send id when image clicked in datalist

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hi all
i am using datalist to view image from database in imagebutton and want when clicked to image go to another page with id of this image to get the details of this image from database

this code of datalist

XML

asp:DataList ID="DataList1" runat="server"  RepeatColumns="3"  OnItemCommand="DataList1_ItemCommand" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3" GridLines="Both" Width="719px"  >
        <ItemTemplate>
            <asp:ImageButton ID="ImageButton2" runat="server" ImageUrl='<%#Eval("image")%>' CommandName="selectimage" Width=100 Height=100 /><br />

i am using this code in cs

C#

protected void DataList1_ItemCommand(object source,
        System.Web.UI.WebControls.DataListCommandEventArgs e)

    {

        if (e.CommandName == "selectimage")
        {

            int Id = int.Parse(e.CommandArgument.ToString());
            
            Response.Redirect("~/clothes3.aspx?Id=" + e.CommandArgument.ToString());

        }
    }

but get an exception when clicked on image but i do not the reason

Posted 1-Jul-11 9:05am

shimaa010

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Comments

Parwej Ahamad 1-Jul-11 15:17pm

So post here exception too.

shimaa010 1-Jul-11 16:29pm

the exception

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.

1 solution

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Christian Graus · Answer 1 · 2011-07-01T12:42:00

Solution 1

The error means what it says. If you do what it says in order to avoid this error, then your code will probably work. You can also google the exact error message to read what other people have done in this instance.

Posted 1-Jul-11 12:42pm

Christian Graus