Finding control inside the header template of a grid view

Question

1.00/5 (1 vote)

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I have a grid like this...

XML

<asp:GridView ID="gdv" runat="server">
            <Columns>
                <asp:TemplateField>
                    <HeaderTemplate>
                        <asp:TextBox ID="txt" runat="server"></asp:TextBox>
                    </HeaderTemplate>
                    <ItemTemplate>
                        <asp:Label ID="lbl" runat="server" Text='<%#DataBinder.Eval(Container.DataItem, "col1") %>'></asp:Label>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField>
                    <ItemTemplate>
                        <asp:DropDownList ID="ddl" runat="server" DataTextField="item" DataValueField="value"></asp:DropDownList>
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>

How can find the TextBox control which is there inside one of the header template in code behind(C# code) ?

Posted 13-Jul-10 0:16am

Raghavendra HG

Updated 7-Jul-16 2:14am

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4 solutions

Solution 5

Hi guys visit this link about Finding control inside the header template of a grid view

How To Find Controls present in HeaderTemplate or FooterTemplate of Repeater Control in ASP.Net - Nitesh Luharuka[^]

GridView inside GridView in ASP.Net (Nested GridView)[^]

c# - How do I access a control in the HeaderTemplate of my GridView - Stack Overflow[^]

Posted 7-Jul-16 2:14am

Allen Scott

Solution 1

C#

protected void chkSelectAll_CheckedChanged(object sender, EventArgs e)
    {
        CheckBox chk;

        foreach (GridViewRow rowItem in GridView1.Rows)
        {
            chk = (CheckBox)(rowItem.Cells[0].FindControl("chk1″));
            chk.Checked =((CheckBox)sender).Checked;
        }
    }

Posted 13-Jul-10 1:50am

ShafiqA

Updated 7-Jul-16 1:12am

v2

Comments

Arun Jacob 13-Jul-10 8:44am

If you use formatting post will be more readable.

Raghavendra HG 13-Jul-10 9:21am

This wont work dude as you are finding the control inside the Rows.

Solution 4

Here's what worked for us:

private void Lab_1_GV1_Populate_SearchText()
{
GridView GV1 = (GridView)FindControl("Lab_1_GV1");
TextBox TXB1 = (TextBox)GV1.HeaderRow.FindControl("Lab_1_TX2GV1");
}

Posted 23-Aug-13 0:20am

Member 10219828

Updated 7-Jul-16 1:19am

v2

Comments

[no name] 23-Aug-13 7:39am

The question was asked and answered over 3 years ago. There is no real need to answer it again.

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vinayak_99 · Accepted Answer · 2010-07-13T02:42:00

By handling RowDataBound() event of the gridview you can find Textbox control inside header template.

C#

protected void gdv_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (gdv.HeaderRow != null)
        {
            TextBox txt = (TextBox)gdv.HeaderRow.FindControl("txt");
        }
    }