DataView Table property to get the source DataTable
DataViewTableProperty.aspx
<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Data" %>
<!DOCTYPE html>
<script runat="server">
protected void Button1_Click(object sender, System.EventArgs e)
{
DataTable dt = new DataTable();
dt.TableName = "Books";
DataColumn dc1 = new DataColumn();
dc1.ColumnName = "BookID";
dc1.DataType = typeof(int);
dc1.AllowDBNull = false;
dc1.Unique = true;
DataColumn dc2 = new DataColumn();
dc2.ColumnName = "Category";
dc2.DataType = typeof(string);
DataColumn dc3 = new DataColumn();
dc3.ColumnName = "BookName";
dc3.DataType = typeof(string);
DataColumn dc4 = new DataColumn();
dc4.ColumnName = "Author";
dc4.DataType = typeof(string);
dt.Columns.AddRange(new DataColumn[] { dc1, dc2, dc3, dc4 });
dt.Rows.Add(new object[] { 1, "Apple", "iPad 2 Pocket Guide, The", "Jeff Carlson" });
dt.Rows.Add(new object[] { 2, "Ajax", "Head First Ajax", "Rebecca M. Riordan" });
dt.Rows.Add(new object[] { 3, "Ajax", "Ajax: The Definitive Guide", "Anthony T. Holdener III" });
dt.AcceptChanges();
GridView1.DataSource = dt.DefaultView;
GridView1.DataBind();
//this line create a new DataView
DataView dView = new DataView(dt);
dView.RowFilter = "Category = 'Ajax'";
Label1.Text = "Here we create a new DataView with RowFilter expression (Category = 'Ajax')";
GridView2.DataSource = dView;
GridView2.DataBind();
DataTable dViewSourceTable = dView.Table;
Label2.Text = "Here we get the source DataTable of DataView" ;
GridView3.DataSource = dViewSourceTable;
GridView3.DataBind();
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>How to use DataView Table property to get the source DataTable in ado.net</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h2 style="color:DarkBlue; font-style:italic;">
How to use DataView Table property
<br /> to get the source DataTable in ado.net
</h2>
<hr width="575" align="left" color="CornFlowerBlue" />
<asp:GridView
ID="GridView1"
runat="server"
BorderColor="Snow"
ForeColor="Snow"
Width="575"
Font-Names="Courier"
>
<HeaderStyle BackColor="OliveDrab" Height="30" />
<RowStyle BackColor="LightCoral" />
<AlternatingRowStyle BackColor="LightSalmon" />
</asp:GridView>
<br />
<asp:Label
ID="Label1"
runat="server"
Font-Size="Large"
ForeColor="DodgerBlue"
Font-Italic="true"
>
</asp:Label>
<br />
<asp:GridView
ID="GridView2"
runat="server"
BorderColor="Snow"
ForeColor="Snow"
Width="575"
Font-Names="Courier"
>
<HeaderStyle BackColor="OliveDrab" Height="30" />
<RowStyle BackColor="LightCoral" />
<AlternatingRowStyle BackColor="LightSalmon" />
</asp:GridView>
<br />
<asp:Label
ID="Label2"
runat="server"
Font-Size="Large"
ForeColor="DodgerBlue"
Font-Italic="true"
>
</asp:Label>
<br />
<asp:GridView
ID="GridView3"
runat="server"
BorderColor="Snow"
ForeColor="Snow"
Width="575"
Font-Names="Courier"
>
<HeaderStyle BackColor="OliveDrab" Height="30" />
<RowStyle BackColor="LightCoral" />
<AlternatingRowStyle BackColor="LightSalmon" />
</asp:GridView>
<br />
<asp:Button
ID="Button1"
runat="server"
OnClick="Button1_Click"
Text="Populate GridView"
Height="45"
Font-Bold="true"
ForeColor="DodgerBlue"
/>
</div>
</form>
</body>
</html>
- How to add multiple columns at once to a DataTable
- How to count columns in a DataTable
- How to get maximum size of a column in a DataTable
- How to delete a row from a DataTable
- How to update all rows in a DataTable
- How to create a primary key for a DataTable
- How to copy one DataTable to another DataTable
- How to count rows in a DataView
- How to filter data in a DataView
- How to sort a DataView
