How to access controls which are placed in datagrid Header Templete

[upendra]

Hi,
I am B.V.Ramesh Babu.I am working as software programmer using .net.We
are using asp.net1.1 with C#.net as coding.I hope that i will get the
required support from you.
Here is my requirement.
I am using datagrid control.In that data grid I put checkboxes in both
item templete and in Header templete.My requirement is is if i check
any checkbox in itemtemplete and click delete button those records will
be deleted.In another way I check the check box in the Header templete
The all check boxes will be checked and if dechecked all check boxes
will be deleted.
For that purpose I took check box in header templete.But I am unable
access the check box in the header templete of the datagrid
I use the following html code.
---------------------------------------------------------HTML-------------------------------------------------
<table>
<TR>
<TD>
<asp:DataGrid id="DataGrid1" style="Z-INDEX: 101; LEFT: 176px;
POSITION: absolute; TOP: 104px"
runat="server" Width="688px" Height="248px"
AutoGenerateCol umns="False">
<AlternatingIte mStyle BackColor="#FFF FCC"></AlternatingItem Style>
<ItemStyle BackColor="#FF9 9CC"></ItemStyle>
<HeaderStyle Font-Bold="True" BackColor="#CCF FFF"></HeaderStyle>
<Columns>
<asp:TemplateCo lumn>
<HeaderTemplate >
<asp:CheckBox id="CheckBox2" runat="server"> </asp:CheckBox>
</HeaderTemplate>
<ItemTemplate >
<asp:CheckBox id="CheckBox1" runat="server"> </asp:CheckBox>
</ItemTemplate>
</asp:TemplateCol umn>
<asp:BoundColum n DataField="Bank ID" ReadOnly="True"
HeaderText="Ban kID"></asp:BoundColumn >
<asp:BoundColum n DataField="Bank Name"
HeaderText="Ban kName"></asp:BoundColumn >
<asp:BoundColum n DataField="Coun tryName"
HeaderText="Cou ntry"></asp:BoundColumn >
<asp:BoundColum n DataField="City Name"
HeaderText="Cit y"></asp:BoundColumn >
</Columns>
</asp:DataGrid>
</TD>
</TR>
</table>
---------------------------------------------------------HTML-------------------------------------------------

I use follwing C# code for accessing the check box in header control
---------------------------------------------------------C#-----------------------------------------------------
PAGELOAD
private void Page_Load(objec t sender, System.EventArg s e)
{
if(!IsPostBack)
{
bindgrid();
}
foreach(DataGri dItem dgi in DataGrid1.Items )
{
CheckBox Hchk=(CheckBox) dgi.FindControl ("CheckBox2" );
if(Hchk.Checked )
{
Response.Write( "HEDER CXHECK BOX IS CHECKED");
}
}
}
BINDGRID FUNCTION
private void bindgrid()
{
SqlDataAdapter da=new SqlDataAdapter( "select * from BANKS1",con);
da.Fill(ds,"Ban ks");
DataGrid1.DataS ource=ds.Tables["Banks"];
DataGrid1.DataB ind();
}
---------------------------------------------------------C#-----------------------------------------------------
Please help me in this regard.
I would like to access the control which is placed in Headeritem of the
datagrid.
-Thanks in Advance,
Ramesh Babu