Exists / Count in client object model

Question

What's a good way to perform an Exists or Count on the client object model classes?

I have list with views. I want to check if a view already exists before creating it. Tried a couple of things, but the only thing which actually seems to work is loading the entire collection and using a foreach to check each views' title. I was hoping for a neater way using Linq for instance.

Tried:

Performing a Where on the ViewCollection and loading that with LoadQuery. But when you perform Count() on that collection, you get an error.
performing a Load on the entire Views collection and querying that; again an error.
performing a count and loading the result, seems to be unsupported

Vardhaman Deshpande · Accepted Answer · 2012-06-23 06:46:45Z

2

You could try using the ViewCollection.GetByTitle or List.GetView method to fetch the already existing view. If the view is present, it will be returned and you wont need to create the new view.

answered Jun 23, 2012 at 6:46

Vardhaman Deshpande

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Carolina Bauque · Accepted Answer · 2014-07-16 12:32:42Z

0

Just to add an example of it:

private static bool ListViewExists()
{
    ClientContext clientContext = new ClientContext("http://yoursharepointsiteurl");
    List list = clientContext.Web.Lists.GetByTitle("Test");
    ViewCollection views = list.Views;

    // Check if the view already exists
    View view = views.GetByTitle("All Items");

    try
    {
        clientContext.Load(view);
        clientContext.ExecuteQuery();

        return true;
    }
    catch (Exception)
    {
        return false;
    }
}

answered Jul 16, 2014 at 12:32

Carolina Bauque

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