Event for clicking on row headers in a DataGridView

Question

What is an event that exclusively handles mouse clicks made only in row headers of a DataGridView?

If not, would there be an alternative to handling this type of event?

Answer 1

Create a new Winforms project and copy the following code: -

public partial class Form1 : Form { public Form1() { var list = new List<Books> { new Books() {Title = "Harry Potter", TotalRating = 5}, new Books() {Title = "C#", TotalRating = 5} }; InitializeComponent(); dataGridView1.AutoGenerateColumns = true; dataGridView1.DataSource = list; dataGridView1.RowHeaderMouseClick += new DataGridViewCellMouseEventHandler(OnRowHeaderMouseClick); } void OnRowHeaderMouseClick(object sender, DataGridViewCellMouseEventArgs e) { MessageBox.Show("Clicked RowHeader!"); } } 

Answer 2

You can get the row header with the following code:

 Private Sub dataGridView1_RowHeaderMouseClick( _ ByVal sender As Object, ByVal e As DataGridViewCellMouseEventArgs) _ Handles dataGridView1.RowHeaderMouseClick Me.dataGridView1.SelectionMode = _ DataGridViewSelectionMode.RowHeaderSelect Me.dataGridView1.Rows(e.RowIndex).Selected = True End Sub 

or

 void dataGridView1_CellDoubleClick(object sender, DataGridViewCellEventArgs e) { // // Do something on double click, except when on the header. // if (e.RowIndex == -1) { //this is row header... some code here. } Code... } 

Answer 3

There are two events related to clicking on row headers.

• RowHeaderMouseClick
• RowHeaderMouseDoubleClick

Answer 4

 private void dataGridView1_RowHeaderMouseClick(object sender, DataGridViewCellMouseEventArgs e) { try { DataGridViewRow dr = dataGridView1.SelectedRows[0]; this.Hide(); frmStock frm2 = new frmStock(); frm2.Show(); frm2.txtStockID.Text = dr.Cells[0].Value.ToString(); frm2.txtConfigID.Text = dr.Cells[1].Value.ToString(); frm2.txtProductname.Text = dr.Cells[2].Value.ToString(); frm2.txtFeatures.Text = dr.Cells[3].Value.ToString(); frm2.txtPrice.Text = dr.Cells[4].Value.ToString(); frm2.txtQty.Text = dr.Cells[5].Value.ToString(); frm2.txtTotalPrice.Text = dr.Cells[6].Value.ToString(); frm2.dtpStockDate.Text = dr.Cells[7].Value.ToString(); frm2.btnUpdate.Enabled = true; frm2.btnDelete.Enabled = true; frm2.btnSave.Enabled = false; frm2.label8.Text = label1.Text; } catch (Exception ex) { MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); } }