Declare the type of cell of DevExpress GridView ?

Question

I use Dictionary to mark of Cell type (GridView of DevExpress), for example, declare the type of row, I declared thus:

[code]

  Dictionary<DataRow, Color> colors = new Dictionary<DataRow, Color>();

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code above the type of row, declaration row is: DataRow, I want to replace the type DataRow is Cell type of the DevExpress GridView What is keyword in C# ?

[code]

  Dictionary<???, Color> colors = new Dictionary<DataRow, Color>();

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