I do it like this:
if (e.Row.Cells[3].Text != null && e.Row.Cells[3].Text != " "
&& e.Row.Cells[3].Text != "")
{
e.Row.Cells[3].Attributes.Add("readonly", "true");
}
But it doesn't work. I need to set readonly property in true when cell is empty or contains " ".
There is no direct way to set Gridview column to readonly.
But You can set the controls to readonly that are in that column in RowDataBound event of your Gridivew. e.g.
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowState == DataControlRowState.Edit || e.Row.RowState == DataControlRowState.Alternate)
{
TextBox txt = (TextBox)e.Row.FindControl("ControlID");
txt.ReadOnly = true;
}
}
For bound fields you can assume Controls(0) is the control you want.
Therefore this works:
Protected Sub DropDownListNoVariation_SelectedIndexChanged(sender As Object, e As EventArgs)
Dim sourceGridViewRow As GridViewRow
Dim sourceDropDown As DropDownList
Dim TargetTextBox As TextBox
sourceGridViewRow = sender.Parent.Parent
sourceDropDown = sender
If sourceDropDown.Text = "True" Then
TargetTextBox = sourceGridViewRow.Cells(4).Controls(0)
TargetTextBox.ReadOnly = True
TargetTextBox = sourceGridViewRow.Cells(5).Controls(0)
TargetTextBox.ReadOnly = True
Else
TargetTextBox = sourceGridViewRow.Cells(4).Controls(0)
TargetTextBox.ReadOnly = False
TargetTextBox = sourceGridViewRow.Cells(5).Controls(0)
TargetTextBox.ReadOnly = False
End If
End Sub
Would this work?
if (e.Row.Cells[3].Text != null && e.Row.Cells[3].Text != " " && e.Row.Cells[3].Text != "")
{
e.Row.Cells[3].ReadOnly = true;
}
It sure seems as though the BoundField has a ReadOnly property. But I am not sure now if the e.Row.Cells[3] is of BoundField type. Maybe you might have to cast it to BoundField
