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Datagrid: Number formatting

Posted on 2004-10-28
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Last Modified: 2012-06-21
Hi experts,
I have created a dynamic data table and added a following column to it.

        dtFiles.Columns.Add("Size", GetType(Long))

Now when I add the data to it I use the following line of code

newRow("Size") = FileLen(ofdlg.FileNames(i))

----------------

Problem: I am unable to fortamt the number, e.g., if the file size is 2322, I want it to appear like, 2,322

How do I achieve it, yet I do not want to change the datatype to string as it is does not perform well in sorting.

Thanks in adv.

msali.
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Question by:msali
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3 Comments
 
LVL 19

Expert Comment

by:arif_eqbal
ID: 12431327
You need to Format the particular Column of the DataTable
Use DataGrid Table Style and TextBox Column Style to do it
eg.

        Dim ts1 As New DataGridTableStyle
        ts1.MappingName = "Table1" 'The Name of table in the DataTable

        Dim Col As New DataGridTextBoxColumn
        Col.MappingName = "Size" 'Name of Column in the Table
        Col.HeaderText = "Size"
        Col.Width = 100
        Col.Format = "N" 'Set the Format to Numeric
        ts1.GridColumnStyles.Add(Col) 'Add the Column Style to TableStyle

       DataGrid.TableStyles.Add(ts1) 'Add the Table Style to DataGrid

0
 

Author Comment

by:msali
ID: 12432857
arif eqbal, i tried what you suggested, but it gives me an error that "Size" is already defined in my DataGridStyles.

So I uesed the RemoveAt method to remove the Size column from my grid style and then added it again but now it as added it at the end of my grid.

FYI: following is the code that I have written for mapping grid with cols and styles

        dsFiles = New DataSet("Files")
        dsFiles.Tables.Add(dtFiles)
        grdFiles.ParentRowsVisible = False
        grdFiles.DataSource() = dsFiles
        grdFiles.DataMember = "Files"

        Dim grdStyle As New DataGridTableStyle
        grdStyle.MappingName = dsFiles.Tables("Files").TableName
        grdFiles.TableStyles.Add(grdStyle)


Thanks.
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LVL 19

Accepted Solution

by:
arif_eqbal earned 500 total points
ID: 12434794
Just before the last line in your posted code add the following lines

  Dim Col As New DataGridTextBoxColumn
        Col.MappingName = "Size" 'Name of Column in the Table
        Col.HeaderText = "Size"
        Col.Width = 100
        Col.Format = "N" 'Set the Format to Numeric
ts1.GridColumnStyles.Add(Col)

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