The following code example demonstrates how to query the value of the PerformSubstitution property. In this example, the WebResourceAttribute attribute of the HTML file Help.htm is defined with the PerformSubstitution property set to true.
This code example is part of a larger example provided for the WebResourceAttribute class.
<%@ Page Language="VB" %>
<%@ Register TagPrefix="AspNetSamples" Namespace="Samples.AspNet.VB.Controls" Assembly="Samples.AspNet.VB.Controls" %>
<%@ Import Namespace="System.Reflection" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
' Get the assembly metatdata.
Dim clsType As Type = GetType(MyCustomControl)
Dim a As Assembly = clsType.Assembly
For Each attr As Attribute In Attribute.GetCustomAttributes(a)
'Check for WebResource attributes.
If attr.GetType() Is GetType(WebResourceAttribute) Then
Dim wra As WebResourceAttribute = CType(attr, WebResourceAttribute)
Response.Write("Resource in the assembly: " & wra.WebResource.ToString() & _
" with ContentType = " & wra.ContentType.ToString() & _
" and PerformsSubstitution = " & wra.PerformSubstitution.ToString() & "</br>")
End If
Next attr
End Sub
</script>
<html >
<head runat="server">
<title>WebResourceAttribute Example</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<AspNetSamples:MyCustomControl id="MyCustomControl1" runat="server">
</AspNetSamples:MyCustomControl>
</div>
</form>
</body>
</html>
<%@ Page Language="C#" %>
<%@ Register TagPrefix="AspNetSamples" Namespace="Samples.AspNet.CS.Controls" Assembly="Samples.AspNet.CS.Controls" %>
<%@ Import Namespace="System.Reflection" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void Page_Load(object sender, EventArgs e)
{
// Get the assembly metatdata.
Type clsType = typeof(MyCustomControl);
Assembly a = clsType.Assembly;
// Iterate through the attributes for the assembly.
foreach (Attribute attr in Attribute.GetCustomAttributes(a))
{
//Check for WebResource attributes.
if (attr.GetType() == typeof(WebResourceAttribute))
{
WebResourceAttribute wra = (WebResourceAttribute)attr;
Response.Write("Resource in the assembly: " + wra.WebResource.ToString() +
" with ContentType = " + wra.ContentType.ToString() +
" and PerformsSubstitution = " + wra.PerformSubstitution.ToString() + "</br>");
}
}
}
</script>
<html >
<head runat="server">
<title>WebResourceAttribute Example</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<AspNetSamples:MyCustomControl id="MyCustomControl1" runat="server">
</AspNetSamples:MyCustomControl>
</div>
</form>
</body>
</html>
An example of an HTML Web resource that could be used in this example is shown next. Note that the WebResource syntax is used when you set the PerformSubstitution property to true for the resource.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html >
<head>
<title>Included Help Page</title>
</head>
<body>
<div>
<img alt="help image" src=<% = WebResource("image1.jpg") %> />
Included help file.
</div>
</body>
</html>