反对读取Label / Textbox.text的Sql数据绑定

Question

I am trying to bind sql data on textboxes against reading data from label my code is as below:

 string sql1 = " select openbal from AccountMast where accname='" + comboBox1.Text + "' and companyID='" + label4.Text + "'";
SqlDataAdapter dap1 = new SqlDataAdapter(sql1, con);
DataSet ds1 = new DataSet();
dap1.Fill(ds1);
for (int p = 0; p < ds1.Tables[0].Rows.Count; p++) 
{
  if (label11.Text == "Dr") 
{
  txtopenbaldr.Text = Convert.ToString(ds1.Tables[0].Rows[p]["openbal"]);

 }
  if (label11.Text == "Cr") 
  {
    txtopenbalcr.Text  = Convert.ToString(ds1.Tables[0].Rows[p]["openbal"]);
  }
}


//Label11 Bind by Sql.

string sql10 = " select obcat from AccountMast where accname='" + comboBox1.Text + "' and companyID='" + label4.Text + "'";
  SqlDataAdapter dap10 = new SqlDataAdapter(sql10, con);
  DataSet ds10 = new DataSet();
  dap10.Fill(ds10);

  for (int p = 0; p < ds10.Tables[0].Rows.Count; p++) 
  {
      label11.Text  = Convert.ToString(ds10.Tables[0].Rows[p]["obcat"]);
  }

The label11 bound by sql data and it should display text "Dr" OR "Cr" at a time.

but it's not working as the label11.text not support for bind the data onto textboxes

I have two textboxes as below:

Opening Balance/Debit                     Opening Balance/Credit
txtopenbaldr.Text                           txtopenbalcr.Text

There are two textboxes which can databind on above condition: Remember only one textbox should be bind as per condition.

I am trying the trick but it's fail. Suggest the solution.

Answer 1

I'm assuming that you simply appended the code for label11.text at the end of your message, but that in reality label11.text is assigned before you try to set txtopenbaldr.Text or txtopenbalcr.Text .

If that's the case, I would make sure that label11.Text actually has the value Dr or Cr , and not DR or CR , as the comparisons will be case-sensitive.