GridView CheckBoxes- All fields showing unchecked during debugging in code-behind

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My GridView contains 2 column (UserId and a CheckBox field).

The user is selecting a few rows by checking in the checkBox.
While debugging, it shows false (ie.unchecked) and therefore it is not executing the code within "if (cb.Checked)".

I am not able to find where I did the mistake.
//==========================================================

XML

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns ="false">
        <Columns >
        <asp:TemplateField >
        <ItemTemplate >
        <asp:Label ID="Label1" runat="server" Text='<%#Eval("UserId")%>'></asp:Label>
        </ItemTemplate>
        </asp:TemplateField>

        <asp:TemplateField >
        <ItemTemplate >
            <asp:CheckBox ID="CheckBox1" runat="server" />
        </ItemTemplate>
        </asp:TemplateField>
        </Columns>
        </asp:GridView>

        <br /><br />
        <asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />

//==========================================================

C#

protected void Button1_Click(object sender, EventArgs e)
    {
        foreach (GridViewRow gr in GridView1.Rows)
        {
            CheckBox cb = (CheckBox)gr.FindControl("CheckBox1");
            if (cb.Checked)
            {
                string aa = "wkwk";
            }
        }
    }

Posted 19-Apr-11 20:17pm

SHAJANCHERIAN

Updated 19-Apr-11 21:36pm

Dalek Dave

v2

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Comments

Ciumac Sergiu 20-Apr-11 2:23am

Have you tried (Checkbox)gr[1], instead of using FindControl?

ParthaDinda 20-Apr-11 2:29am

Are you handel postback? if write any code in page load try to write
in if(!postback) block.
Otherwise please share your full cs page code.

SHAJANCHERIAN 20-Apr-11 3:11am

Thank You

Dalek Dave 20-Apr-11 3:36am

Edited for Grammar, Syntax and Readability.

1 solution

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SHAJANCHERIAN · Answer 1 · 2011-04-19T21:10:00

I could find the error.
The code was like this.

C#

protected void Page_Load(object sender, EventArgs e)
    {
       //Databinding to GridView

    }

//===================================================================
The corrected code is as follows
//===================================================================

C#

protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
           //Databinding to Gridview
        }

    }