從選定的數據網格視圖中刪除

Question

private void gridselect(object sender, DataGridViewCellEventArgs e)
{
    chooseAnyRow = e.RowIndex;
    DataGridViewRow row = bndisplay.Rows[chooseAnyRow];
    textBox1.Text = row.Cells[5].Value.ToString();
}

private void button7_Click(object sender, EventArgs e)
{
    DataGridViewRow deleterow = bndisplay.Rows[chooseAnyRow];

    deleterow.Cells[5].Value = textBox1.Text;

    /*com = con.CreateCommand();
    com.CommandType = CommandType.Text;
    com.CommandText = "delete from candidateRegistration where icnumber = '' " + textBox1.Text;
    */

    SqlConnection con;
    SqlCommand com;
    string connstring = @"Data Source=dasranrajlui\sqlexpress;Initial Catalog=SESoriginal;Integrated Security=True";

    con = new SqlConnection(connstring);
    con.Open();
    string sqlstr = "delete from candidateRegistration where icnumber= " + textBox1.Text;

    sqlstr = sqlstr + "" + textBox1.Text + ")";

    com = new SqlCommand(sqlstr, con);

    try
    {
        com.ExecuteNonQuery();
        MessageBox.Show("deleted...");

        textBox1.Text = null;
    }

    catch (Exception EX)
    {
        MessageBox.Show(EX + "NOT deleted");
    }

    finally
    {
        con.Close();
    }

}

好的，我已經編輯了代碼，但現在我收到了這個錯誤：

System.Data.SqlClient.SqlException (0x801319404)：')' 附近的語法不正確.....

Answer 1

您沒有名為“com”的對象聲明更改com.ExecuteNonQuery(); 到comm.ExecuteNonQuery();

Answer 2

參考這個。它可能對你有幫助。

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