The PlaceHolder Control
The PlaceHolder control is used as a container to store server controls that are added to the Web page at runtime. The PlaceHolder control does not produce any visible output and is used only as a container for other controls on the Web page.
Example of PlaceHolder control
The PlaceHolder control is used as a container to store server controls that are added to the Web page at runtime. The PlaceHolder control does not produce any visible output and is used only as a container for other controls on the Web page.
Example of PlaceHolder control
<%@ Page Language="C#" %>
<!DOCTYPE html>
<script runat="server">
protected void Button1_Click(object sender, EventArgs e)
{
TextBox text = new TextBox();
text.Text = "This is the runtime textbox";
text.Style["width"] = "300px";
PlaceHolder1.Controls.Add(text);
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Button ID="Button1" runat="server" Text="Click to add TextBox" OnClick="Button1_Click" />
<br />
<br />
<br/>
<asp:PlaceHolder ID="PlaceHolder1" runat="server"></asp:PlaceHolder>
</div>
</form>
</body>
</html>
Output<!DOCTYPE html>
<script runat="server">
protected void Button1_Click(object sender, EventArgs e)
{
TextBox text = new TextBox();
text.Text = "This is the runtime textbox";
text.Style["width"] = "300px";
PlaceHolder1.Controls.Add(text);
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Button ID="Button1" runat="server" Text="Click to add TextBox" OnClick="Button1_Click" />
<br />
<br />
<br/>
<asp:PlaceHolder ID="PlaceHolder1" runat="server"></asp:PlaceHolder>
</div>
</form>
</body>
</html>
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