Hey Guys,

the underlying problem is a timing problem with the DataBind() Method.

Once you've clicked the update button of your list. The page will be
postbacked. Normally most of us use the Page_Load-Method to invoke
DataBind(). This causes the gridview to refresh databinding for the
boundcolumns.

So, afterwards you enter your updating method e. g.
GridView2_RowUpdating(...). At this point you've lost the game because
of data-re-binding :-)

Try to do it this way (see following code snippet)

Happy .NETing

Chrischi



namespace MyWebTest
{
public partial class WebForm1 : System.Web.UI.Page
{
MyWebTest.DataSet1TableAdapters.dbo_ProductsTableA dapter adp;
MyWebTest.DataSet1.dbo_ProductsDataTable dtb;

protected void Page_Load(object sender, EventArgs e)
{
if (this.IsPostBack)
{
dtb =
(MyWebTest.DataSet1.dbo_ProductsDataTable)this.Ses sion["dtb"];
adp =
(MyWebTest.DataSet1TableAdapters.dbo_ProductsTable Adapter)this.Session["
adp"];
}
else
{
adp = new
MyWebTest.DataSet1TableAdapters.dbo_ProductsTableA dapter();
dtb = new DataSet1.dbo_ProductsDataTable();

dtb = adp.GetData();
this.Session.Add("dtb", dtb);
this.Session.Add("adp", adp);

BindGrid();
}

}

private void BindGrid()
{
GridView2.DataSource = dtb;
GridView2.DataBind();
}

protected void GridView2_RowEditing(object sender,
GridViewEditEventArgs e)
{
this.Session.Add("index", e.NewEditIndex);
GridView2.EditIndex = e.NewEditIndex;
String country =
GridView2.Rows[e.NewEditIndex].Cells[1].Text;
BindGrid();
}

protected void GridView2_RowUpdating(object sender,
GridViewUpdateEventArgs e)
{
DataControlFieldCell cell =
GridView2.Rows[e.RowIndex].Cells[1] as DataControlFieldCell;

GridView2.Columns[0].ExtractValuesFromCell(e.Keys, cell,
DataControlRowState.Normal, true);

cell = GridView2.Rows[e.RowIndex].Cells[1] as
DataControlFieldCell;

GridView2.Columns[0].ExtractValuesFromCell(e.NewValues,
cell, DataControlRowState.Edit, false);

// Show something
foreach (string key in e.Keys.Keys)
{
this.Response.Write("<br/>" + key + ": " + e.Keys[key]);
}

foreach (string key in e.NewValues.Keys)
{
this.Response.Write("<br/>" + key + ": " +
e.NewValues[key]);
}

foreach (string key in e.NewValues.Keys)
{
dtb.Rows[e.RowIndex][key] = e.NewValues[key];
}

adp.Update(dtb);

}


}
}

*** Sent via Developersdex http://www.developersdex.com ***

Thanks Christoph. I will try that.

After researching for so long for a solution to this problem, I was able to
do it without problem with datagrid. I think this is a BUG of gridview.

Will Microsoft provide a fix for that?



"Christoph Khodja" wrote: