• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 390
  • Last Modified:

DBGrid, Column reset when Refresh

When i use Refresh to update the contents of the grid
it resets the sizes of the columns and visibility properties to default ones which isn't very useful.
Is there something i can do to stop the resizing after i have initially set them?
Thanks
0
SIMONBRATT
Asked:
SIMONBRATT
1 Solution
 
trkcorpCommented:
Is it a bound grid? If so, refreshing the data control rather than the grid itself should leave set attributes intact.
0
 
CraigLazarCommented:
Hi Simon
I used this code for a grid control in vb3 and it works perfectly
u might have to modify it slightly. it refreshes when ever a new record is added to the database .
    On Error GoTo eh2:
 
    Dim rstab As Table
    Dim rsgrid As Table
    Dim i As Integer
    Dim numrec As Integer
    Dim tempnum As Integer
   
    Set rstab = DB.OpenTable("log")
   
    rstab.MoveLast
   
    rstab.MoveLast ' Count the records.
    grid2.Rows = rstab.RecordCount + 1 ' Set the rows.

    tempnum = rstab.RecordCount + 1
   
    grid2.Cols = rstab.Fields.Count + 1    ' Set the columns.
    grid2.SelStartCol = 1
    grid2.SelEndCol = grid2.Cols - 1
    grid2.SelStartRow = 1
    grid2.SelEndRow = grid2.Rows - 1

    grid2.Row = 0
    grid2.Cols = 7
    grid2.Col = 0
    grid2.ColWidth(0) = 1

    grid2.Col = 1
    grid2.ColWidth(1) = 1000
    grid2.Text = "Number"
   
    grid2.Col = 2
    grid2.ColWidth(2) = 1500
    grid2.Text = "Date"
   
    grid2.Col = 3
    grid2.ColWidth(3) = 1000
    grid2.Text = "Start"
   
    grid2.Col = 4
    grid2.ColWidth(4) = 1000
    grid2.Text = "End"
   
    grid2.Col = 5
    grid2.ColWidth(5) = 1800
    grid2.Text = "Dial Option"
   
    grid2.Col = 6
    grid2.ColWidth(6) = 2300
    grid2.Text = "Result"

rstab.MoveLast
    Do Until rstab.BOF ' Loop through the Snapshot.
        numrec = numrec + 1
        If numrec >= 150 Then
            Exit Do
        End If
        On Error Resume Next
        'grid1.Row = 1
          grid2.Row = grid2.Row + 1
        For i = 1 To grid2.Cols - 1 ' Cycle through the columns.
            grid2.Col = i   ' Set the column number.
         If i = 0 Then   ' If first column...
                grid2.Text = i  ' Set the value.
            Else
                grid2.Text = rstab(i)
            End If
        Next i
        On Error GoTo 0
        rstab.MovePrevious ' Move to next record.
        'grid1.Row = grid1.Row + 1  ' ' Set the row number.
    Loop
grid2.HighLight = False
rstab.Close
eh2:
  Exit Sub
End Sub


hope it helps
C

0
 
SIMONBRATTAuthor Commented:
it is a bound grid and i am refreshing the data control when it happens, if i use dbgrid.refresh it doesn't actually refresh the grid? eh?
0
 
SIMONBRATTAuthor Commented:
too complicated for a beginner, when does the grid get visibly updated?
0
 
BETTYCommented:
I had this problem in a program I made: when I refreshed the recordset of the Dbgrid (i.e. after a re-sorting or filtering), all column properties were re-set to default.

This is what I made (this example applies to titles and widths only):

1. Create in Module.bas a global variant variable for titles and other for widths (i.e. name them aColTexts and aColWidths).
2. In Form.Load, fill the variables with Array() function.
3. Make a For..Next statement with Array boundary (use LBound and UBound) like:

    Dim nCicle As Long  'It has to be long for LBound/UBound.
    For nCicle = LBound(aColTexts) To UBound(aColTexts)
        f.grdDataGrid.Columns(nCicle).Width = aColWidths(nCicle)
        f.grdDataGrid.Columns(nCicle).Caption = aColTexts(nCicle)
    Next

4. Repeat this code just after you refresh the dbgrid.
0

Featured Post

Concerto Cloud for Software Providers & ISVs

Can Concerto Cloud Services help you focus on evolving your application offerings, while delivering the best cloud experience to your customers? From DevOps to revenue models and customer support, the answer is yes!

Learn how Concerto can help you.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now