How to remove (delete) a DataRow at the specified index from DataTable in ado.net
RemoveDataRowFromDataTable.aspx
- <%@ Page Language="C#" AutoEventWireup="true" %>
- <%@ Import Namespace="System.Data" %>
-
- >
<script runat="server">
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 = "BookName";
dc2.DataType = typeof(string);
DataColumn dc3 = new DataColumn();
dc3.ColumnName = "Author";
dc3.DataType = typeof(string);
dt.Columns.AddRange(new DataColumn[] { dc1,dc2,dc3 });
dt.Rows.Add(new object[] { 1, "Flash 8 Cookbook", "Joey Lott" });
dt.Rows.Add(new object[] { 2, "Flash 8: The Missing Manual", "E. A. Vander Veer" });
dt.Rows.Add(new object[] { 3, "Flash Out of the Box", "Robert Hoekman, Jr." });
GridView1.DataSource = dt;
GridView1.DataBind();
//this line remove the DataRow from DataTable which index is 2
dt.Rows.RemoveAt(2);
Label1.Text = "After delete the DataRow which index is 2";
GridView2.DataSource = dt;
GridView2.DataBind();
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>How to remove (delete) a DataRow at the specified index from DataTable in ado.net</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h2 style="color:DarkBlue; font-style:italic;">
How to remove (delete) a DataRow
<br /> at the specified index from DataTable in ado.net
</h2>
<hr width="500" align="left" color="CornFlowerBlue" />
<asp:GridView
ID="GridView1"
runat="server"
BorderColor="Snow"
ForeColor="Snow"
Width="550"
>
<HeaderStyle BackColor="OliveDrab" Height="35" />
<RowStyle BackColor="DarkOrchid" />
<AlternatingRowStyle BackColor="MediumOrchid" />
</asp:GridView>
<br />
<asp:Label
ID="Label1"
runat="server"
Font-Size="Medium"
ForeColor="SeaGreen"
>
</asp:Label>
<br /><br />
<asp:GridView
ID="GridView2"
runat="server"
BorderColor="Snow"
ForeColor="Snow"
Width="550"
>
<HeaderStyle BackColor="OliveDrab" Height="35" />
<RowStyle BackColor="DarkOrchid" />
<AlternatingRowStyle BackColor="MediumOrchid" />
</asp:GridView>
<asp:Button
ID="Button1"
runat="server"
OnClick="Button1_Click"
Text="Populate GridView"
Height="45"
Font-Bold="true"
ForeColor="DarkBlue"
/>
</div>
</form>
</body>
</html>
