how to check whether gridview's row is selected or not in c#.net windows application

I want to know how to check whether a gridview's row got selected or not. I am working on windows application.

I want to put a if condition ie if a particular row ge开发者_JAVA百科ts selected then fill the textbox with the correspoding cell value.

I am just not getting the way how to give the condition in the if clause.

Handle the DataGridView.SelectionChanged event. Use the DataGridView.SelectedRows property to get the selected rows collection.

private void dataGridView_SelectionChanged(object sender, EventArgs e)
{
    // Update the text of TextBox controls.
    textBox1.Text = dataGridView.SelectedRows[0].Cells[1].Value.ToString();
    textBox2.Text = dataGridView.SelectedRows[0].Cells[2].Value.ToString();
    ....
}

Check DataGridViewRow.Selected property.

if (dataGridView.Rows[rowIndex].Selected)
{
    // Do something ..
}

Check the selected property of DataGridViewRow, it returns true for selected else false.

bool isSelected = dataGridView1.Rows[e.RowIndex].Selected;

You can subscribe to the SelectionChanged event of the control and iterate through each selected row if multi-selection is enabled or just the first one if single-row selection only.

private void MyGridView_SelectionChanged(object sender, EventArgs e)
{
      for (int i = 0; i < MyGridView.SelectedRows.Count; i++)
      {
          MyTextBox.Text = MyGridView.SelectedRows[i].Cells[0].Value.ToString(); //assuming column 0 is the cell you're looking for

          // do your other stuff
      }
}

More information can be found on the SelectedRows property.