Invisible/Hidden Scroll Bars in C1TrueDBGrid Grid in Windows Forms ?

Khaja Moizuddin

Hi Team,

I am facing Invisible scroll bar issue for "C1TrueDBGrid" Grid in Windows Application or Windows Forms, In some of the machines scroll bars are visible, & in some machines it's hidden or invisible. Did anyone faced similar kind of issue with Invisible scroll Bars in Windows Application for C1TrueDBGrid Grid.

Thanks & Regards

Khaja Moizuddin

6 Replies

Know the answer? Post it — somebody with the same question will find it here.

Khaja Moizuddin5y ago
Issue got identified for the above query post, With the Windows 10 Patch Update with April 2021 they stopped supporting the scroll bar's in Winforms Grid, & they have addressed this issue with May 2021 release. The system installed with April 2021 release will face the missing scroll bar issue in their windows application.

https://support.microsoft.com/en-us/topic/april-13-2021-kb5001337-os-build-18363-1500-e7336837-2aaa-4f73-995c-ab2ba5013727 (April 2021 Release)

https://support.microsoft.com/en-us/topic/may-11-2021-kb5003169-os-build-18363-1556-13896704-b003-4d24-bf45-b6e1ff506d64 (May 2021 Release)

Hope this may help someone.

Thanks
Khaja
+1
Khaja Moizuddin5y ago
Hi Pranam, as i have mentioned in this post, In Windows Forms scroll bars(Horizontal,Vertical) is getting disappears/invisible in some machines after the data is loaded to the Grid, & in few machines the scroll bars(Horizontal,Vertical) still appears or Visible after loading the data to the Grid, I don't think it is application related Issue, It can be system settings change issue.
+1
Pranam Bhat5y ago
Can you elaborate your issue? Also which language you meant? What's the required outcome?
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Khaja Moizuddin5y ago
Hi Pranam, Thanks for your response, the solution you provided seems to be part of this https://www.grapecity.com/forums/c1-studio/problem-with-c1truedbgrid- seems its not related to my query as mentioned in the blog & this is related to FlexGrid, I think my issue is more related to some system settings or Windows OS patch Update, Can you please repond to this query if you have anything specific to the query.
+1
Pranam Bhat5y ago
If it doesn't work, try something like this:
private void Form1_Load(object sender, EventArgs e)
{
    // TODO: This line of code loads data into the 'c1NWindDataSet.Customers' table. You can move, or remove it, as needed.
    this.customersTableAdapter.Fill(this.c1NWindDataSet.Customers);
    c1FlexGrid1.Rows.Frozen = 2;
    c1FlexGrid1.DrawMode = C1.Win.C1FlexGrid.DrawModeEnum.OwnerDraw;
    c1FlexGrid1.OwnerDrawCell += new C1.Win.C1FlexGrid.OwnerDrawCellEventHandler(c1FlexGrid1_OwnerDrawCell);
}

void c1FlexGrid1_OwnerDrawCell(object sender, C1.Win.C1FlexGrid.OwnerDrawCellEventArgs e)
{
    if (e.Row == c1FlexGrid1.Rows.Frozen)
    {
        e.DrawCell(DrawCellFlags.All);
        c1FlexGrid1.BeginUpdate();
        Point pt1 = new Point(c1FlexGrid1.GetCellRect(3, 1).X, c1FlexGrid1.GetCellRect(3, 1).Y);
        Point pt2 = new Point(c1FlexGrid1.GetCellRect(3, c1FlexGrid1.Cols.Count - 1).X, c1FlexGrid1.GetCellRect(3, c1FlexGrid1.Cols.Count - 1).Y);
        e.Graphics.DrawLine(new Pen(Brushes.Red, 4), pt1, pt2);
        e.Handled = true;
        c1FlexGrid1.EndUpdate();
    }
}
+1
Pranam Bhat5y ago
Try this:
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
C1TrueDBGrid1.TabAction = C1.Win.C1TrueDBGrid.TabActionEnum.ColumnNavigation
AddHandler C1TrueDBGrid1.RowColChange, AddressOf C1TrueDBGrid_RowColChange
End Sub

Private Sub C1TrueDBGrid_RowColChange(sender As Object, e As C1.Win.C1TrueDBGrid.RowColChangeEventArgs)
If e.LastCol = 0 AndAlso e.LastRow = C1TrueDBGrid1.Row Then
C1TrueDBGrid1.Col = 2
End If
End Sub
+1