ASP.NET Discussion Boards

SayreCC27-Apr-09 18:38

27-Apr-09 18:38

Hi, you can use asp:panel with update image like ajax.gif set your panel.visible=false

in your button add event

btnadd_click
(
panel.visible = true

Insert.....
delete....
update....

panel.visible=false

)

Hope this one can help.
Thanks

Hi, Please select Good Question if my answer are fit to your Question.

Re: Progress Bar

Abhijit Jana27-Apr-09 19:20

Abhijit Jana

27-Apr-09 19:20

sayrecollado wrote:
Hi, Please select Good Question if my answer are fit to your Question.

Dmm.. There is no Good Question Option D'Oh! | :doh:

only Good Answer is there
Smile | :)

cheers,
Abhijit
CodeProject MVP

Case In linq To Sql

ais0727-Apr-09 18:25

ais07

27-Apr-09 18:25

Hi There,
I Want To Know How To Write Query With Case In Linq To Sql.
Thanks,

Re: Case In linq To Sql

SayreCC27-Apr-09 18:43

SayreCC

27-Apr-09 18:43

Hi, you can create a case in stored procedure. then use that stored as method to your DATAContextClass

Hope this one can help.
Thanks

Hi, Please select Good Question if my answer are fit to your Question.

Re: Case In linq To Sql

lovexiaoxiao27-Apr-09 18:44

lovexiaoxiao

27-Apr-09 18:44

for example

Re: Case In linq To Sql

SayreCC27-Apr-09 18:51

SayreCC

27-Apr-09 18:51

Hi, create a stored procedure with your sql statement with CASE statement.

then after you saved the S.P. (stored procedure) drag it to your DATAContextClass.dhml

then you will see right side of the pane the name of your SP

then in your code behind call that SP

datacontextclass dc = new datacontextclass();

var q =
from a in convert.tostring(dc.nameofyourSP)
where a.columnfield == textbox1.text

grid1.datasource = q;
grid1.databind();

Hope this one can help.
Thanks

Hi, Please select Good Question if my answer are fit to your Question.

Re: Case In linq To Sql

lovexiaoxiao27-Apr-09 19:06

lovexiaoxiao

27-Apr-09 19:06

thanks

Re: Case In linq To Sql

SayreCC27-Apr-09 19:08

SayreCC

27-Apr-09 19:08

Hi, Thanks hope youve understand.

Hope this one can help.
Thanks

Hi, Please select Good Question if my answer are fit to your Question.

Re: Case In linq To Sql

lovexiaoxiao28-Apr-09 16:42

lovexiaoxiao

28-Apr-09 16:42

what mean?

How to integrate webcam in web application

Rameez Raja27-Apr-09 16:34

Rameez Raja

27-Apr-09 16:34

Hi all,

How i integrate the webcam in my web application iam working on attandance system for employees where i have to capture their phots during sign In and store inside database .

What are possible ways to integrate webcam any article or suggestion ?

Best Regards
Rameez

Re: How to integrate webcam in web application

saanj28-Apr-09 21:20

saanj

28-Apr-09 21:20

Hi,
Very good and interesting question. You have to use the ActiveX object of the WebCam driver. Please follow the link:

http://weblogs.asp.net/nleghari/articles/webcam.aspx

Either you love IT or leave IT...

the name 'Label2' doesn't exist in current context

XaraW27-Apr-09 9:01

XaraW

27-Apr-09 9:01

Hi

I've added the global.aspx to website with code

void Application_Start(object sender, EventArgs e)
{
// Code that runs on application startup
Application["userCount"] = 0;
}

and

void Session_Start(object sender, EventArgs e)
{
// Code that runs when a new session is started
Application.Lock();
Application["userCount"] = (int)Application["userCount"] + 1;
Application.UnLock();
Label2.Text = Application["userCount"].ToString();
}

then to the page Default.aspx the label

</form>
<div>
<asp:Label ID="Label2" runat="server" Text=""></asp:Label>
</div>
</body>

and then getting errror

The name 'Label2' does not exist in the current context c:\WebSite1\Global.asax

I'm not sure what is wrong here. Please help?

Re: the name 'Label2' doesn't exist in current context

Christian Graus27-Apr-09 9:49

Christian Graus

27-Apr-09 9:49

It seems you need to get your hands on a basic ASP.NET book and read it. The error means what it says.

