How to get the names of visible column from grid in codebehind?

Is there any way that I can get names of visible column only.

Attachment 25086

I tried

Code:

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bool abc1 = GridPanel.ColumnModel.Columns[1].Hidden;
if(bool)
  //get name of column name using

GridPanel.ColumnModel.Columns[1].Text

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But this is not working is there anyway I can achieve this