Home Library Learn Downloads Support Community
Sign in | United States - English | |
This topic has not yet been rated - Rate this topic

Control.Render Method

.NET Framework 4.5

[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]

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)
C#
C++
F#
VB
Copy 

protected internal virtual void Render(
	HtmlTextWriter writer
)

Parameters

writer
Type: System.Web.UI.HtmlTextWriter
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.

C#
VB
Copy 

[System.Security.Permissions.PermissionSet(System.Security.Permissions.SecurityAction.Demand, Name="FullTrust")] 
protected override void Render(HtmlTextWriter output) {
    if ( (HasControls()) && (Controls[0] is LiteralControl) ) {
        output.Write("<H2>Your Message: " + ((LiteralControl) Controls[0]).Text + "</H2>");
    }
}

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

Windows 8 Release Preview, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 SP2, Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Did you find this helpful?
(1500 characters remaining)