Question

Set to a record in Datagridview after refresh

Asked by: ADawn

I have Datagridview on a form (frmGridData). A user double-clicks on a record in the grid to open another form (frmGridDataDetails) to make changes to the data. After the record has been edited, the user clicks save. The form (frmGridDataDetails) closes and the grid refreshs on the frmGridData form to show the data change in the grid. How do I get the grid to show (or select) the record (row) that was just edited. I've been reading about currenymanager, however, I have no idea how to use it.

ADawn

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Asked On
2009-05-01 at 06:49:55ID24372386
Tags

VB2008 Express

Topics

Microsoft Visual Basic.Net

,

.NET

,

Visual Studio

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Answers

 

by: CyberLexPosted on 2009-05-01 at 08:33:21ID: 24280438

Greetings

maybe you are looking for this?

frmGridData.FirstDisplayedScrollingRowIndex = integer

this will make the gridview scroll to the rowindex, but only if its not already in view

cheers
Alex

 

by: ADawnPosted on 2009-05-01 at 08:54:39ID: 24280669


Alex,

frmGridData is the form name. The grid on teh form is DGV_Names. Do you mean
DGV_Names.FirstDisplayedScrollingRowIndex = integer ?

Thanks, ADawn

 

by: CyberLexPosted on 2009-05-01 at 10:51:38ID: 24281781

yea, messes those names up :)

datagridviewname.FirstDisplayedScrollingRowIndex = x

x is the row number/integer


Hope it helped :)
Lex

 

by: ADawnPosted on 2009-05-02 at 06:49:23ID: 24286155

OK I tried your code, however, I need it to select a row by it unique number (autoid) of the record. I have records added to a sql database with an auto increment field (AutoID). I need to be able to (select or highlight) the record (row) within the datagridview after the record has been updated (edited).

The column is AutoID

Thanks, ADawn

 

by: CyberLexPosted on 2009-05-02 at 15:40:08ID: 24287909

Cheers

posted code below by using just the datagridview, but of course if you need example 2 i'd suppose you could do that directly on the database to find the highest AutoID.

- "Column1" is your AutoID Column-Name

cheers
alex

        'example 1 assuming the hightest number in AutoID is the same
        'as rowcount (total number of rows) if you start your AutoID
        'also with 1 as the first entry
        'if thats not the case see example 2
        For Each row As DataGridViewRow In DataGridView1.Rows
 
            If row.Cells("Column1").Value = DataGridView1.RowCount Then
 
                MsgBox(row.Index.ToString)
                row.Selected = True
                DataGridView1.FirstDisplayedScrollingRowIndex = row.Index
                Exit For
 
            End If
 
        Next
        'example 1 end
 
 
 
 
        '*****************************
        'example 2
        'get all the value into an array
        Dim ar(DataGridView1.RowCount - 1) As Integer
 
        For Each row As DataGridViewRow In DataGridView1.Rows
 
            ar(row.Index) = row.Cells("Column1").Value
 
        Next
 
        'get the highest number in the array
        Dim highest As Integer = GetLargeInt(ar)
 
        For Each row As DataGridViewRow In DataGridView1.Rows
 
            If row.Cells("Column1").Value = highest Then
 
                MsgBox(row.Index.ToString)
                row.Selected = True
                DataGridView1.FirstDisplayedScrollingRowIndex = row.Index
                Exit For
 
            End If
 
        Next
 
 
 
Private Function GetLargeInt(ByVal data() As Integer) As Integer
 
        Array.Sort(data)
 
        Array.Reverse(data)
 
        Return data(0)
 
End Function
 
        'end example 2
                                              
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by: ADawnPosted on 2009-05-09 at 14:23:08ID: 24345811

Hello alex,
I'm sorry for the late reply - been on vacation. I'm not understanding what you're doing. Let me explain better. Say I do a search for books that start with the word 'Green' . I click a button and 228 items are shown in the datagridview. Now, I double-click on a row (autoId = 578) to open that record for editing in another form. Once the editing has been completed, the edit form is closed and the grid on the orginal form is refreshed. Now, I want to set the focus back on the record with the autoid of 578. How can I do that?

Thanks for your help and patience. - ADawn

 

by: CyberLexPosted on 2009-05-10 at 05:05:32ID: 24347914

in that case propably the easiest thing to do is to iterate through the AutoID cells and if you find your desired row to select and display do so.

this is just an example, of course you will need to replace 578 with the integer variable holding the last edited AutoID and the "AutoID" is the columnname, which might be different in your case.

cheers
Alex

For Each row As DataGridViewRow In DGV_Names.Rows
 
            If row.Cells("AutoID").Value = 578 Then
                row.Selected = True
                DGV_Names.FirstDisplayedScrollingRowIndex = row.Index
                Exit For
            End If
 
Next

                                              
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