how to bind database data into datatable? and datatable bind in gridview? in asp.net with c# language with example

Question

how to bind database data into datatable? and datatable bind in gridview? in asp.net with c# language with example?

Satyapriya Nayak · Answer

Show data in Gridview using dataset, datatable and data reader. Untitled Page Text="Using Dataset" /> Text="Using Datatable" /> Text="Using Datareader" /> using System; using System.Configuration; using System.Data; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq; using System.Data.OleDb; public partial class _Default : System.Web.UI.Page { OleDbConnection con; OleDbCommand com; OleDbDataAdapter oda; DataSet ds; DataTable dataTable; protected void Button1_Click(object sender, EventArgs e) { con = new OleDbConnection("Provider = Microsoft.Jet.OLEDB.4.0; Data Source = D:\mydb.mdb"); com = new OleDbCommand("Select * from emp", con); con.Open(); oda = new OleDbDataAdapter(com); ds = new DataSet(); oda.Fill(ds, "emp"); con.Close(); GridView1.DataMember = "emp"; GridView1.DataSource = ds; GridView1.DataBind(); } protected void Button2_Click(object sender, EventArgs e) { con = new OleDbConnection("Provider = Microsoft.Jet.OLEDB.4.0; Data Source = D:\mydb.mdb"); dataTable = new DataTable(); com = new OleDbCommand(); com.Connection = con; con.Open(); com.CommandText = "Select * from emp"; oda = new OleDbDataAdapter(com); oda.Fill(dataTable); con.Close(); GridView1.DataSource = dataTable; GridView1.DataMember = "emp"; GridView1.DataBind(); } protected void Button3_Click(object sender, EventArgs e) { con = new OleDbConnection("Provider = Microsoft.Jet.OLEDB.4.0; Data Source = D:\mydb.mdb"); com = new OleDbCommand("Select * from emp", con); con.Open(); OleDbDataReader reader; reader = com.ExecuteReader(); GridView1.DataMember = "emp"; GridView1.DataSource = reader; GridView1.DataBind(); reader.Close(); con.Close(); } }

how to bind database data into datatable? and datatable bind in gridview? in asp.net with c# language with example

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