WebPermissionAttribute.ConnectPattern Property


The .NET API Reference documentation has a new home. Visit the .NET API Browser on docs.microsoft.com to see the new experience.

Gets or sets a regular expression pattern that describes the URI connection controlled by the current WebPermissionAttribute.

Namespace:   System.Net
Assembly:  System (in System.dll)

public string ConnectPattern { get; set; }

Property Value

Type: System.String

A string containing a regular expression pattern that describes the URI connection controlled by this WebPermissionAttribute.

Exception Condition

ConnectPattern is not null when you attempt to set the value. If you wish to specify more than one connect URI, use an additional attribute declaration statement.

When applying WebPermissionAttribute to your class, this property specifies what regular expression connect string is accepted for use within your class. This property is write-once.

The following example demonstrates how to use WebPermissionAttribute to specify an allowable ConnectPattern.

  // Set the WebPermissionAttribute  ConnectPattern property.
  [WebPermission(SecurityAction.Deny, ConnectPattern=@"http://www\.contoso\.com/Private/.*")]

public static void CheckConnectPermission(string uriToCheck) 
	WebPermission permissionToCheck = new WebPermission();
	permissionToCheck.AddPermission(NetworkAccess.Connect, uriToCheck);

public static void demoDenySite() {
	//Pass the security check.
	Console.WriteLine("Public page has passed Connect permission check");

		//Throw a SecurityException.
		Console.WriteLine("This line will not be printed");
	catch (SecurityException e) 
		Console.WriteLine("Expected exception" + e.Message);


.NET Framework
Available since 1.1
Return to top