Questions on UI for WinForms Forum

1 answer

51 views

How set GridViewTemplate height or Always Show Horizontal Scroll?

as following picture shows, I have a hierarchical "Grid View", when the amount of data is too large, I can not see the horizontal scrollbar of “Event”

GridView

answered on 14 Nov 2024

1 answer

50 views

Are there any performance implications of rendering a button using CellFormatting event of RadGridView

Hello,

I have code similar to this

private void OnCellFormatting(object sender, Telerik.WinControls.UI.CellFormattingEventArgs e)
{
    if (/*some-condition-that-are-always-true-for-all-cells-in-specific-column*/true)
    {
        e.CellElement.Children.Clear();
        e.CellElement.Children.Add(new RadButtonElement { Text = e.CellElement.Value?.ToString() });
    }
}

So basically, what I'm trying to achieve is to make GridViewDataColumn look and behave like GridViewCommandColumn (currently I handle clicks on the button inside cells CellClick event handler)

My questions are:

Are there any performance drawbacks of mine implementation (i.e., related to the fact that the cell formatting event could be fired very often) ?
Is there a way to dynamically change grid column types. For example, after data binding, a column becomes a GridViewDataColumn but after clicking a button somewhere in a form it changes to GridViewCommandColumn?

Thanks

GridView

answered on 14 Nov 2024

1 answer

31 views

Making the left hand text columns a fixed width - Solution

When the GanttView opens, the ratio of the text (left) side to the graphical (right) side is 50/50.

This looks strange, as there may be either lots of space to the right of the right-most column of text, or not enough space if you have lots of columns.

There may be a better way to do this, but to make the left hand (text) columns have the correct with, and stay correct, add this:

Private Sub resetSplitter()
Dim allColWidths = 0
For Each c As GanttViewTextViewColumn In myGanttView.GanttViewElement.Columns
allColWidths = allColWidths + c.Width
Next

If allColWidths <> 0 Then 'might still be initializing
allColWidths += 5 'removes the horizontal scroll bar from the text part - makes the left hand side look a bit neater
myGanttView.Ratio = allColWidths / myGanttView.Width
End If

End Sub

You can then call this from:

1 - the Load event, so it looks nice at the start and

2 - from the resize, so it stays looking nice:

Private Sub myGanttView_Resize(sender As Object, e As EventArgs) Handles myGanttView.Resize
resetSplitter()
End Sub

GanttView

answered on 14 Nov 2024

1 answer

63 views

RadGridView - Sorting/Filtering/Grouping while using VirtualMode

Hello!

I was trying to use Sorting/Filtering/Grouping while using VirtualMode by using the default properties and methods and wasn't able to. I found this that said "In the future editions of RadGridView, we have planned to implement virtual grouping operations with a simpler and more useful API." in the year 2009. Have there been any changes? Can i use the functionalities that i want while using VirtualMode without having to override and subscribe several events to workaround this problem?

JP

Form

GridView

answered on 14 Nov 2024

2 answers

166 views

How to set the GridViewTemplate's width and height ?

In my case, the child gridview is so height(about one thousand records) and cannot see the horizontal scroll until the vertical scroll to the end. And I cannot found anyway to set the gridViewTemplate's width and height (not a row's height), so, if cannot set these , then I don't know how the VerticalScrollState and HorizontalScrollState works?

Hope to get help.

Thanks!

GridView

answered on 14 Nov 2024

2 answers

174 views

Adding new rows to data grid disappear with filters

I have a customer that when adding new records to my data grid doesn't want the records to disappear until the grid is refreshed.

For example, in the screen shot, the user has filtered the rows to State Program = "AK FFS" and NDC = "42543-003-01". The user want to see the existing values while creating the new record i.e., NDC 42543-003-02. When the user enters all the fields and the record gets added it disappears because of the current filters applied. Is there a way to by-pass the filters on the newly added rows?

Appreciate any advise.

DataEntry

DataFilter

GridView

answered on 05 Nov 2024

1 answer

33 views

Tree View drag / drop visual cue

Hi,

Is it possible to override the colour and width of the horizontal drag / drop visual cue? If so can you give me an example ?

Cheers

Toby

Treeview

answered on 04 Nov 2024

1 answer

175 views

GridView Row and Cell formatting. (Padding, Margin, Border).

During implementation different own styles, I've noticed some confusing moments, and I could find the explanation in docs.

Working with Padding Border and Margin expected structure was as it is described in a picture. Row element Content contains Cell element.

1)[RowBorders]
After format implementation Cells cover Row border.

        private void RadGridView1_CellFormatting(object sender, CellFormattingEventArgs e)
        {
            e.CellElement.DrawFill = true;
            e.CellElement.BackColor = Color.Orange;
            e.CellElement.NumberOfColors = 1;

            e.CellElement.BorderColor = Color.Yellow;
            e.CellElement.BorderWidth = 3;
            e.CellElement.DrawBorder = true;
            e.CellElement.BorderBoxStyle = Telerik.WinControls.BorderBoxStyle.SingleBorder;
            e.CellElement.BorderGradientStyle = Telerik.WinControls.GradientStyles.Solid;
        }

        private void RadGridView1_RowFormatting(object sender, RowFormattingEventArgs e)
        {
            e.RowElement.DrawFill = true;
            e.RowElement.BackColor = Color.GreenYellow;
            e.RowElement.NumberOfColors = 1;

            e.RowElement.BorderColor = Color.Aqua;
            e.RowElement.BorderWidth = 3;
            e.RowElement.DrawBorder = true;
            e.RowElement.BorderBoxStyle = Telerik.WinControls.BorderBoxStyle.SingleBorder;
            e.RowElement.BorderGradientStyle = Telerik.WinControls.GradientStyles.Solid;
        }

2)[Row Padding]
In case of adding padding to the row, cells were not surrounded by some row spaces, but only size of row and it's cells were increased.

e.RowElement.Padding = new Padding(20,20,20,20);

3)[Row and Cell Margin]
Setting Margin to the row or cell, adds margin to the group of rows or cells. (there is no margin between rows and cells)

e.RowElement.Margin = new Padding(20,20,20,20);
e.CellElement.Margin = new Padding(10, 10, 10, 10);

3.1) [Cell Margin Right side]
As you can see from the previous picture margin wasn't added to the group of cells on the right side.

4) Is there any docs about BorderThickness using, because only way of changing of changing Thickness of each border i see as BorderTopWidth, BorderBottomWidth, BorderLeftWidth, BorderRightWidth.

I would appreciate if you share docs where I can understand the concept of this implementations.
Thank You!

GridView

Styling

answered on 04 Nov 2024

1 answer

30 views

RadNavigationView Popup colors

When RadNavigationView is in Compact mode, I'd like to change the background color of the popup that displays the subpages of a main element. I thought the setting radNavigationView1.NavigationViewElement.Popup.BackColor would do it, but this changes nothing.

Where are the settings to change colors and fonts for the popup?

NavigationView

answered on 04 Nov 2024

1 answer

97 views

CVE-2024-0219 issue of Telerik JustDecompile.

Hello.

As far as I know, the last version of Telerik JustDecompile is "2024.1.131.0". Is version 2024.1.131.0 free from CVE-2024-0219? And is it a version after 2024 R1?

CVE-2024-0219
In Telerik JustDecompile versions prior to 2024 R1, a privilege elevation vulnerability has been identified in the applications installer component. In an environment where an existing Telerik JustDecompile install is present, a lower privileged user has the ability to manipulate the installation package to elevate their privileges on the underlying operating system.

Security

answered on 01 Nov 2024