Initial Conditional Filtering

[Alan Wong]

The examples for the MVC grid show how to provide a filter initially:

Html.Telerik().Grid(Model)
    .Name("Grid")
    .Filterable(filtering => filtering.Filters(filters => 
    {
        filters.Add(o => o.ContactName).StartsWith("Paul").And().EndsWith("Wilson");
    }))

How could this be conditionally done, so that based on a view value, include or not this filter.

[Alan Wong]

For those who need to do this, I came up with this solution:

 

@{
    string filterName = Request.QueryString["InitialFilter"];

    var gridFilter = new System.Action<GridFilterDescriptorFactory<UserModelWithClientAndRole>>(filter => filter.Add(m => m.LastName).IsNotEqualTo(""));
    switch (filterName)
    {
        case "Active":
            gridFilter = filter => filter.Add(m => m.AccountDisabled).IsEqualTo(false);
            break;

        case "Disabled":
            gridFilter = filter => filter.Add(m => m.AccountDisabled).IsEqualTo(true);
            break;

        case "Locked":
            gridFilter = filter => filter.Add(m => m.AccountLocked).IsEqualTo(true);
            break;

        case "Unregistered":
            gridFilter = filter => filter.Add(m => m.IsRegistered).IsEqualTo(false);
            break;
    }

}

 

Then:

.Filterable(filtering => filtering.Filters(gridFilter))