Questions on UI for WinForms Forum

1 answer

33 views

Advice on the best way to implement this...

I need to quickly develop an 'updater' application that allows updating one or more software. I would like a look similar to the Adobe updater. What should I choose as a component? A grid? A ListView? Is it possible to have a column in the grid that changes its appearance: switches from a button to a progress bar?

GridView

ListView

answered on 01 Mar 2024

2 answers

34 views

Hidding/Collapsing FilterButton on some columns

When I Hide/Collapse the FILTER button in the column header, it doesn't remove the space from the header until the user clicks in the row/header. I must be doing something wrong. Currently, I am using the ViewCellFormatting event to hide/collapse the FilterButton.

Any ideas?

Thanks.

GridView

answered on 28 Feb 2024

1 answer

48 views

RadColorPicker Dialog is DPI aware?

Hi, I'm trying to adapt my program to all type of screens with different scale settings and I encounted some difficulties with the RadColorPicker Dialog.

As you can see in the image below I tested my RadForm in a screen with the scale setted to 200% and when I open the RadColorPicker I cant see some controls that are inside of the Dialog.

I tried different setting and the only one where I can see all the controls is with the DPI aware setted to false but the texts are pixelated.

This is one of the test I made to set the DPI aware on my app.manifest:

<asmv3:application>
<asmv3:windowsSettings xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">
<dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2</dpiAwareness>
</asmv3:windowsSettings>
</asmv3:application>

There's a way to set the DPI aware for the RadColorPicker dialog?

Thanks in advace.

ColorDialog

Form

GridView

answered on 03 Feb 2024

1 answer

25 views

how to show html in GirdView and how to cancle default selection

hello, i have use the approach from article https://docs.telerik.com/devtools/winforms/knowledge-base/display-and-edit-html-text-in-grid-cells to

show html in gridview ,but after set the datasource , the html style didn't display. Just like the following image ,i have set the color to red use font element:

the second problem is that ,when the grid view render finished ,the first cell of the gridview is selected and the backgroud color is blue, when i set the second cell to selected , the first cell bgcolor not changed. the method clearSelection of the GridView cann't work,even though i called this method in constructor ,the first cell bgcolor is still blue.

thanks

GridView

answered on 31 Jan 2024

3 answers

28 views

Ayuda con error en Telerik.WinControls.UI.GridCommandCellElement.Detach()

