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how about javascript codes. there are some jquery and javascript codes that the htm page most contains. by the way , if there's a problem with my codes why it works fine on local ?
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I may be way off base here, for I really don't see the connection between the XML and creating a HTML page from scratch.
When you develop on your computer, you can test 2 ways, 1 is in the Web Dev, which is a debug version of IIS Server, it's wide open, and has no security features, so you can access anything in your Windows OS. The web dev doesn't care what your doing, it just lets you step through code to fix issues.
The other is to use the IIS Server that you can run in the Windows OS, which does have Security and boundaries, in which you code cannot modify the OS. It cares what you do, and will apply boundaries and borders to your executing code.
As for your code, there is not posted for a through inspection.
With web code, you have to open, read and then close real fast. Because it's multi-user. I suspect that you left something open, or something crashed, and you don't know about it, so the connection closed.
This is the proper code for using XMLTextReader and opening a xml file. It has been tested over time, and can handle up to 3 read and writes per second. I open the file, read it, and destroy the reader. Then I manipulate the data. You have to add Serialize Handlers during the read and write.
Dim DataLocation As String = Nothing
DataLocation = Context.Server.MapPath("~/App_Data/CompanyInfo/ShippingLocations.xml")
'XML Data routines go here
Dim request_serializer As New XmlSerializer(GetType(Shipping_Origin_Data))
AddHandler request_serializer.UnknownNode, AddressOf serializer_UnknownNode
AddHandler request_serializer.UnknownAttribute, AddressOf serializer_UnknownAttribute
Dim Reader As XmlTextReader = Nothing
Dim XmlRequest As New Shipping_Origin_Data
Try
Reader = New XmlTextReader(DataLocation)
XmlRequest = CType(request_serializer.Deserialize(Reader), Shipping_Origin_Data)
Reader.Close()
Reader = Nothing
Catch ex As Exception
FirstRecordFlag = True
End Try
This is the proper code for writing a file to the disk drive with XMLTextWriter. Notice how I open and read the file, and then close it. I manipulate the data, and then I open the file and write it, and destroy all the objects.
Dim serializer As XmlSerializer
serializer = New XmlSerializer(GetType(Shipping_Origin_Data))
Dim XmlResponse As New Shipping_Origin_Data
XmlResponse.Version = "1.4.2"
XmlResponse.CreationDate = DateTime.Now.ToString("yyyy-MM-dd")
XmlResponse.Geographic_Record = MyLocation
Dim response_serializer As XmlSerializer = Nothing
response_serializer = New XmlSerializer(GetType(Shipping_Origin_Data))
Dim response_writer As StreamWriter = Nothing
response_writer = New StreamWriter(DataLocation)
response_serializer.Serialize(response_writer, XmlResponse)
response_writer.Close()
response_writer = Nothing
request_serializer = Nothing
serializer = Nothing
Protected Sub serializer_UnknownNode(ByVal sender As Object, ByVal e As XmlNodeEventArgs)
Dim Context As HttpContext = HttpContext.Current
End Sub
Protected Sub serializer_UnknownAttribute(ByVal sender As Object, ByVal e As XmlAttributeEventArgs)
Dim Context As HttpContext = HttpContext.Current
Dim attr As System.Xml.XmlAttribute = e.Attr
End Sub
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after 5 days the problem is not resolved.i will try this too. thank you all.
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Multiple Session or Multiple User login in same website/webapp at same time
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Is this a statement or a question? And already replied to in Q&A.
Unrequited desire is character building. OriginalGriff
I'm sitting here giving you a standing ovation - Len Goodman
modified 28-Oct-11 5:22am.
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How to write code in Asp.net for Multiple User login in same website/webapp at same time. Please help me with the code.
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The web server software handles sessions, and session id's. In asp.net, you just need to get the session id, and just work with that instance of the session. So for each session id, you write a session.add("login", true);, and the web server will handle the rest.
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Since I am new to working with C# asp.net 2010, I am asking the question on how to validate a checkbox list control.
I am adding a new checkboxlist control to a new C# asp.net 2010 web page I am in the process of working on. I am loading the values of the checkbox list controls from values I obtain in a sql server 2008 r2 database.
However, I would like to validate that at least one item in the checkbox list control has actually been selected. I would like to use a validator like the 'required validator' , 'custom validator', or some other validator to make certain the user selected something. I will run the validation when the user clicks the submit button.
Thus how would you accomplish this goal I have for using the validators? If my preferred method does not work, how would you validate that a checkbox list control has been checked? I do not want to update the database until the user has selected something.
