private void button1_Click(object sender, EventArgs e)
{
string costring = connection();
string MyQuery = "select SUM(balance) from dbo.KmtAccounts where registernumber='" + txtRegNo.Text + "'";
SqlConnection conn = new SqlConnection(costring);
SqlCommand cmd = new SqlCommand(MyQuery, conn);
conn.Open();
SqlDataReader reader = cmd.ExecuteReader();
lblResult.Text =
}
这感觉就像一个作业问题一样被剪切粘贴。 –
现在工作。 private void button1_Click(object sender,EventArgs e) { string costring = connection(); string MyQuery =“select dbo.KmtAccounts SUM(balance)where registernumber ='”+ txtRegNo.Text +“'”; SqlConnection conn = new SqlConnection(costring); SqlCommand cmd = new SqlCommand(MyQuery,conn); conn.Open(); lblResult.Text = Convert.ToString(cmd.ExecuteScalar()); } – Naveen