Hello Asaf,
Are you use a SqlDatasource or ObjectDataSource control to retrieve the
Count of records in a table? Based on my understanding, only
ObjectDataSource can be configured to use TableAdapter component and
SqlDataSource will hide the code logic of underlying data accessing.
Also, after you have get the count data from
DataSourceControl(sqlDatasrouce or objectdatasource), how do you display
the value on control, use databinding (through DataSourceId) or manually
call DataSource.Select method and assign the return value to the target
control?
If you are using databinding approach, you just need to recall the
"DataBind" method of the target control(such as GridView ) after you've
peformed inserting or updating in the backend database. e.g.
suppose I use another DetailsView to insert data into backend data, I can
call the "GridView.DataBind" method in the DetailsView's "ItemInserted"
event to refresh the GridView (connected to a SqlDataSource):
============================
protected void DetailsView1_ItemInserted(object sender,
DetailsViewInsertedEventArgs e)
{
GridView1.DataBind();
}
==================
If you are programmatically get data through DataSource control, you can
also programmatically call DataSource.Select method to get the new value
(as long as you haven't enable cache on the datasource control) and assign
it to the target display control. e.g
==================
protected void DetailsView1_ItemInserted(object sender,
DetailsViewInsertedEventArgs e)
{
DataView dv =
SqlDataSource1.Select(DataSourceSelectArguments.Em pty) as DataView;
lblCount.Text = dv[0][0].ToString();
}
================
Hope this helps. Please feel free to let me know if there is anything I
missed or if you have any other questions.
Sincerely,
Steven Cheng
Microsoft MSDN Online Support Lead
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