CODEWITHSUNDEEP
c#.netwinformsdatagridview
Elmex
Elmex

Reputation: 3361

Setting cell.ReadOnly has no effect

I have a DataGridView, where I want to disable some cells/rows with setting ReadOnly = true.

What could be the reason that sometimes this has no effect and the cells/rows are still editable?

Are there other possibilities to prevent editing specific rows or cells? Is it possible to prevent clicking or entering a cell?

Upvotes: 13

Views: 14825

Answers (3)

Ryan Lutz
Ryan Lutz

Reputation: 525

Try running a datagridview.Refresh() after setting the readonly value to true.

Upvotes: 1

stuartd
stuartd

Reputation: 73243

One possibility is that if you set the DataGridView's ReadOnly property (in code), then the columns' ReadOnly needs to be reset:

this.dgv.Columns[0].ReadOnly = true; 
this.dgv.ReadOnly = false; 
// Need to reset the column's ReadOnly state:
this.dgv.Columns[0].ReadOnly = true;

You can also set whole rows as ReadOnly

Upvotes: 0

SwDevMan81
SwDevMan81

Reputation: 49978

You could prevent editing with the CellBeginEdit event. If you dont want the cell to be edited, you can cancel the edit. For example, if you only want the first column to be editable, you can do this:

private void dataGridView1_CellBeginEdit(object sender, 
   DataGridViewCellCancelEventArgs e)
{
   if (e.ColumnIndex != 0) 
   { 
      e.Cancel = true;
   }
}

Upvotes: 23

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