Displaying data automatically into the textboxes

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sir i am using window form and c#, i want to insert id into the textbox and rest of data from the database should be automatic display.
sir how to do it without using datagridview control.
please give me some examples

What I have tried:

public void selectdata()
       {

           string connection = ConfigurationManager.ConnectionStrings["EmployeeContext"].ConnectionString;
           using (SqlConnection con = new SqlConnection(connection))
           {
               con.Open();
               using (SqlCommand cmd = new SqlCommand("select ITEM_NAME from ITEMOLD$ where ITEM_CODE='" + txtitemcode.Text + "'", con))
               {
                   SqlDataReader dr = cmd.ExecuteReader();
                   while (dr.Read())
                   {
                       txtitemname.Text = Convert.ToString(dr["ITEM_NAME"]);
                       txtpartycode.Text = Convert.ToString(dr["PARTY_CODE"]);
                       txthsnno.Text = Convert.ToString(dr["HSNNO"]);


                       txtsalesprice.Text = Convert.ToString(dr["SALE_PRICE"]);
                       txttotal.Text = Convert.ToString(dr["DISC_AMT"]);
                       txtcgst.Text = Convert.ToString(dr["CGST"]);
                       txtigstdata.Text = Convert.ToString(dr["IGST"]);


                   }

               }
           }
       }

Posted 29-Jun-17 0:21am

faizy001

Updated 29-Jun-17 1:38am

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Karthik_Mahalingam · Answer 1 · 2017-06-29T01:38:00

Column names missing in the select query

select ITEM_NAME ,PARTY_CODE ,HSNNO,SALE_PRICE,DISC_AMT,CGST,IGST from ITEMOLD$

Formatting the sql Query string is vulnerable to SQL Injection[^] attacks
always use Parameterized queries to prevent SQL Injection Attacks in SQL Server[^]

using (SqlCommand cmd = new SqlCommand("select ITEM_NAME ,PARTY_CODE ,HSNNO,SALE_PRICE,DISC_AMT,CGST,IGST from ITEMOLD$  where ITEM_CODE=@code ", con))
           {
               cmd.Parameters.AddWithValue("@code", txtitemcode.Text.Trim());