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Thread: [RESOLVED] create empty rows in a datagrid at end of a progression

  1. #1

    Thread Starter
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    Resolved [RESOLVED] create empty rows in a datagrid at end of a progression

    Hi all.
    I have a datagridview filled form a datab in access.It comprises of five fields.The database is a student database the fields are
    number name exam score overall score. and they are presented like this
    1 angie simms history 92 123
    2 angie simms math 92 123
    3 angie simms english 67 114
    4 angie simms science 72 128
    1 andy davies science 67 104
    2 andy davies math 81 111
    3 andy davies history 56 98
    1 dave baker geog 82 114
    2 dave baker history 82 114
    3 dave baker math 82 114
    4 dave baker english 82 114
    5 dave baker science 82 114
    6 dave baker french 82 114

    Notice in column 1 each student record has their own record numbers
    and these can vary from 2 upto 12.So in the above eg angie has 4 records,andy 3 and dave 6.What I wanted to do is create an empty row between each student record ,and I assume that there would have to be a loop involved which would take its cue from the first column of numbers for each student.So the above would then look like this.

    1 angie simms history 92 123
    2 angie simms math 92 123
    3 angie simms english 67 114
    4 angie simms science 72 128
    empty row
    1 andy davies science 67 104
    2 andy davies math 81 111
    3 andy davies history 56 98
    empty row
    1 dave baker geog 82 114
    2 dave baker history 82 114
    3 dave baker math 82 114
    4 dave baker english 82 114
    5 dave baker science 82 114
    6 dave baker french 82 114
    I can do this in excel but am baffled as to how to do it in vb.net.Any suggestions most welcome
    regards
    lilmelight
    Last night I dreamt I went to Manderley again

  2. #2
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    Modesto, Ca.
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    Re: create empty rows in a datagrid at end of a progression

    If your using a datatable as the datagridview datasource and you have the rows ordered by name, number. Then you could do something like this,

    Code:
            Dim chk As String = dt.Rows(0).Item("name").ToString
    
            For i As Integer = 0 To dt.Rows.Count - 1
                If chk <> dt.Rows(i).Item("name).ToString Then
                    chk = dt.Rows(i).Item("name).ToString
                    Dim row As DataRow = dt.NewRow
                    dt.Rows.InsertAt(row, i)
    
                End If
            Next
    
            Me.DataGridView1.DataSource = dt

  3. #3

    Thread Starter
    Member
    Join Date
    Feb 2018
    Location
    UK
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    Re: create empty rows in a datagrid at end of a progression

    Hi wes4dbt
    Nice piece of code and works great.Thats just what I wanted.Many thanks for that.
    Kind Regards
    LL
    Last night I dreamt I went to Manderley again

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