ElseIf drAtd IsNot Nothing AndAlso drAtd.Length > 0 Then Dim dr As DataRow dr = dtfinal.NewRow() dr(0) = dtAtd.Rows(0)(0) dr(1) = dtAtd.Rows(0)(1) dr(2) = dt dr(3) = "P" dr(4) = "-" dr(5) = dtAtd.Rows(0)(3) dr(6) = dtAtd.Rows(1)(3) dr(7) = dtAtd.Rows(2)(3) dr(8) = dtAtd.Rows(3)(3) dr(9) = dtAtd.Rows(4)(3) dr(10) = dtAtd.Rows(5)(3) dtfinal.Rows.Add(dr)but in every loop he prints same value which for selected area how can remove this problem
You will need Grouped GridView for that
http://techbrij.com/869/grouping-gridview-rows-asp-net
thanks but this is not solution of my problem because my problem is data duplicay only in time field
What you are doing is also grouping. you are putting time in date groups i.e. multiple times for a single date since date is same for multiple times
Hence you need to follow the link I gave you as there also it is displaying grouped data
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