image button onclick event

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when i click on the image button it should redirect me to another page.
but iam unable to.
the code i have written is
<asp:ImageButton runat="server" ID="imgBtn" onclick="imgBtn_Click"/>

C#

protected void imgBtn_Click(object sender, ImageClickEventArgs e)
      {
          Response.Redirect("~/resource.aspx");
      }

can any one help me

Posted 29-Aug-10 19:31pm

srujanac#

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demouser743 · Answer 1 · 2010-08-29T19:40:00

Solution 1

Strange. Is it raising any error sort of thing or remaining in the same page

Posted 29-Aug-10 19:40pm

demouser743

Comments

srujanac# 30-Aug-10 1:48am

iam getting an error
System.ArgumentException: Invalid postback or callback argument. Event validation is enabled using <pages enableeventvalidation="true"> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.

demouser743 30-Aug-10 1:54am

Have u written some sort of validations or anything or simply you are transferring page on image click with out any sort of code

srujanac# 30-Aug-10 1:58am

no, i just need to go to other page when i click on the image button

demouser743 30-Aug-10 2:12am

Is there any other code you have written on the page or some sort of thing on the page load of the second page

srujanac# 30-Aug-10 2:35am

protected void DataList1_ItemDataBound(object sender, DataListItemEventArgs e)
{
if (e.Item.DataItem != null)
{
ImageButton imgBtn = (ImageButton)e.Item.FindControl("imgBtn");
//
string path = (((System.Data.DataRowView)(e.Item.DataItem)).Row.ItemArray[0].ToString());
int ind = path.LastIndexOf(".");
string fileType = path.Substring(ind + 1).ToString();
//string str = Server.MapPath("~/images/icon_pdf.png");
if (fileType == "pdf")
{
imgBtn.ImageUrl = "~/images/icon_pdf.png";
}

else
{
imgBtn.ImageUrl = "~/images/icon_word.png";
}

}

}

and
protected void LinkButton1_Click(object sender, EventArgs e)
{
Response.Redirect("~/resource.aspx");
}

and in the page load of the other page i have bounded a datalist to a datasource

srujanac# 30-Aug-10 2:44am

ya i got is i just added if (!IsPostBack){here i have binded the datalist }

Christian Graus · Answer 2 · 2010-08-29T19:41:00

Solution 2

I assume that, despite your not telling us so, this is an ASP.NET website ? have you set a break point to see if your event fires ? I see no reason for this code to not work. I don't recognise ImageClickEventArgs, but I assume this is the right event, IDE generated.

Posted 29-Aug-10 19:41pm

Christian Graus

Comments

srujanac# 30-Aug-10 1:50am

the event itself is nit firing but idont know the reason