GetLastError

Description

Returns the error code of the last database error that occurred in the Web DataWindow server component.

Applies to

DataWindow type	Method applies to
Web	Server component

Syntax

Web DataWindow server component

long dwcontrol.GetLastError ( )

Argument	Description
dwcontrol	A reference to the DataWindow server component

Returns

Returns a numeric error code for the last database error that occurred.

If dwcontrol is null, the method returns null.

Usage

Call GetLastError and GetLastErrorString to get information about database errors that caused SetAction, Update, Retrieve, and RetrieveEx to return –1.

Examples

Example 1

This code in a page server script calls Retrieve for the Web DataWindow server component called dwComponent and gets information about the database error if Retrieve fails:

retVal = dwComponent.Retrieve( );

if (retVal < 0) {

		Response.Write("Retrieval error: "

			+ dwComponent.GetLastError( )

			+ "<BR>"

			+ dwComponent.GetLastErrorString( )

			+ "<BR>");