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I have spent all day trying to do this and have come up with a
headache !!

I have a DataGrid and a couple which is not bound to any data (it's a
Template Column with all of the column rows as Checkboxes).

Once the DataGrid is bound, it should allow the user to click on the
column heading a (through JavaScript or a Server Side function) will
check or uncheck all of the columns rows checkboxes.

I have seen may examples of the Heading used for sorting or a checkbox
in the heading to handle this but this is not what is being asked for.

1. How can I change the Template Column Heading to a "clickable" Text
button (if that's possible). (Link button ?!)

Checkout the event ItemCreated
and check when the header row is being created.... create a checkbox in the
cell required.

this.ItemCreated += new DataGridItemEventHandler(myGrid_ItemCreated);



private void myGrid_ItemCreated(object sender, DataGridItemEventArgs e)
{

if (e.Item.ItemType == ListItemType.Header)
{
CheckBox chk = new CheckBox();
chk.ID = "chkAll";
chk.Checked = false;
chk.CssClass = "checkBox";

e.Item.Cells[3].Controls.Add(chk);
}
}

Matt.


"BTHOMASinOHIO" <> wrote in message
news: om...
> I have spent all day trying to do this and have come up with a
> headache !!
>
> I have a DataGrid and a couple which is not bound to any data (it's a
> Template Column with all of the column rows as Checkboxes).
>
> Once the DataGrid is bound, it should allow the user to click on the
> column heading a (through JavaScript or a Server Side function) will
> check or uncheck all of the columns rows checkboxes.
>
> I have seen may examples of the Heading used for sorting or a checkbox
> in the heading to handle this but this is not what is being asked for.
>
> 1. How can I change the Template Column Heading to a "clickable" Text
> button (if that's possible). (Link button ?!)

I forgot to mention... you need to add:

chk.AutoPostback = true;

chk.CheckedChanged += new EventHandler(chk_CheckedChanged);


to handle the event:

private void chk_CheckedChanged(object sender, EventArgs e)
{

bool checked = ((CheckBox)sender).Checked;

// do something based on whether the checkbox is checked or not. i.e. run
through each row and change the Checked property by finding the control in
the cell.

CheckBox chk;

foreach (DataGridItem dgi in myDataGrid.Items)

{

if (dgi.ItemType != ListItemType.Header)

{

chk = (CheckBox)FindControl("chkDelete");

if (chk != null)

chk.Checked = checked;

}

}


"Matt" <> wrote in message
news:...
> Checkout the event ItemCreated
> and check when the header row is being created.... create a checkbox in
the
> cell required.
>
> this.ItemCreated += new DataGridItemEventHandler(myGrid_ItemCreated);
>
>
>
> private void myGrid_ItemCreated(object sender, DataGridItemEventArgs e)
> {
>
> if (e.Item.ItemType == ListItemType.Header)
> {
> CheckBox chk = new CheckBox();
> chk.ID = "chkAll";
> chk.Checked = false;
> chk.CssClass = "checkBox";
>
> e.Item.Cells[3].Controls.Add(chk);
> }
> }
>
> Matt.
>
>
> "BTHOMASinOHIO" <> wrote in message
> news: om...
> > I have spent all day trying to do this and have come up with a
> > headache !!
> >
> > I have a DataGrid and a couple which is not bound to any data (it's a
> > Template Column with all of the column rows as Checkboxes).
> >
> > Once the DataGrid is bound, it should allow the user to click on the
> > column heading a (through JavaScript or a Server Side function) will
> > check or uncheck all of the columns rows checkboxes.
> >
> > I have seen may examples of the Heading used for sorting or a checkbox
> > in the heading to handle this but this is not what is being asked for.
> >
> > 1. How can I change the Template Column Heading to a "clickable" Text
> > button (if that's possible). (Link button ?!)
>
>