Toggling row selection in a DataGridView...

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  13 years ago

  by jjrgutierrez

  Juan José

  , Spain

  Joined 13 years ago

  Hello Experts,

  I have another problem for which I hope that you guys can provide me a solution. I have a datagridview control on my Windows form application. I would want to toggle the row selection when the user clicks on the row i.e., selected row to unselected row and vice versa.

  I have tried the following code in the dataGridView1_CellClick event, but it does not work:

          private void dgvDataTable_CellClick(object sender, DataGridViewCellMouseEventArgs e)
          {

              //e.RowIndex will give the index of the row clicked on by the user...

              if (dgvDataTable.Rows[e.RowIndex].Selected)
              {
                  dgvDataTable.Rows[e.RowIndex].Selected = false;
              }
              else
              {
                  dgvDataTable.Rows[e.RowIndex].Selected = true;
              }
          }

  Have also tried the above code in the  dataGridView1_CellMouseDown event and it does not work.

          private void dgvDataTable_CellMouseDown(object sender, DataGridViewCellMouseEventArgs e)
          {
              if (dgvDataTable.Rows[e.RowIndex].Selected)
              {
                  dgvDataTable.Rows[e.RowIndex].Selected = false;
              }
              else
              {
                  dgvDataTable.Rows[e.RowIndex].Selected = true;
              }
          }
  

   

  Could somebody please help me out with it?

  Thanks in advance,

  Abhisheik. 

   

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• • Reply

  13 years ago

  by CyberSoftHari

  Hariharan

  , India

  Joined 14 years ago

  Write code in CellClick or CellMouseDown otherwise both methods will work and your condition replies same answer.

          private void dgvDataTable_CellClick(object sender, DataGridViewCellMouseEventArgs e)
          {

              //e.RowIndex will give the index of the row clicked on by the user...

              if (dgvDataTable.Rows[e.RowIndex].Selected)
                  dgvDataTable.Rows[e.RowIndex].Selected = false;
              else
                  dgvDataTable.Rows[e.RowIndex].Selected = true;
          }

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