Christian Graus

Driven to the arms of OSX by Vista.

"I am new to programming world. I have been learning c# for about past four weeks. I am quite acquainted with the fundamentals of c#. Now I have to work on a project which converts given flat files to XML using the XML serialization method" - SK64 ( but the forums have stuff like this posted every day )

Re: the name 'Label2' doesn't exist in current context

Rolando CC27-Apr-09 10:45

Rolando CC

27-Apr-09 10:45

I don't think to be possible make reference to user control inside global.asax, use a webForm with a label to display the Application["userCount"] value.

Re: the name 'Label2' doesn't exist in current context

XaraW27-Apr-09 11:28

XaraW

27-Apr-09 11:28

Tnx Roclr

Unfortunately the book on ASP.NET that I hav didn't mention this bit of insight..

I really appreciate your help

Re: the name 'Label2' doesn't exist in current context

Yusuf27-Apr-09 12:24

Yusuf

27-Apr-09 12:24

Does the book you referred suggested that code you have shown? If so, you need to ditch it and find a better one.

Yusuf
Can I help you?

Re: the name 'Label2' doesn't exist in current context

AlexeiXX327-Apr-09 15:39

AlexeiXX3

27-Apr-09 15:39

The global asax is ok, just remove the reference to label2

In a webform use this code:
LabelName.Text = Application["userCount"].ToString();

Alexei Rodriguez

Weird UpdatePanel status 500 server error

dani kenan27-Apr-09 7:36

dani kenan

27-Apr-09 7:36

Hi,

I have a main page with an update panel and within it a wizard control.

The main page is assigned a Master page in which a script manager resides.

The wizard buttons are implemented as image buttons inside navigation templates and each of the 3 wizard steps is implemented by a dedicated user control.

On each step-control, I have several textboxes and dropdown lists. Some of the controls generate (Async) PostBack to the server.

The wizard navigation also generates AsyncPostBack since the whole wizard is inside the updatepanel.

The application was tested thoroughly and it causes no problems for clients with relatively good connection.

Alas when used by remote clients with slower connection (we assume this is the commonality between those reporting the error), the navigation between pages sometime shows the following error:

"Sys.WebForms.PagerequestManagerServerErrorException: An Unknown error occurred while processing the request on the server. The status code returned from the server was 500"

Please note: error was manifested only for some client, only some times and only in the navigation, not in the inter-step updates.

I have used fiddler and saw that the http response from the server is actually with status 200 but it contains the raw response text is something like "0|error|500||"

I tried to log errors on the ScriptManager.AsyncPostBackError event but it seems not to be called.

Any suggestions???

10x in advanced

Re: Weird UpdatePanel status 500 server error

Ramesh Swaminathan28-Apr-09 0:32

Ramesh Swaminathan

28-Apr-09 0:32

Set ValidateRequest to "false" in your page directive.

Hope this will address your problem.

Re: Weird UpdatePanel status 500 server error

JeevaBharathi28-Apr-09 20:17

JeevaBharathi

28-Apr-09 20:17

No, I am getting the same error even after setting validate =false.
Why this is occuring?
Can anyone please provide me a exact solution to solve this problem permenently?

Thanks in advance.

Problem writing metadata to jpg

KoskoArts27-Apr-09 4:50

KoskoArts

27-Apr-09 4:50

Hi,

I have a small form app that imports a image that a user browses to and adds the metadata to that image based on information provided in the form.

The process does work, it just doesn't write the description properties. It writes to the copywrite tag just fine, as well as create and transport the new image between servers.

Any help is always appreciated. The code that is supposed to write the metadata is:

if(this.sErrors == "") {
                try {
                    ASCIIEncoding oEncoder = new ASCIIEncoding();
                    string sNewFile = Guid.NewGuid().ToString("D")+".jpg";
                    string sFile = Server.MapPath("tmp\\upload-"+sNewFile);
                    PropertyItem oProp;
                    PictureLocation.SaveAs(sFile);
                   