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Hi,
Despite I'm not an ASP.NET specialist, I would create an extension method on the CheckBoxList class that would return whether any item is checked. Thus :
public static class CheckBoxListExtension
{
public static bool IsChecked(this CheckBoxList cbl)
{
ListItemCollection selectedItems = cbl.Items.Where(li => li.Selected);
return (selectedItems.Length > 0);
}
}
Then, in my code :
if (myCheckBoxList.IsChecked())
{
}
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In my Opinion;
The validator you want to use is just javascript, and is very unreliable. They only work on text, but you can make them work on Dropdowns, but on dropdowns, you have to add a blank item, with a value of "--", to indicate that the user did not select anything. Those validators are a waste of time, in production applications, they will haunt you at night.
You have to decide if you want to validate on the server side or client side.
on the server side, which requires a round trip to the server, and consumes bandwidth,
int returnValue = cbDecide.SelectedValue;
if the interger is 0, then nothing was selected.
in JQuery on the client side, it pretty much the same. Remember that DropDown's, Radio Button Groups, Checkbox groups pretty much work the same. They all have a selected value.
So make sure the dom is loaded first, and then execute your script.
$(document).ready(function () {
var validationFlag = true;
var decide_Value;
decide_Value = $('[id*="_cb_Decide_Field"]').val();
if (decide_Value == "") {
validationFlag = true;
}
}
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So I'm trying to have a textbox update during the run process of a backend powershell script. I have the script running correctly, threaded and returning info and updating the value of txtProgress.Text during the process. The problem is I am unable to get the partial postback to run and update the web page during this process. Any help would be greatly appreciated. Here is the code:
<table class="style1">
<tr>
<td>
<asp:Label ID="lblSpace3" runat="server" Width="75px"></asp:Label>
</td>
<td style="text-align: center">
<asp:UpdatePanel ID="upProgress" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:Button ID="btnSubmit" runat="server" OnClick="btnSubmit_Click"
Text="Submit" />
<asp:Button ID="btnCancel" runat="server" onclick="btnCancel_Click"
PostBackUrl="http://uspmvvmt001/vrs/admins/admins.aspx" Text="Cancel" />
<br />
<br />
<asp:TextBox ID="txtProgress" runat="server" Height="250px"
TextMode="MultiLine" Width="500px"></asp:TextBox>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="txtProgress" EventName="TextChanged" />
</Triggers>
</asp:UpdatePanel>
</td>
<td style="text-align: center">
<asp:Label ID="lblSpace4" runat="server" Width="75px"></asp:Label>
</td>
</tr>
</table>
protected void btnSubmit_Click(object sender, EventArgs e)
{
string Addsnapin = "Add-PSSnapin VMware.VimAutomation.Core";
string ConnectVserver = "Connect-VIServer vcenter-us-002 -user USERNAME -password PASSWORD";
int cpus, memory, numdisks, disk1, disk2 , disk3, disk4;
string vc, cluster, vmname, os;
string vars, fname;
fname = CreateFileName(24);
string ScriptFile = "UNCPATH\\ProvisionVM.ps1";
string OutFile = "UNCPATH\\ProvisionVM-testout.ps1";
string LogFile = "UNCPATN\\" + fname + ".log";
string scriptText = ReadPowerShellScript(ScriptFile);
cpus = Convert.ToInt32(ddlNumProc.Text.ToString());
memory = Convert.ToInt32(ddlAmtMem.Text.ToString()) * 1024;
vc = txtVC.Text.ToString();
cluster = ddlCluster.Text.ToString();
vmname = txtVMName.Text.ToString();
os = ddlOS.SelectedValue.ToString();
numdisks = Convert.ToInt32(ddlNumDisk.Text.ToString());
vars = "$cpus=" + cpus + "\r\n";
vars += "$memory=" + memory + "\r\n";
vars += "$vc=\"" + vc + "\"\r\n";
vars += "$cluster=\"" + cluster + "\"\r\n";
vars += "$vmname=\"" + vmname + "\"\r\n";
vars += "$os=\"" + os + "\"\r\n";
vars += "$numdisk=" + numdisks + "\r\n";
vars += "$LogFile=\"" + LogFile + "\"\r\n";
switch(numdisks)
{
case 1:
disk1 = Convert.ToInt32(txtDisk1.Text.ToString()) * 1024;
vars += "$disk1=" + disk1 +"\r\n";
break;
case 2:
disk1 = Convert.ToInt32(txtDisk1.Text.ToString()) * 1024;
disk2 = Convert.ToInt32(txtDisk2.Text.ToString()) * 1024;
vars += "$disk1=" + disk1 + "\r\n";
vars += "$disk2=" + disk1 + "\r\n";
break;
case 3:
