带字符串的Concat十进制值

Question

I am retrieving data from the database and displaying in Gridview. I have some data in which I want to display % sign at the end (in gridview) what would be the best way to achieve this. Can I concat % sign in sql select statement or I have to add using vb code behind.

Answer 1

The best way is to use DataFormatString property from the Gridview columns and set it to something like "{0:0.00}%". This will format your results by using the number, 2 decimal positions and adding the % symbol to the end.

If you have rows with numeric values and rows that already contain % or other special characters, the best way to assure that the data is correctly visualized would be to remove the % or special characters before setting the Gridview data source. This way you will allways get the same result for each row.

Answer 2

I loop through the Gridview row and concat % sing at the end

 If e.Row.RowType = DataControlRowType.DataRow Then

            If e.Row.Cells(6).Text = 4 Then
                e.Row.Cells(5).Text += " %"
            End If
        End If