                    Image imgUpload = Image.FromFile(sFile);
                    foreach(PropertyItem oProperty in imgUpload.PropertyItems) {
                        imgUpload.RemovePropertyItem(oProperty.Id);
                    }
                   
                    oProp = CreatePropertyItem(0x0320, PictureCaption.Text);
                    imgUpload.SetPropertyItem(oProp);
                   
                    oProp = CreatePropertyItem(0x013B, FirstName.Text+" "+LastName.Text+" ("+EMail.Text+")");
                    imgUpload.SetPropertyItem(oProp);

                    // works: Also tested writing other properties to this string, and other inputs work                   
                    oProp = CreatePropertyItem(0x8298, Address.Text + ", " + City.Text + ", " + State.Text + " " + ZipCode.Text);
                    imgUpload.SetPropertyItem(oProp);
                   
                    oProp = CreatePropertyItem(0x010E, WhatKindOfFun.Value);
                    imgUpload.SetPropertyItem(oProp);
   
                    imgUpload.Save(Server.MapPath("tmp\\process-"+sNewFile));
                    imgUpload.Dispose();
                   
                    // Create directories.
                    DateTime oDate = DateTime.Now;

                    this.CreateFTPDirectory("ftp://64.179.77.44/"+Convert.ToString(oDate.Year)+"/");
                    this.CreateFTPDirectory("ftp://64.179.77.44/"+Convert.ToString(oDate.Year)+"/"+Convert.ToString(oDate.Month)+"/");
                    this.CreateFTPDirectory("ftp://64.179.77.44/"+Convert.ToString(oDate.Year)+"/"+Convert.ToString(oDate.Month)+"/"+Convert.ToString(oDate.Day)+"/");
                   
                    // FTP file to Interchange.
                    FtpWebRequest oFTP = (FtpWebRequest)FtpWebRequest.Create("ftp://64.179.77.44/"+Convert.ToString(oDate.Year)+"/"+Convert.ToString(oDate.Month)+"/"+Convert.ToString(oDate.Day)+"/"+sNewFile);
                    oFTP.Method = WebRequestMethods.Ftp.UploadFile;
                    oFTP.Credentials = this.oCred;
                    oFTP.UsePassive = true;
                    oFTP.UseBinary = true;
                    oFTP.KeepAlive = false;
                   
                    FileStream oFile = File.OpenRead(Server.MapPath("tmp\\process-"+sNewFile));
                    byte[] oBuffer = new byte[oFile.Length];
                    oFile.Read(oBuffer, 0, oBuffer.Length);
                    oFile.Close();
                   
                    Stream oStream = oFTP.GetRequestStream();
                    oStream.Write(oBuffer, 0, oBuffer.Length);
                    oStream.Close();
                   
                //    File.Delete(Server.MapPath("tmp\\upload-"+sNewFile));
                //    File.Delete(Server.MapPath("tmp\\process-"+sNewFile));
                   
                    Response.Redirect("The site it goes to");
                } catch {
                }
            }

lost focus event in textbox

Girish48127-Apr-09 3:59

Girish481

27-Apr-09 3:59

On the page load event i have coded this:

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
TextBox1.Attributes.Add("onblur", "return myfunc()")
End Sub

Public Sub myfunc()
Dim dataset1 as new dataset
Dim da as new dataadapter
..
..
TextBox1.Text = "This is lostfocus."
End Sub

but it is not working. In the myfunc() i would like to code connection string, data adapter and dataset to go further.

Kindly tell me how call a function/procedure which is wirtten in file.aspx.vb on lost focus of textbox.

Thanks & Regards
Girish Sharma

Re: lost focus event in textbox

DoctorMick27-Apr-09 5:18

DoctorMick

27-Apr-09 5:18

You're trying to call a server side event with client script by the looks of it. Try learning about Ajax.

Re: lost focus event in textbox

SayreCC27-Apr-09 15:08

SayreCC

27-Apr-09 15:08

Hi, to call function, first the function must be public if you want to use it to other project or webform.

About your Code to call the procedure myfunc()

example in your button1 click event you can insert

button1_click()
{
myfunc();
}

Hope this one can help.
Thanks

Hi, Please select Good Question if my answer are fit to your Question.

Re: lost focus event in textbox

AlexeiXX327-Apr-09 15:33

AlexeiXX3

27-Apr-09 15:33

use this code:

Protected Sub TextBox1_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
      myfunc()
  End Sub

Remove the code in you page load and set the textbox autopostback = true

Alexei Rodriguez

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.