Add a new row to the DataView
DataViewAddNewMethod.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, "Joomla", "Joomla! 1.5 JavaScript jQuery", "Jose Argudo Blanco" });
dt.Rows.Add(new object[] { 2, "jQuery", "ASP.NET jQuery Cookbook", "Sonal Aneel Allana" });
dt.AcceptChanges();
GridView1.DataSource = dt.DefaultView;
GridView1.DataBind();
//this line create a new DataView
DataView dView = new DataView(dt);
dView.Sort = "BookName DESC" ;
Label1.Text = "Here we create a new DataView<br />" +
"and set the sort order (BookName DESC)";
GridView2.DataSource = dView;
GridView2.DataBind();
DataRowView drv = dView.AddNew();
drv["BookID"] = 3;
drv["Category"] = "Games";
drv["BookName"] = "Unity Game Development Essentials";
drv["Author"] = "Will Goldstone";
drv.EndEdit();
Label2.Text = "Here we add a new row to the DataView, Now the DataView is...";
GridView3.DataSource = dView;
GridView3.DataBind();
Label3.Text = "Now the source DataTable is...";
GridView4.DataSource = dt;
GridView4.DataBind();
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>How to use DataView AddNew Method to add a new row to the DataView in ado.net</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h2 style="color:DarkBlue; font-style:italic;">
How to use DataView AddNew Method
<br /> to add a new row to the DataView in ado.net
</h2>
<hr width="575" align="left" color="CornFlowerBlue" />
<asp:GridView
ID="GridView1"
runat="server"
BorderColor="Snow"
ForeColor="Snow"
Width="700"
Font-Names="Courier"
>
<HeaderStyle BackColor="DarkBlue" Height="30" />
<RowStyle BackColor="Orange" />
<AlternatingRowStyle BackColor="DarkOrange" />
</asp:GridView>
<asp:Label
ID="Label1"
runat="server"
Font-Size="Large"
ForeColor="DodgerBlue"
Font-Italic="true"
>
</asp:Label>
<asp:GridView
ID="GridView2"
runat="server"
BorderColor="Snow"
ForeColor="Snow"
Width="700"
Font-Names="Courier"
>
<HeaderStyle BackColor="CadetBlue" Height="30" />
<RowStyle BackColor="Orange" />
<AlternatingRowStyle BackColor="DarkOrange" />
</asp:GridView>
<asp:Label
ID="Label2"
runat="server"
Font-Size="Large"
ForeColor="DodgerBlue"
Font-Italic="true"
>
</asp:Label>
<asp:GridView
ID="GridView3"
runat="server"
BorderColor="Snow"
ForeColor="Snow"
Width="700"
Font-Names="Courier"
>
<HeaderStyle BackColor="CadetBlue" Height="30" />
<RowStyle BackColor="Orange" />
<AlternatingRowStyle BackColor="DarkOrange" />
</asp:GridView>
<asp:Label
ID="Label3"
runat="server"
Font-Size="Large"
ForeColor="DodgerBlue"
Font-Italic="true"
>
</asp:Label>
<asp:GridView
ID="GridView4"
runat="server"
BorderColor="Snow"
ForeColor="Snow"
Width="700"
Font-Names="Courier"
>
<HeaderStyle BackColor="DarkBlue" Height="30" />
<RowStyle BackColor="Orange" />
<AlternatingRowStyle BackColor="DarkOrange" />
</asp:GridView>
<asp:Button
ID="Button1"
runat="server"
OnClick="Button1_Click"
Text="Populate GridView"
Height="45"
Font-Bold="true"
ForeColor="DodgerBlue"
/>
</div>
</form>
</body>
</html>
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