at Telerik.WinControls.UI.GridCommandCellElement.Detach() in Telerik.WinControls.UI\GridCommandCellElement.cs:line 41
at Telerik.WinControls.UI.BestFitHelper.Detach(IVirtualizedElementProvider`1 cellElementProvider, GridCellElement cell) in Telerik.WinControls.UI\BestFitHelper.cs:line 388
at Telerik.WinControls.UI.BestFitHelper.MeasureCell(GridViewRowInfo row, GridViewColumn column, BestFitColumnMode mode) in Telerik.WinControls.UI\BestFitHelper.cs:line 257
at Telerik.WinControls.UI.BestFitHelper.CalculateColumnWidth(GridViewColumn column, BestFitColumnMode mode) in Telerik.WinControls.UI\BestFitHelper.cs:line 203
at Telerik.WinControls.UI.BestFitHelper.BestFitColumnsCore(Nullable`1 mode) in Telerik.WinControls.UI\BestFitHelper.cs:line 139
at Telerik.WinControls.UI.BestFitHelper.ProcessRequests() in Telerik.WinControls.UI\BestFitHelper.cs:line 76
at Telerik.WinControls.UI.RowsContainerElement.MeasureOverride(SizeF availableSize) in Telerik.WinControls.UI\RowsContainerElement.cs:line 211
at Telerik.WinControls.RadElement.MeasureCore(SizeF availableSize)
at Telerik.WinControls.RadElement.Measure(SizeF availableSize)
at Telerik.WinControls.UI.ScrollViewElement`1.MeasureViewElement(SizeF availableSize)
at Telerik.WinControls.UI.ScrollViewElement`1.MeasureView(SizeF availableSize)
at Telerik.WinControls.UI.ScrollViewElement`1.MeasureOverride(SizeF availableSize)
at Telerik.WinControls.UI.GridTableElement.MeasureOverride(SizeF availableSize) in Telerik.WinControls.UI\GridTableElement.cs:line 2396
at Telerik.WinControls.RadElement.MeasureCore(SizeF availableSize)
at Telerik.WinControls.RadElement.Measure(SizeF availableSize)
at Telerik.WinControls.Layouts.DockLayoutPanel.MeasureOverride(SizeF constraint)
at Telerik.WinControls.RadElement.MeasureCore(SizeF availableSize)
at Telerik.WinControls.RadElement.Measure(SizeF availableSize)
at Telerik.WinControls.UI.LightVisualElement.MeasureElements(SizeF availableSize, SizeF clientSize, Padding borderThickness)
at Telerik.WinControls.UI.LightVisualElement.MeasureOverride(SizeF availableSize)
at Telerik.WinControls.RadElement.MeasureCore(SizeF availableSize)
at Telerik.WinControls.RadElement.Measure(SizeF availableSize)
at Telerik.WinControls.RootRadElement.MeasureOverride(SizeF availableSize)
at Telerik.WinControls.RootRadElement.MeasureCore(SizeF availableSize)
at Telerik.WinControls.RadElement.Measure(SizeF availableSize)
at Telerik.WinControls.RadElementTree.PerformInnerLayout(Boolean performMeasure, Int32 x, Int32 y, Int32 width, Int32 height)
at Telerik.WinControls.RadControl.GetRootElementDesiredSize(Int32 x, Int32 y, Int32 width, Int32 height)
at Telerik.WinControls.RadControl.SetBoundsCore(Int32 x, Int32 y, Int32 width, Int32 height, BoundsSpecified specified)
at System.Windows.Forms.Control.System.Windows.Forms.Layout.IArrangedElement.SetBounds(Rectangle bounds, BoundsSpecified specified)
at System.Windows.Forms.Layout.DefaultLayout.ApplyCachedBounds(IArrangedElement container)
at System.Windows.Forms.Layout.DefaultLayout.xLayout(IArrangedElement container, Boolean measureOnly, Size& preferredSize)
at System.Windows.Forms.Layout.DefaultLayout.LayoutCore(IArrangedElement container, LayoutEventArgs args)
at System.Windows.Forms.Layout.LayoutEngine.Layout(Object container, LayoutEventArgs layoutEventArgs)
at System.Windows.Forms.Control.OnLayout(LayoutEventArgs levent)
at System.Windows.Forms.ScrollableControl.OnLayout(LayoutEventArgs levent)
at System.Windows.Forms.Control.PerformLayout(LayoutEventArgs args)
at System.Windows.Forms.Control.System.Windows.Forms.Layout.IArrangedElement.PerformLayout(IArrangedElement affectedElement, String affectedProperty)
at System.Windows.Forms.Control.OnResize(EventArgs e)
at System.Windows.Forms.Panel.OnResize(EventArgs eventargs)
at System.Windows.Forms.Control.OnSizeChanged(EventArgs e)
at System.Windows.Forms.Control.UpdateBounds(Int32 x, Int32 y, Int32 width, Int32 height, Int32 clientWidth, Int32 clientHeight)
at System.Windows.Forms.Control.UpdateBounds()
at System.Windows.Forms.Control.WmWindowPosChanged(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at Telerik.WinControls.UI.RadPageViewPage.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

GridView

answered on 31 Jan 2024

1 answer

26 views

Insertion of row allowed but update of row not allowed

Hi,

I want to have functionality that user can add row in a grid but cannot update the existing data in a grid how we can do.
hope you understand my requirement.

i.e. Row Insert Allowed but update not allowed.

Thanks,
Shubham Jain

GridView

answered on 30 Jan 2024

1 answer

30 views

selects an index of the combo column and does not take the value

I am using a gridview, I have a column created without linking to combo type data, in the createcell event I fill the combo list but when selecting an element it is not shown in the column, however its value is taken. Could someone help me now? break your head

GridView

answered on 23 Jan 2024

2 answers

273 views

Combobox with Image and Text

Would it be possible to create combobox (within GridViewComboBoxColumn) with image and text (as it was done for RadDropDownList)?

GridView

answered on 16 Jan 2024

1 answer

38 views

Scrolling grid view with custom column and cells visualy "shuffles" data.

Hello,

I created a custom column and cell in my grid following the progress-bar example

https://docs.telerik.com/devtools/winforms/controls/gridview/cells/creating-custom-cells

But I have modified it so that I can view either a textBoxElement or a dropDownListElement depending on what data is in the cell. It all seems to work just fine until I scroll the grid. Scrolling visualy shuffles the data in the custom column. I've tried to take the cell-formatting route but without success. Is it possible to achieve this result somehow?