disk1 = Convert.ToInt32(txtDisk1.Text.ToString()) * 1024;
disk2 = Convert.ToInt32(txtDisk2.Text.ToString()) * 1024;
disk3 = Convert.ToInt32(txtDisk3.Text.ToString()) * 1024;
vars += "$disk1=" + disk1 + "\r\n";
vars += "$disk2=" + disk1 + "\r\n";
vars += "$disk3=" + disk1 + "\r\n";
break;
case 4:
disk1 = Convert.ToInt32(txtDisk1.Text.ToString()) * 1024;
disk2 = Convert.ToInt32(txtDisk2.Text.ToString()) * 1024;
disk3 = Convert.ToInt32(txtDisk3.Text.ToString()) * 1024;
disk4 = Convert.ToInt32(txtDisk4.Text.ToString()) * 1024;
vars += "$disk1=" + disk1 + "\r\n";
vars += "$disk2=" + disk1 + "\r\n";
vars += "$disk3=" + disk1 + "\r\n";
vars += "$disk4=" + disk1 + "\r\n";
break;
default:
break;
}
scriptText = scriptText.Replace("**VARIABLES**", vars.ToString());
runSpace.Open();
ThreadScript(Addsnapin, sender, e);
ThreadScript(ConnectVserver, sender, e);
ThreadScript(scriptText, sender, e);
runSpace.Close();
}
private void ThreadScript(string scriptText, object sender, EventArgs e)
{
Collection<PSObject> PSCollection = new Collection<PSObject>();
Collection<Object> PSErrorCollection = new Collection<Object>();
PipelineExecutor PExecutor = new PipelineExecutor(runSpace,scriptText);
PExecutor.Start();
while (PExecutor.PLine.PipelineStateInfo.State == PipelineState.Running)
{
switch (WaitHandle.WaitAny(PExecutor.Hand))
{
case 0:
Collection<PSObject> data = PExecutor.PLine.Output.NonBlockingRead();
if (data.Count > 0)
{
for (int cnt = 0; cnt <= (data.Count - 1); cnt++)
{
txtProgress.Text += data[cnt].ToString();
txtProgress.Text += "\r\n";
upProgress.Update();
}
}
if (PExecutor.PLine.Output.EndOfPipeline)
{
}
break;
case 1:
Collection<object> Errordata = PExecutor.PLine.Error.NonBlockingRead();
if (Errordata.Count > 0)
{
for (int count = 0; count <= (Errordata.Count - 1); count++)
{
PSErrorCollection.Add(Errordata[count]);
}
}
break;
}
}
PExecutor.Stop();
PExecutor.PLine.Dispose();
}
}
If you need more info, please ask.
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Since this is the first 2010 asp.net webform application that I am writing in C#, I have a question. For this application, I am adding some web pages to the existing company website.
In this web app the user clicks the ' next button' when they have entered data on the first page. When the user clicks the next button, I do a Response.Redirect("~/programnnme.aspx"); for the user to proceed to the next web page for processing. However when the user starts processing on the second page, I need to display the values they entered in the database on the previous webpage.
Thus what is the best way to keep the values just entered available for the next web page? Can you explain this to me and/or give me a url that I can use as a reference?
I do not think using 'global' values is a good idea from what I have read on the internet.
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what version of HTML is this targeted at??
in HTML5 you have the LocalStorage object where you can put all this information if you want. however, if on your first page you know you are without a doubt storing the information in the database then it sounds like you have already resolved your question.
for information on the HTML5 localStorage object I will let you google it as there are tons of articles out there explaining its use.
as if the facebook, twitter and message boards weren't enough - blogged
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sc steinhayse wrote: I need to display the values they entered in the database on the previous webpage.
If the values have been stored in the database then all you need to do is extract them from that database and display. You could pass an id from page1 to page2 via the methods mentioned by Abhinav S that could be used to retrieve the record(s). Since the data is stored already there would be no need to actually pass it from page to page.
As for the database access and display, there are many resources here, and on the web, that demonstrate it.
No comment
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You have to change the way you think about web pages.
Each web page, is a brand new instance of the program, fresh and clean.
The page has no clue what happened 10 minutes ago, or what the last page was.
You can pass data back to the web server using some html post, in which you you transmit back some values, but that's a waste of time.
