How to Bind a GridView from database

Question

How to bind a GridView?

I want to display my table data in a gridview.

I have createed SQL table EmpDetail with columns ID, Name, Salary D

Answer 1

In order to run this code, you need to replace connectionstring's credentials myServerName\myInstanceName, myDataBase, myUsername, myPassword with yours

using System.Data;   
using System.Data.SqlClient;

string sConnectionString = @"Data Source=myServerName\myInstanceName;Initial Catalog=myDataBase;User ID=myUsername;Password=myPassword;";

protected void Page_Load(object sender, EventArgs e){
    if(!IsPostBack)
        BindGridView();   
}

private void BindGridView() {             
    DataTable dt = new DataTable();           
    SqlConnection con = null;         

    try {
        string sQuery = "SELECT ID, Name, Salary FROM EmpDetail";

        SqlConnection con = new SqlConnection(sConnectionString);
        con.Open();
        SqlCommand cmd = new SqlCommand(sQuery, con); 
        SqlDataReader sdr = cmd.ExecuteReader();

        dt.Load(sdr);
        Gridview1.DataSource = dt;
        Gridview1.DataBind();
    }
    catch{ }
    finally{
        dt.Dispose();
        con.Close();
    }
}