 Public Class GridParameterValueElement
        Inherits GridDataCellElement

        Public Sub New(ByVal column As GridViewColumn, ByVal row As GridRowElement)
            MyBase.New(column, row)
        End Sub

        Private isInitialized As Boolean
        Private firstTimeIndexChanged As Boolean = True
        Private dropDown As RadDropDownListElement
        Private textBox As RadTextBoxElement
        Protected Overrides Sub CreateChildElements()
            MyBase.CreateChildElements()
            dropDown = New RadDropDownListElement() With { 
                .DropDownStyle = Telerik.WinControls.RadDropDownStyle.DropDownList
            }
            textBox = New RadTextBoxElement() With {
                .Enabled = True,
                .ClickMode = Telerik.WinControls.ClickMode.Press,
                .ZIndex = -1
            }
            If Me.Children.Contains(dropDown) Then Me.Children.Remove(dropDown)
            If Me.Children.Contains(textBox) Then Me.Children.Remove(textBox)
            Me.Children.Add(dropDown)
            Me.Children.Add(textBox)
            AddHandler dropDown.SelectedIndexChanged, AddressOf SelectedIndexChanged
            AddHandler textBox.TextChanged, AddressOf TextInBoxChanged
            'AddHandler textBox.Click, AddressOf TextBox_Click

        End Sub

        Protected Overrides Sub DisposeManagedResources()
            RemoveHandler dropDown.SelectedIndexChanged, AddressOf SelectedIndexChanged
            RemoveHandler textBox.TextChanged, AddressOf TextInBoxChanged
            MyBase.DisposeManagedResources()
        End Sub
            
        'Private Sub TextBox_Click(sender As Object, e As EventArgs)
        '    Dim test  = sender
        'End Sub


        Public Overrides Sub SetContent()
            MyBase.SetContent()

            If Me.RowInfo.Cells("DisplayValue").Tag IsNot Nothing Then

                If Not Me.isInitialized Then 
                    If Me.Children.Contains(textBox) Then Me.Children.Remove(textBox)

                    With Me.dropDown
                        .DataSource = Me.RowInfo.Cells("DisplayValue").Tag
                        .ValueMember = ("DevelopmentTypeParameterValueId")
                        .DisplayMember = ("ParameterValue")
                    End With 
                End If

                If Me.RowInfo.Tag IsNot Nothing Then
                    RemoveHandler dropDown.SelectedIndexChanged, AddressOf SelectedIndexChanged
                    dropDown.SelectedIndex = DirectCast(Me.RowInfo.Tag, Integer)
                    AddHandler dropDown.SelectedIndexChanged, AddressOf SelectedIndexChanged
                Else
                    RemoveHandler dropDown.SelectedIndexChanged, AddressOf SelectedIndexChanged
                    dropDown.SelectedIndex = -1
                    AddHandler dropDown.SelectedIndexChanged, AddressOf SelectedIndexChanged
                End If

            ElseIf Me.Value IsNot Nothing AndAlso Me.Value IsNot DBNull.Value Then

                If Not Me.isInitialized Then 
                    If Me.Children.Contains(dropDown) Then Me.Children.Remove(dropDown)
                    Me.textBox.Text = CStr(Me.Value)
                End If
       
            End If

            Me.isInitialized = True
        
        End Sub


        Protected Overrides ReadOnly Property ThemeEffectiveType() As Type
            Get
                Return GetType(GridDataCellElement)
            End Get
        End Property

        Public Overrides Function IsCompatible(ByVal data As GridViewColumn, ByVal context As Object) As Boolean
            Return TypeOf data Is GridViewParameterValueColumn AndAlso TypeOf context Is GridDataRowElement
        End Function

    End Class
    
    Public Class GridViewParameterValueColumn
        Inherits GridViewDataColumn
        Public Sub New(ByVal fieldName As String)
            MyBase.New(fieldName)
        End Sub
        Public Overrides Function GetCellType(ByVal row As GridViewRowInfo) As Type
            If TypeOf row Is GridViewDataRowInfo Then
                Return GetType(GridParameterValueElement)
            End If
            Return MyBase.GetCellType(row)
        End Function
    End Class

DropDownList

GridView

TextBox

answered on 16 Jan 2024

2 answers

28 views

RadGridView - Avoid CurrentCell auto selection

Hi,

I would like to have a grid with no cell selected by default. So every time it is loaded no CurrentCell is selected. Same when there is no selection and the grid is sorted by a column.

Right now, the grid marks the first cell as CurrentCell when it is loaded. I could solve it using the .ClearSelection() method but then I have the same problem when sorting: the first cell is marked as selected.

How can avoid this behavior and only set the CurrentCell when the user marks it?

GridView