How to change the master page from a winform?

Nelson

Hi there,

I am trying to change the master page of a webapp in SS I tried this code:

        public void mSetMasterPage(string sUrlSite, string sWebName)
        {
            using (SPSite oSiteCollection = new SPSite(sUrlSite))
            {
                SPWeb myWebSite = oSiteCollection.OpenWeb(sWebName);
                myWebSite.MasterUrl = "/_layouts/BlackBand.Master";
                myWebSite.CustomMasterUrl = "/_layouts/BlackBand.Master";
                myWebSite.Update();
            }
        }

And in theory this works, but when I open the webapp it only says "Error" and I supose that I am missingo something, but I do not know what, could anyone give me a hand???

Thank you very much for any answer,

Nelson

4 Replies

Know the answer? Post it — somebody with the same question will find it here.

Nelson17y ago
Well, thank you anyway Sam, but I found that my error was because i tried to set a master page without the same webparts, I am new working with Sharepoint so, I read some info somewhere and a friend told me that all the sites must to have the same webparts to fit in the master page.

So, If someday you need to change a master page with a click, this code works fine.

Nelson.
Sam Hobbs17y ago
I am sorry for not replying sooner, but I cannot help anyway. Honestly, I am learning about web programming also and you know more about that than I do.
Nelson17y ago
Hi there Sam,

Well, I found that my code is ok, it works, but now I found another small problem, Now i found that I have to add my new custom master page to the site collection, but I do not find/know how to do that, do you know what property should I affect to achieve this?

Thank you very much for your answer.

Nelson
Sam Hobbs17y ago
If it only says Error and nothing else, then the message is not from Windows and you need to refer to the documentation of the software that is issuing the message. If the message is more than just the one word Error, then please provide the entire message, exactly as it exists. I often use the Spy++ tool to copy error messages.

You should use try/catch blocks. Your program might be getting an error that is ignored and then leads to a more serious error. Don't write code that ignores errors then ask for help solving vague problems.

Even if you don't modify the program, you can use a breakpoint and single-stepping to determine what line it is that is getting the error. When you do, watch each line for possible errors that are not caught by your program.