting name="Device_Name" serializeAs="String">
        <value />
      </setting>
      <setting name="Owner_Name" serializeAs="String">
        <value />
      </setting>
    </LiveControl.Properties.Settings>
  </userSettings>
  <applicationSettings>
    <LiveControl.Properties.Settings>
      <setting name="Device_ID" serializeAs="String">
        <value>1add22ed-af20-4ef8-aeb9-caad8fa9ff08</value>
      </setting>
    </LiveControl.Properties.Settings>
  </applicationSettings>
</configuration>

...and the Service interface:

C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Web;
using System.Text;

// Windows Communication Foundation - WCF

namespace LiveControl
{
    public interface IMyMessageCallback
    {
        [OperationContract(IsOneWay = true)]
        void OnCallback(string message);
    }

    [ServiceContract(CallbackContract = typeof(IMyMessageCallback), SessionMode = SessionMode.Required)]
    public interface IMyMessage
    {
        [OperationContract(IsOneWay = true)]
        void MessageToServer(string message);
        // TODO: Add your service operations here
    }

    //-----------------------------------------------------------
    interface ILiveCtrlEventsCallback
    {
        [OperationContract(IsOneWay = true)]
        void OnMessageReceived(string message);
    }

    //-----------------------------------------------------------
    [ServiceContract(SessionMode = SessionMode.Required,
                     CallbackContract = typeof(ILiveCtrlEventsCallback))]
    interface ILiveCtrlEvents
    {
        [OperationContract(IsOneWay = true)]
        void Subscribe(Guid deviceGuid, string deviceName, string ownerName);

        [OperationContract]
        void Unsubscribe(Guid deviceGuid);

        [OperationContract(IsOneWay = true)]
        void Connect(Guid deviceGuid);

        [OperationContract]
        void Disconnect();

    }

    //-----------------------------------------------------------
    [ServiceContract]
    public interface ILiveCtrlService
    {
        [OperationContract]
        int GetNextValueSvc(int value);

        [OperationContract]
        string GetDataSvc(int value);

        [OperationContract]
        CompositeType GetDataUsingDataContractSvc(CompositeType composite);

        [OperationContract]
        string GetImageUrlSvc(string slide, int focus, int x1off, int y1off, int width, int height);

        [OperationContract]
        string GetPreviewImageUrlSvc(string slide);

        [OperationContract]
        FocusCaps GetFocusCapsSvc();

        [OperationContract]
        DeviceInfo[] GetDeviceInfoListSvc();

        [OperationContract]
        void SetDeviceInfoSvc(DeviceInfo deviceInfo);

        [OperationContract]
        ImageDataRequest SendImageDataSvc(ImageDataResponse imageData);
    }

    [DataContract]
    public class FocusCaps
    {
        [DataMember]
        public int Min { get; set; }

        [DataMember]
        public int Max { get; set; }
        
        [DataMember]
        public int Default { get; set; }
    }

    //-----------------------------------------------------------
    [DataContract]
    public class ImageDataResponse
    {
        [DataMember]
        public Guid deviceGuid { get; set; }

        [DataMember]
        public bool isChunking { get; set; }

        [DataMember]
        public int chunkSize { get; set; }

        [DataMember]
        public int chunksTotal { get; set; }

        [DataMember]
        public int wholeChunks { get; set; }

        [DataMember]
        public int partialChunks { get; set; }

        [DataMember]
        public int chunksRemaining { get; set; }

        [DataMember]
        public int Size { get; set; }

        [DataMember]
        public byte[] Data { get; set; }
    }

    //-----------------------------------------------------------
    [DataContract]
    public class ImageDataRequest
    {
        [DataMember]
        public Guid deviceGuid { get; set; }

        [DataMember]
        public bool request { get; set; }     // DeviceRequest DataMembers are valid

        [DataMember]
        public string slide { get; set; }

        [DataMember]
        public int focus { get; set; }

        [DataMember]
        public int x1off { get; set; }

        [DataMember]
        public int y1off { get; set; }

        [DataMember]
        public int width { get; set; }

        [DataMember]
        public int height { get; set; }
    }

    //-----------------------------------------------------------
    [DataContract]
    public class DeviceInfo
    {
        [DataMember]
        public Guid device_guid { get; set; }

        [DataMember]
        public string device_owner{ get; set; }

        [DataMember]
        public string device_name { get; set; }

        [DataMember]
        public string user_name { get; set; }

        [DataMember]
        public bool online { get; set; }

        [DataMember]
        public bool available { get; set; }

        public ICommunicationObject comm_obj;
    }

    // Use a data contract as illustrated in the sample below to add composite types to service operations.
    [DataContract]
    public class CompositeType
    {
        bool boolValue = true;
        string stringValue = "Hello ";

        [DataMember]
        public bool BoolValue
        {
            get { return boolValue; }
            set { boolValue = value; }
        }

        [DataMember]
        public string StringValue
        {
            get { return stringValue; }
            set { stringValue = value; }
        }
    }

}

My client app is sending ImageDataResponse.Data[1000000] blocks of image data to the server:

C#

    ImageDataResponse imageData = new ImageDataResponse();

            // copy image data to byte array
            Bitmap bitmap = new Bitmap(pictureBox2.Image);
            imageData.Size = bitmap.Height * bitmap.Width;
            imageData.Data = new byte[imageData.Size];

            using (var memoryStream = new MemoryStream())
            {
                bitmap.Save(memoryStream, ImageFormat.Jpeg);
                imageData.Data = memoryStream.ToArray();
            }
            imageData.Size = imageData.Data.Count();

ImageDataRequest imgDataReq = new ImageDataRequest();

    imgDataReq = m_LiveCtrlService.SendImageDataSvc(imageData);

I'm a beginner and any help would be greatly appreciated!

