Question

How to Add Textfield column into Gridview in asp.net C# ?

I need to add a Text field Column at last of the Gridview, I create Data Table dynamically like this. I need to add text fields for comisson column

DataTable dt = new DataTable(); // create data table
            dt.Columns.Add("TransDate"); // create column 1
            dt.Columns.Add("ExHouse");// create column 2           
            dt.Columns.Add("RemName");
            dt.Columns.Add("Currency");
            dt.Columns.Add("Amount");
            dt.Columns.Add("LKRAmount");
            //dt.Columns.Add(new DataColumn("Comission", typeof(string))); 
            dt.Columns.Add("Comission");
            dt.Columns.Add("ValueDate");

            DataRow dr = dt.NewRow(); // Create new Row
            TextBox comi=new TextBox();
            dr["TransDate"] = RemittanceToSelectedTable.TransDate; 
            dr["ExHouse"] = RemittanceToSelectedTable.ExHouse; //add data to coolumn no2
            dr["RemName"] = RemittanceToSelectedTable.RemName;
            dr["Currency"] = RemittanceToSelectedTable.Currency;
            dr["Amount"] = RemittanceToSelectedTable.Amount;
            dr["LKRAmount"] = RemittanceToSelectedTable.LKRAmount;

            dr["ValueDate"] = RemittanceToSelectedTable.ValueDate;
            dr["Comission"] = comi;

            aa.Add((string)dr["TransDate"]); 
            ab.Add((string)dr["ExHouse"]);
            ac.Add((string)dr["RemName"]);
            ad.Add((string)dr["Currency"]);
            ae.Add((string)dr["Amount"]);
            af.Add((string)dr["LKRAmount"]);
          //  ah.Add((string)dr["Comission"]);
            ag.Add((string)dr["ValueDate"]); 


            for (i = 0; i < ag.Count; i++)
            {
                dt.Rows.Add(aa[i], ab[i], ac[i], ad[i], ae[i], af[i], ag[i]); // add rows to data table
            }

            return dt;

Thanks !

Answer 1

To add rows to the DataTable you could use.

DataRow dr = dt.NewRow(); // Create new Row
dr["TransDate"] = RemittanceToSelectedTable.TransDate; 
dr["ExHouse"] = RemittanceToSelectedTable.ExHouse; //add data to coolumn no2
dr["RemName"] = RemittanceToSelectedTable.RemName;
dr["Currency"] = RemittanceToSelectedTable.Currency;
dr["Amount"] = RemittanceToSelectedTable.Amount;
dr["LKRAmount"] = RemittanceToSelectedTable.LKRAmount;
dr["ValueDate"] = RemittanceToSelectedTable.ValueDate;
dr["Comission"] = 0; //default value for commission
dt.Rows.Add(dr);

Then to display this your commission textbox, you do not create a textBox in the data. That is the control where it will be presented. Your data will be text, int, float.

<asp:BoundField HeaderText="Comission" DataField="Comission"></asp:BoundField>