Prevent selecting cell in DataGridView

I have little problem with DataGridView.

1. Drop DataGridView control on form and set property Visible to False

2. Add few rows and change visible to开发者_如何学Go True like code above.

private void Form1_Load(object sender, EventArgs e)
{
   dataGridView1.Rows.Add(new object[] { "1", "a" });
   dataGridView1.Rows.Add(new object[] { "2", "b" });
   dataGridView1.Rows.Add(new object[] { "3", "c" });
   dataGridView1.Rows.Add(new object[] { "4", "d" });

   dataGridView1.Visible = true;
               //^ this trigger selection

}

private void dataGridView1_SelectionChanged(object sender, EventArgs e)
{
   Console.WriteLine("selected");
}

After setting Visible to True, first cell is automatically selected and trigger SelectionChanged event.

How to prevent that?

EDIT. SOLUTION:

• Detach event handler:
• Set visible
• Clear selection
• Add handler

---

dataGridView1.SelectionChanged -= dataGridView1_SelectionChanged;
dataGridView1.Visible = true;
dataGridView1.ClearSelection();
dataGridView1.SelectionChanged += dataGridView1_SelectionChanged;

---

Your solution will prevent the event from firing, but I think the first cell will still be selected when the grid is shown. A simple call to ClearSelection() on the DataGridView should fix that.

Regards, Drew

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Set DataGridView's TabStop to false

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Instead of wiring and rewiring every time you alter the visible property, can you just not return from the method, if the visibility is false. That is:

private void dataGridView1_SelectionChanged(object sender, EventArgs e)
{
    if (!dataGridView1.Visible) return;
    Console.WriteLine("selected");
}