Hello Gary,
For those ASP.NET 2.0 DataBound controls, since it provides a new
DataSource control bound model(you can add the binding relation at
design-time or runtime), you should use the "DataSource ID" property instead
of the DataSource(whic h is dedicated for programmatic databinding) to
control the databound control's associated datasource.
So for your scenario, since you've choosed an objectdatasourc e for your
GridView at design-time, the DataSource control ID has been save in the
GridView's DataSourceID property. In sequential requests(includ e
postback), even if you manually change GridView.DataSo urce, Gridview will
still use the "DataSource ID" (the associated datasouce control) to populate
data collection. Thus, you can simply change Gridview.DataSo urceID to
empty string and call databind to clear it. e.g.
===============
protected void Button1_Click(o bject sender, EventArgs e)
{
GridView1.DataS ourceID = string.Empty;
GridView1.DataB ind();
}
=============== =
Hope this helps.
Sincerely,
Steven Cheng
Microsoft MSDN Online Support Lead
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