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how do i set the value of a dropdownlist that is in a gridview?

Amien90 asked
Last Modified: 2012-06-27
Protected Sub gridview1_rowdatabound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound

        Dim ddlAccount As DropDownList = CType(e.Row.FindControl("ddlAccount"), DropDownList)
           ddlAccount.SelectedValue = ddlAccount.Items.FindByText("TEST").Value

    End Sub

i get this error : Object reference not set to an instance of an object.

TEST is in my dropdownlist as selection option
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ok .. i found what  the issue is, but i don't know how to solve it.

if i put the above code right after the databind .. a certain dropdownlist is filled, but not the correct row.

what i do now, i populating a datatable and at the end:
 GridView1.DataSource = dt

but i think there is a different approach on gridviews with dropdownlist in them.

Dim ddlAccount As DropDownList = GridView1.Rows(1).Cells(1).FindControl("ddlAccount")
 ddlAccount.SelectedValue = ddlAccount.Items.FindByText("TEST").Value

this works .. but i need this in my loop while creating the datatable .. but that's impossible, cause the gridview is not bound yet ..
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