The control type 'System.Web.UI.WebControls.Xml' is not allowed on this page

Question

Hi All,

I have place a xml control like below in a WebPart Page through SharePoint Designer 2010.

It have one xml file and one xslt file.

<asp:Content ContentPlaceHolderId="PlaceHolderMain" runat="server">

<div>

<asp:Xml runat="server" id="xmlEmployee"   DocumentSource="file:///C:/Users/Administrator/Desktop/Employee.xml" TransformSource="file:///C:/Users/Administrator/Desktop/Employee.xsl">

</asp:Xml>

</div>

.

.

.

.

.

</asp:Content>

But when i am trying to run the page, following error occur:

The control type 'System.Web.UI.WebControls.Xml' is not allowed on this page

Please help in this regards.....

Thanx in advance

Answer 1

Hi ,

 

I have a test based on your description .When add the XML control directly on the web part page ,it will get the same error message as yours .Or when preview ,it will show ‘Web part error’ .Because this xml control is not a web part .Here is a workaround :

1.       Add a XML viewer web part on the web part page .

2.       Choose the web part properties .

3.       Add the XML file and the xslt file to the web part .Then the page will display the XML file properly .

 

Thanks

---

Entan Ming

TechNet Community Support

Answer 2

Hi ,

 

Here is another workaround :

Add the XML control as safe control in web.config file of the web application .You can find the web.config file here : C:\inetpub\wwwroot\wss\VirtualDirectories .

 

Find the <SafeControl > tag  and add these lines below :

      <SafeControl Assembly="System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Namespace="System.Web.UI.WebControls" TypeName="Xml" Safe="True" AllowRemoteDesigner="True" />

 

Save the web.config file and perform an IIS reset .

 

Thanks

---

Entan Ming

TechNet Community Support

Answer 3

Thanks Entan

For the last few days i was little bit of busy, so i am not able to reply on your post. Thanks again for your suggestion, i will do what you post and will get back to you if required...

 

 

Thanks & Regards

Ayan Choudhury

Answer 4

Ayan:

I have the same issue as you.. what were you able to find out?

thanks,
Harry

Answer 5

Correction... I edited the web.config and performed the IIS reset. All is well now.

thanks.

Answer 6

Hi,

  I've the same issue.. i edited the web.config and restarted IIS but no help. Can any one help me on this? How can I get more details of this error?

Also as I'm new to SP, i'd like to ask one more question(Please answer to it even if it seems silly).... When I deploy a webpart developed in VS to a sharepoint site, where is it stored?

Thanks and Regards

Praveen.