Control.Render Method

Sends server control content to a provided HtmlTextWriter object, which writes the content to be rendered on the client.

Namespace: System.Web.UI
Assembly: System.Web (in system.web.dll)

'Declaration
Protected Friend Overridable Sub Render ( _
	writer As HtmlTextWriter _
)
'Usage
Dim writer As HtmlTextWriter

Me.Render(writer)
protected void Render (
	HtmlTextWriter writer
)
protected internal function Render (
	writer : HtmlTextWriter
)
Not applicable.

Parameters

writer

The HtmlTextWriter object that receives the server control content.

When developing custom server controls, you can override this method to generate content for an ASP.NET page.

The following code example demonstrates overriding the Render method. The HasControls method is used to determine whether the server control has any child controls stored in its ControlCollection object, which is accessible through the Control.Controls property. If HasControls returns true and the first server control in the collection is literal text, then the literal text is appended to an HTML string.

<System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.Demand, Name:="FullTrust")> _
Protected Overrides Sub Render(Output As HtmlTextWriter)
    If HasControls() And TypeOf Controls(0) Is LiteralControl
        Dim Ctrl As LiteralControl = CType(Controls(0), LiteralControl)
        Output.Write("<H2>Your Message: " & Ctrl.Text & "</H2>")
    End If
End Sub

Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

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