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Support for Kendo UI 'isnull' and 'isnotnull' filters #30

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asteffes opened this issue Jan 25, 2017 · 1 comment
Open

Support for Kendo UI 'isnull' and 'isnotnull' filters #30

asteffes opened this issue Jan 25, 2017 · 1 comment

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@asteffes
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Kendo UI grid supports filtering columns based on 'NULL' or 'Not NULL' values.

These grid filters pass serialized 'Filter' objects to the server with string operators like 'isnull' and 'isnotnull' for the specified columns.

The Kendo.DynamicLinq.Filter collection of operators does not contain the 'isnull' or 'isnotnull' operators, and therefore there is an exception thrown when attempting to evaluate these filters using the ToDataSourceResult IQueryable extension method.

How can we gain support for these Kendo UI grid filters 'isnull' and 'isnotnull'?
@Hashemalrifai
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Hi, I have the same issue, and I can see this PR #23
Can anyone review and merge to master?

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@asteffes @Hashemalrifai