Thank you in advance.

how to show the last login time using sessions

If your application uses some type of authentication, then you could implement a "Users" table and include a "last login" date/time field. Each time the user successfully logs in you update this field. You could also implement a "failed login count" and increment it each time the user fails to login. After, 5 attempts, lock the account and notify your administrator that someone may be trying to hack your system. Once the user logs in successfully, you reset the counter to zero.

That's how our system basically works.

I write it to the database, added a column in the user info for last login time, so we can track it, use it for locking out the user and so forth.

You may want to consider login and logout time, and track both.

I have a simple task: to cross-page post-back to a new page in a new window. I have no problem posting to the new page in the same window or to another tab. But, try as I may, I cannot post-back to a new window. One which I wish to format as with JS window.open. I am using ASP.NET with VB, Ajax and a tiny bit of JavaScript. Can someone direct me to a solution? Maybe an example?
Thanks.
Bobby

you want new window open on specific control event(like button click) or any postback?
check http://stackoverflow.com/a/7366346/2558060[^]

Review ASP.NET Cross-Page Posting in asp.net using c# Tutorial[^]. This will help you to understand and achieve your result.

Thank you both for your prompt reply. But neither method worked for me. But maybe I didn't implement your suggestion correctly. So I decided to leave it as is, just opening the target in a new tab. If the user wishes, she can move the tab to a new window.

Bobby

i tried lot to figure out why a position specific issue is occurring for IE 11 but still i have no luck. here i am attaching a picture then you can understand how UI is looking at IE 11.

http://i.stack.imgur.com/GrkB8.png[^]

CSS

this below CSS i wrote but still no luck.

 .arrange_collection_today
                    {
                        width: 216px;
                        color: #fff;
                        font-size: 20px;
                        overflow: hidden;
                        display: block;
                        text-align: left;
                        height: 73px;
                        line-height: 23px;
                        text-decoration: none;
                        padding: 6px;
                        float: right;
                        background-color: #3ab54b;
                        margin-right: 181px;
                        border-radius: 1px;
                        margin-top: 60px;

                        _margin-top:-60px; /* Only works in IE6 */
                        *margin-top:-60px; /* IE6, IE7 */
                        +margin-top:-60px;/* Only works in IE7*/
                        *+margin-top:-60px; /* Only works in IE7 */
                        margin-top:-60px\9; /* IE6, IE7, IE8, IE9 */
                        margin-top:-60px\0; /* IE8, IE9 */
                        margin-top:-60px\9\0;/*Only works in IE9*/
                    }

                    .ie10 .arrange_collection_today
                    {
                        margin-top:50px;
                    } /* Only works in IE10 */

                    *::-ms-backdrop, .arrange_collection_today
                    {
                        margin-top:50px;
                    } /* IE11 */

this css i applied for IE 11 but not working

                *::-ms-backdrop, .arrange_collection_today
                {
                    margin-top:50px;
                } /* IE11 */

this is my web site url http://www.bba-reman.com. if possible please visit my web site with IE 11 and select country UK from the first page and hit go button then you will be redirected to a page where you notice green button not looking good. any help would be appreciated.

tbhattacharjee

I think it's your jquery, or really the design of the HTML

I would of made 4 div elements, and changed the display value of those, instead of 4 span tags, changing the display values.

I think the div container wasn't able to expand down on the span change, it just failed on resizing, perhaps it has a static height, or block was not included for auto vertical expansion.

[EDIT / EXPLANTATION]

It's been my experience that when using a span tag, an inline element, when the text is too long and it has to wrap, you lose control of the "css: line-height" unless you set that value to something like 90%.

I've noticed that different browsers set the font size a little different as well, and I think that IE makes the fonts a bit larger in size.

That's why I think 4 div containers with each marketing message that toggles the display value is easier to manage and consistent in display, rather than tweaking the CSS to detect the version.

So were back to IE 9-11, in which Microsoft went out of there way to change the user agent string so that people don't detect it anymore, because they claim that it's the same now as all other browsers, and tweaks are no longer needed.

modified 14-Nov-14 14:58pm.

thanks for your time but i just do not understand what u r trying to say....i was looking for solution.

tbhattacharjee

Hi Tridip,

I think in your index.aspx page, inside inline style tag, there is a code :

CSS

@media not all, not all {
.arrange_collection_today {
    margin-top: -60px;
  }
}

this effects in IE 11. Try to remove this code if possible or try another css style for this div.

yes solved this way

CSS

@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) { .arrange_collection_today { margin-top:50px;  } }

tbhattacharjee

hi
i have a problem with report viewer in asp.net

on local is correct but on server that uploaded error

The definition of this report is not valid or supported by this version of Reporting Services. The report definition may have been created with a later version of Reporting Services, or contain content that is not well-formed or not valid based on Reporting Services schemas. Details: Data at the root level is invalid

check authentication and permisson on server
change From: ReportViewer1.ServerReport.ReportServerUrl = new Uri("http://localhost/reportserver");
To:ReportViewer1.ServerReport.ReportServerUrl = new Uri("http://Your server name/reportserver");

in buissness intelligence side change report property
http://localhost/reportserver[^] to http://Your server name/reportserver"

how to create web service in asp.net c# step by step
plz any best video or any tutorial share ????