I have worked based on : .Filter(filter => filter.Add(/* your filter rule */)) , that I found in here.
My code is :
var grid =
Html.Kendo().Grid<dynamic>().Name(Model.Current.Id).HtmlAttributes(new
{
// lot of stuff
}
grid.DataSource(ds =>
{
var ajaxDsBuilder = ds.Ajax();
ajaxDsBuilder.Model(model => model.Id("ID")).Events(ev => ev.Error("gridOnError")).ServerOperation(Model.Current.LazyLoading);
// mode code
var cols = Model.Current.Columns.ToList();
foreach (var col in cols)
{
ajaxDsBuilder.Sort(sort => sort.Add(col.Name).Ascending()); // this works perfect for pre-sorting ( col.Name = the column name )
ajaxDsBuilder.Group(grp => grp.Add(col.Name, typeof(string))); // this the same works great for pre-grouping
but when I try this:
ajaxDsBuilder.Filter(f => f.Add(c=> c.col.Name).IsEqualTo("TEST"));
I get : Error309 An expression tree may not contain a dynamic operation
if I try: ajaxDsBuilder.Filter(f => f.Add(c=> col.Name.ToString()).IsEqualTo("TEST")); // I am overriding ToString() to give me the name of column
I get : Internal server error
if I try: ajaxDsBuilder.Filter(f => f.Add(c=> col.Name).IsEqualTo("TEST"));
I get : Property with specified name: col.Name cannot be found on type: System.Data.DataRowView
I have also worked with lambda expressions, but I have pretty much the same errors.
My grid has to be dynamic, so I can't change that.
Any help?