cant get dropdown list bound to data in template column of gridvie

  • Thread starter Thread starter Paul
  • Start date Start date
P

Paul

Hi I have a generic list of data
list <type> listcategory;
listcategory = new list <type>;
I also have a dropdown box that I have put into a template column of a
gridview.
I was able to populate the dropdown box ok when it was outside of the gridview

for (int i = 0; i <= listcategory.Count - 1; i++)
{
ddl.Items.Add(listcategory.Description);
}

Now that the control is in the gridview, ddl is not recognized.

I tried the following event but it does not seem to be reaching it.
protected void gridview_RowDataBound(object sender, DataGridItemEventArgs e)
{
;
}
I also tried the template edit from the gridview properties but could not
see how to bind the dropdown box to the items listcategory.Description.
Thanks.
 
Paul

You need to use FindControl within your RowDataBound event-handler, i.e.

protected void gridview_RowDataBound(object sender, DataGridItemEventArgs e)
{
DropDownList ddl = e.Row.Cells[columnIndex].FindControl("ddl") as
DropDownList;

if (ddl != null)
{
// Databind, or populate ListItems in a loop.
}

}
 
Paul

You need to use FindControl within your RowDataBound event-handler, i.e.

protected void gridview_RowDataBound(object sender, DataGridItemEventArgs e)
{
DropDownList ddl = e.Row.Cells[columnIndex].FindControl("ddl") as
DropDownList;

if(ddl != null)
{
// Databind, or populate ListItems in a loop.
}
}
 
thanks that worked!. Just had an additional question, I need the grid to
have 2 dropldown boxes but want the other fields to be two empty text box
columns for data entry, and a checkbox column for bool entry as well as a
final row count column,(just displays the row count). I had to bind the grid
to results of a dataset just to get the grid to show up so it currently has
extra undesired data from this dataset. Should I just create an empty
dataset and bind it to so a single row with two dropdowns and the other
fields discribed above show up?
Also I noticed there is no way to add a new row within the control, so
guessing this might have to be done outside the control.
Paul G
Software engineer.


Lee Thorpe said:
Paul

You need to use FindControl within your RowDataBound event-handler, i.e.

protected void gridview_RowDataBound(object sender, DataGridItemEventArgs e)
{
DropDownList ddl = e.Row.Cells[columnIndex].FindControl("ddl") as
DropDownList;

if(ddl != null)
{
// Databind, or populate ListItems in a loop.
}
}


Paul said:
Hi I have a generic list of data
list <type> listcategory;
listcategory = new list <type>;
I also have a dropdown box that I have put into a template column of a
gridview.
I was able to populate the dropdown box ok when it was outside of the
gridview

for (int i = 0; i <= listcategory.Count - 1; i++)
{
ddl.Items.Add(listcategory.Description);
}

Now that the control is in the gridview, ddl is not recognized.

I tried the following event but it does not seem to be reaching it.
protected void gridview_RowDataBound(object sender, DataGridItemEventArgs
e)
{
;
}
I also tried the template edit from the gridview properties but could not
see how to bind the dropdown box to the items listcategory.Description.
Thanks.
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