You need to establish something common to each page, like a querystring that holds the value of the name, order number, sessionid, just something.
For each new page that loads, you start all over again at the begining, loading the data needed to make the page work.
You do this in the Page.Load Cycle of the web page.
Context HttpContext = HttpContext.Current;
If Not Context.Request.QueryString("cid") Is Nothing Then
SecureCustomerID = Context.Request.QueryString("cid")
CustomerID = Convert.ToInt32(SecureQueryString.Decrypt(SecureCustomerID.Replace(" ", "+")))
SecureEmail = Get_CustomerEmail(CustomerID)
sEmail = EncryptDecrypt.DecryptTripleDES(SecureEmail)
AccountName = Get_CustomerAccountName(CustomerID)
End If
To call the next page:
SecureCustomerID = SecureQuerystring.encrypt(CustomerID)
Context.Response.Redirect("nextpage.aspx?cid=" & secureCustomerID)
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guys;
I am working on an none object oriented control written with JQuery that represents a dropdown.
My mission is to make a server control from the JQuery one, also add some properties to ease useing the control.
I am done with the control it self by throwing the HTML and the script to the client on Render() method. But I am facing some problems with properties where i have no object on client side.
what do you suggest me to do?
Help people,so poeple can help you.
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Ali Al Omairi(Abu AlHassan) wrote: where i have no object on client side
Can you clarify this?
No comment
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Sir;
In Microsoft Ajax.Net we create client controls by iheriting from Sys.UI.Control class and we can get it from anywhere in the page by calling $find() method with the cleint id of the element representing the control as a parameter. But in JQuery there are selectors that return JQuery Object holding the elements of the selction and there is no object represeinting the whole control.(where the control may contain more than an element) 
Help people,so poeple can help you.
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With Microsoft Ajax all you are getting is a representation of the DOM elements packaged as JavaScript object. JQuery extensions do this also. Everything about the control is in the DOM, either as elements with attributes or JavaScript variables with values.
No comment
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Sir;
you didn't get it. what I wanted was more than a DOM element (e.i. fields, properties, and methods). any way I solved the case by defining a function that represent the constructor of my class, and I added the methods and the properties to the function prototype.
thank you anyway.  [EOS]
Help people,so poeple can help you.
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You didn't get it. That is how Microsoft Ajax, JQuery and any other JavaScript framework works. but glad you solved your problem
No comment
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100 ![Rose | [Rose]](https://www.codeproject.com/script/Forums/Images/rose.gif) , Mark. 
Help people,so poeple can help you.
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Server side objects and objects created in the dom with jquery don't mix. there like oil and water. You can create an object server side, and manipulate it in the dom with jquery, but don't expect the value to pass back to the server. Since the server created the object, it expects the same object to post-back to the server, or else the server will detect that someone has altered the object, and trigger an error.
You can create an object in the dom, or the server, and use a web service to pass the value back, relying on something like JSON to format the data, and then send a response back in JSON to the DOM, using JavaScript to decode or parse the response. You can mix JavaScript with JQuery no problem, or just use pure JavaScript to do the work.
So you need to figure out how you want to create the object first. In the dom, you make a panel on the server side , and populate the server side div tag in the dom with your html.
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Hi
I have a VB/ASP.net app which includes a small user database for login data. This location of this database is stored in registry (HKCU) and read by a web page on the client machine (actually server side code) to authenticate the user.
The reason for this is that the Db is installed and managed via a config app installed on the server so the web client doesn't know the Db's location until it reads the registry value set by the config app.
This all works fine on the VS development machine but I cannot read the registry value from the client web app when deployed. I just receive null values.
Same result if using the web page from the server (localhost).
I've mucked about with long enough to guess its probably a permissions thing but I've no idea where to turn to now.
This is the code that is called on the server side app to retrieve the registry value-
Public Function RegistryGet(ByVal regKey As String) As String
Try
Dim regNode As RegistryKey = Registry.CurrentUser.OpenSubKey("Software\XYZ\appX", True)
If regNode Is Nothing Then Call RegistryCreate()
RegistryGet = CStr(regNode.GetValue(regKey, ""))
If RegistryGet.ToString Is Nothing Then
RegistryGet = ""
End If
regNode.Close()
Catch ex As Exception
Return ""
End Try
End Function
This works fine normally but not on the deployed app. Just returns a null yet it can see the registry key and string when stepped through in debug.
BTW, there is definitely a string value to read and all the string/key names match up.
Has anyone any experience with reading server registry from a web form?
regards
Malcom
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