The 3.5 Config feature on first activation activates OK, deactivation of the feature deactivates OK, BUT if then it is reactivated for a second time there is an error:
Failed to apply a web.config modification to file 'configuration/system.web/pages'. The specified node "C:\Inetpub\wwwroot\wss\VirtualDirectories\80\web.config" was not found in the web.config file.
The Pages node is completely removed from the web.config on deactivation. This is one issue but there is a further issue.
Original config
<pages enableSessionState="false" enableViewState="true" enableViewStateMac="true" validateRequest="false" pageParserFilterType="Microsoft.SharePoint.ApplicationRuntime.SPPageParserFilter, Microsoft.SharePoint, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" asyncTimeout="7">
<namespaces>
<remove namespace="System.Web.UI.WebControls.WebParts" />
</namespaces>
<tagMapping>
<add tagType="System.Web.UI.WebControls.SqlDataSource, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" mappedTagType="Microsoft.SharePoint.WebControls.SPSqlDataSource, Microsoft.SharePoint, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" />
</tagMapping>
</pages>
After first activation
<pages enableSessionState="false" enableViewState="true" enableViewStateMac="true" validateRequest="false" pageParserFilterType="Microsoft.SharePoint.ApplicationRuntime.SPPageParserFilter, Microsoft.SharePoint, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" asyncTimeout="7">
<namespaces>
<remove namespace="System.Web.UI.WebControls.WebParts" />
</namespaces>
<tagMapping>
<add tagType="System.Web.UI.WebControls.SqlDataSource, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" mappedTagType="Microsoft.SharePoint.WebControls.SPSqlDataSource, Microsoft.SharePoint, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" />
</tagMapping>
<controls>
<add tagPrefix="asp" namespace="System.Web.UI.WebControls" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
<add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
</controls>
</pages>
On deactivation the Pages node is removed. This means a second reactivation fails with the error above but a further issue is that the original nodes within the Pages node are now lost.
Comments: ** Comment from web user: tns **
Failed to apply a web.config modification to file 'configuration/system.web/pages'. The specified node "C:\Inetpub\wwwroot\wss\VirtualDirectories\80\web.config" was not found in the web.config file.
The Pages node is completely removed from the web.config on deactivation. This is one issue but there is a further issue.
Original config
<pages enableSessionState="false" enableViewState="true" enableViewStateMac="true" validateRequest="false" pageParserFilterType="Microsoft.SharePoint.ApplicationRuntime.SPPageParserFilter, Microsoft.SharePoint, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" asyncTimeout="7">
<namespaces>
<remove namespace="System.Web.UI.WebControls.WebParts" />
</namespaces>
<tagMapping>
<add tagType="System.Web.UI.WebControls.SqlDataSource, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" mappedTagType="Microsoft.SharePoint.WebControls.SPSqlDataSource, Microsoft.SharePoint, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" />
</tagMapping>
</pages>
After first activation
<pages enableSessionState="false" enableViewState="true" enableViewStateMac="true" validateRequest="false" pageParserFilterType="Microsoft.SharePoint.ApplicationRuntime.SPPageParserFilter, Microsoft.SharePoint, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" asyncTimeout="7">
<namespaces>
<remove namespace="System.Web.UI.WebControls.WebParts" />
</namespaces>
<tagMapping>
<add tagType="System.Web.UI.WebControls.SqlDataSource, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" mappedTagType="Microsoft.SharePoint.WebControls.SPSqlDataSource, Microsoft.SharePoint, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" />
</tagMapping>
<controls>
<add tagPrefix="asp" namespace="System.Web.UI.WebControls" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
<add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
</controls>
</pages>
On deactivation the Pages node is removed. This means a second reactivation fails with the error above but a further issue is that the original nodes within the Pages node are now lost.
Comments: ** Comment from web user: tns **
Anyone found a solution/workaround for this?