<blockquote class="quote"><div class="op">Quote:</div> private void comboBox1_SelectedIndexChanged(object sender, EventArgs e) { DataTable dt = new DataTable(); string abc = cmbbankname.SelectedValue.ToString(); if (abc != "[select, select]" && abc != "select") { SqlConnection con = new SqlConnection(connection); con.Open(); SqlCommand cmd = new SqlCommand("SELECT [bank_Id],[bank_Accountno],bank_Accountype FROM bankdetails where bank_Id=@bank_Id", con); cmd.Parameters.AddWithValue("@bank_Id", cmbbankname.SelectedValue.ToString()); SqlDataAdapter sda = new SqlDataAdapter(cmd); sda.Fill(dt); if (dt.Rows.Count > 0) { txtAcntno.Text = dt.Rows[0]["bank_Accountno"].ToString(); cmbAcntype.Text = dt.Rows[0]["bank_Accountype"].ToString().Trim(); LoadDataGridView(); } } else if (cmbbankname.SelectedIndex == 0) { txtAcntno.Text = ""; cmbAcntype.SelectedIndex = 0; dgvwChqs.Rows.Clear(); } } private void LoadDataGridView() { SqlConnection con = new SqlConnection(connection); SqlCommand cmd = new SqlCommand("SELECT bank_Id,row_number() over(order by [bank_Id]) as SlNo,[bank_Chqstartno],bank_Chqlvscount,[bank_Chqendno],bank_Stat FROM [dbo].bankcheques where bank_Id=@bank_Id order by SlNo desc ", con); cmd.Parameters.AddWithValue("@bank_Id", cmbbankname.SelectedValue.ToString()); try { con.Open(); SqlDataAdapter da = new SqlDataAdapter(); da.SelectCommand = cmd; DataTable dt = new DataTable(); da.Fill(dt); dgvwChqs.DataSource = dt; con.Close(); } catch (Exception ex) { MessageBox.Show(ex.Message); } } </blockquote>
if (abc != "[select, select]" && abc != "select") { datagridview.DataSource = null; }
var
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