IAppHostWritableAdminManager::CommitChanges Method

Article
03/09/2018

Commits configuration changes to the IIS 7 configuration system.

Syntax

HRESULT CommitChanges(  
);

Parameters

This method takes no parameters.

Return Value

An HRESULT. Possible values include, but are not limited to, those in the following table.

Value	Description
S_OK	Indicates that the operation was successful.

Example

The following code example demonstrates how to change the configuration and then use the CommitChanges method to commit those changes to the IIS 7 configuration system.

#pragma once

#include <stdio.h>
#include <string.h>
#include <ahadmin.h>

int main()
{
    IAppHostWritableAdminManager *    pWMgr       = NULL;
    IAppHostElement              *    pElement    = NULL;
    
    HRESULT  hr                   = S_OK;
    BSTR     bstrConfigCommitPath = SysAllocString(L"MACHINE/WEBROOT/APPHOST");
    BSTR     bstrSectionName      = SysAllocString(L"system.applicationHost/sites");
    BSTR     bstrConfigSource     = SysAllocString(L"sites.config");
    BSTR     bstrConfigSourceAttr = SysAllocString(L"configSource");
    VARIANT  vtConfigSource;
    vtConfigSource.vt             = VT_BSTR;
    vtConfigSource.bstrVal        = bstrConfigSource;

    // Initialize
    hr = CoInitializeEx( NULL, COINIT_MULTITHREADED );
    if ( FAILED( hr ) )
    {
        printf_s( "ERROR: Unable to initialize\n" );
        goto exit;
    } 

    // Create
    hr = CoCreateInstance( __uuidof( AppHostWritableAdminManager ), NULL, 
            CLSCTX_INPROC_SERVER,
            __uuidof( IAppHostWritableAdminManager ), (void**) &pWMgr );
    if( FAILED( hr ) )
    {
        printf_s( "ERROR: Unable to create an IAppHostWritableAdminManager instance\n" );
        goto exit;
    }

    // Set the commit path
    hr = pWMgr->put_CommitPath( bstrConfigCommitPath );
    if ( FAILED( hr ) )
    {
        printf_s( "ERROR: Unable to set the configuration path" );
        goto exit;
    }

    // Get the admin section
    hr = pWMgr->GetAdminSection( bstrSectionName, bstrConfigCommitPath, &pElement );
    if ( FAILED( hr ) || ( &pElement == NULL ) )
    {
        if ( E_ACCESSDENIED == hr )
        {
            printf_s( "ERROR: Access to configuration denied.\n" );
            printf_s( "       Run sample as an administrator.\n" );
        }
        else
        {
            printf_s( "ERROR: Unable to get asp configuration section.\n" );
        }
        goto exit;
    }
        
    // Set the metadata
    hr = pElement->SetMetadata( bstrConfigSourceAttr, vtConfigSource );
    if ( FAILED( hr ) )
    {
        printf_s( "ERROR: Unable to set metadata\n" );
        goto exit;
    }

    pWMgr->CommitChanges();
exit:
    // Exiting / Unwinding
    if ( pElement != NULL )
    {
        pElement -> Release ();
        pElement = NULL;
    }

    if ( pWMgr != NULL )
    {
        pWMgr->Release(); 
        pWMgr = NULL;
    }

    SysFreeString( bstrConfigCommitPath );
    SysFreeString( bstrSectionName );
    SysFreeString( bstrConfigSource );
    SysFreeString( bstrConfigSourceAttr );


    // Uninitialize
    CoUninitialize();

    return 0;
};

Requirements

Type	Description
Client	- IIS 7.0 on Windows Vista - IIS 7.5 on Windows 7 - IIS 8.0 on Windows 8 - IIS 10.0 on Windows 10
Server	- IIS 7.0 on Windows Server 2008 - IIS 7.5 on Windows Server 2008 R2 - IIS 8.0 on Windows Server 2012 - IIS 8.5 on Windows Server 2012 R2 - IIS 10.0 on Windows Server 2016 Technical Preview
Product	- IIS 7.0, IIS 7.5, IIS 8.0, IIS 8.5, IIS 10.0 - IIS Express 7.5, IIS Express 8.0, IIS Express 10.0
Header	Ahadmin.h

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