Question

I want to create a GridView Control in Code Behind.

Data is fetched from database table.

My code is:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;

public partial class gv1 : System.Web.UI.Page
{
    SqlConnection cn;
   SqlCommand cmd;
   DataSet ds;
   SqlDataAdapter da;

   protected void Page_Load(object sender, EventArgs e)
  {
       cn = new SqlConnection("Data Source=AMIR-PC\\MOHEMMAD;Initial Catalog=CRM_InvestPlus;Integrated Security=True");

}
protected void Button1_Click(object sender, EventArgs e)
{
    cn.Open();
    cmd = new SqlCommand("Select * from Customer_Master", cn);
    da = new SqlDataAdapter(cmd);
    ds = new DataSet();
    da.Fill(ds);
    cn.Close();

    GridView gr1 = new GridView();

    for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
    {
        GridViewRow row = new GridViewRow(i, i, DataControlRowType.DataRow,  DataControlRowState.Normal);
        TableCell cell1 = new TableCell();
        TableCell cell2 = new TableCell();
        cell1.Text = ds.Tables[0].Rows[i][0].ToString();
        cell2.Text = ds.Tables[0].Rows[i][0].ToString();
        row.Cells.Add(cell1);
        row.Cells.Add(cell2);
        gr1.Controls[0].Controls.AddAt(i, row);


      }
        this.Controls.Add(gr1);
   }
}

But when I Run the code error occurs as follows:

ArgumentOutOfRangeException was unhandled by user at the line of code showing

gr1.Controls[0].Controls.AddAt(i,row);

Please help..
Thanks in advance..

Answer 1

I think this occurs because you are adding to Control[0] that is not set anywhere. Change it like this and see if it helps:

gr1.Controls.AddAt(i, row);

Ok this is how it should like:

First when you are initializing your grid view you have to add to it Table

var gv = new GridView();
var t = new Table();
gv.Controls.Add(t);

Then you can add you row the way you were doing

gv.Controls[0].AddAt(i, row);

Please try this way 🙂