groups without sorting

[Markus]

Hi,

how can I create groups which are not sorted rather the groups have the order of the datasource.

My data source is a IList of Objects. The objects have the properties: value and cavity.

Now I want to group the values by cavity. But the order of cavities should have the same order like they appear in the list.

e.g.:      value  cavity
            10         C
            11         C
            8           B
           10          B
            8           D
            9           D
            8           A
            7           A

the group order in GridView should be the same order in the list. group one = C, group two = B, group three = D, group four = A

Thank you for your help.

[Martin Vasilev]

Hi Markus,

Thank you for writing.

Currently RadGridView does not support custom groups sort. Fortunately, the described custom scenario could be easily implemented by adding invisible temp column and replacing the group with grouping by this temp column. To demonstrate this approach I have prepared a sample project that you can find as attachment to this message.

Do not hesitate to contact me again if you have any additional questions.

Best wishes,
Martin Vasilev
the Telerik team

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[Markus]

With your proposed solution I created some code that works for me.

Thank you very much.

[Martin Vasilev]

Hi Markus,

I am glad that the suggested approach suits your scenario. Do not hesitate to write me back if you need additional assistance.

Greetings,
Martin Vasilev
the Telerik team

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