Questions on UI for WinForms Forum

1 answer

57 views

Hey guys, is it possible to create a List of GridViewDataColumn avaliable at design time? Like u do in the GridRelations(attached), I've tried reading your TemplateCollectionEditor(at Telerik.WinControls.UI.Design.dll, same namespace) class, but didn't understand anything.

Here is my class where I want' use it

public class ColunaTextoAjuda : IAjuda

{

public GridViewDataColumn Coluna { get; set; }

[Browsable(true)]

[DefaultValue("")]

[Editor(

"Telerik.WinControls.UI.Design.TextOrHtmlSelector, Telerik.WinControls.UI.Design, Version=2018.1.116.40, Culture=neutral, PublicKeyToken=5bb2a467cbec794e"

, typeof(UITypeEditor))]

public string Texto { get; set; }

}

GridView

answered on 01 Nov 2018

8 answers

801 views

How to merge multiple RadDocuments into one RadDocument?

Hello All,

I have a requirement to print a number of RTF notes as a single document. I tried to create a RadDocument for each note and merge them, but unable to get it done.
Please guide me through the appropriate way to achieve this functionality.

Thanks
Pawan

RichTextBox (obsolete as of Q3 2014 SP1)

answered on 01 Nov 2018

3 answers

133 views

changing selection as page number changes

I've noticed that Grid.Selection.SelectedRegions returns the dataset row number values whenever a paging-enabled virtual grid page changes. i.e the selection may be on a different page than the one on view.

I'm having problems generating elegant code for moving the regions from page to page so they select from the page of data that's on view, including cases where a full page of data has less rows than the original selection.

The help file isn't very explanatory,

radVirtualGrid1.VirtualGridElement.Selection.BeginSelection(3, 1, radVirtualGrid1.MasterViewInfo, true); radVirtualGrid1.VirtualGridElement.Selection.ExtendCurrentRegion(6, 3);

If I've several individual rows selected then how do I manipulate the grid.selection.selectedregions so that I can assign the whole set of regions? following is the code Im trying but Im having a real struggle understanding what Im doing.

01.var selectionRegions = Grid.Selection.SelectedRegions;

02.var offset = Math.Abs(e.NewIndex - Grid.PageIndex);

03.var multiplier = e.NewIndex > Grid.PageIndex

04. ? PageSize * offset

05. : -PageSize * offset;

06.var newRegions = new List<SelectionRegion>();

07.foreach (var region in selectionRegions)

08.{

09. var newRegion = new SelectionRegion(region.Top * multiplier, region.Left,

10. region.Bottom * multiplier, region.Right, region.ViewInfo);

11. newRegions.Add(newRegion);

12.}

13.Grid.Selection.SelectedRegions. <- and here is where everything goes horribly wrong :)

VirtualGrid

answered on 01 Nov 2018

5 answers

476 views

Multicolumncombobox compositefilter too slow

Hi all,

I've implemented a radgridview in my project, and I need one column to search, in this case, a barcode but I have two ways for search it. The barcode and a small code which are related between. So I've implemented a multicolumncombobox and a composite filter to do this. It works, but I have a problem in some cases. When the combobox has a lot of data, the filter which has the property autocompletemode as suggestappend, it is working too slow. For example, I press one key it takes too long time to appear in the column, it appears to be freeze.

Do you know how to improve this? Or there is another control to make this purpose?

Thanks in advance.

Regards,

GridView

answered on 01 Nov 2018

1 answer

266 views

Email validation fails using rad masked edit box

Hi

I have an issue with the validation of email addresses using when the mask type is set to EMail, it is not allowing the following style of email address "t.harris@working.group" (note this is not the exact email address of obvious reasons), it does work when i append .co.uk or .com on the end.

What are the validation criteria for this EMail validation ?

Do I have to use an edit mask instead ? If so can you give an example which will allow above email address as well as those in more "normal" formats ?

Regards

Toby

MaskedEditBox

answered on 01 Nov 2018

8 answers

236 views

Masked Edit Box validation with Regex

Hello All,

Is it possible to validate the text enter as the user types (ie validate on TextChanged) as opposed to validating as focus is changed?

Thanks!!

MaskedEditBox

answered on 01 Nov 2018

1 answer

100 views

Strange behavior (PropertyGridSpinEditor)

if you completely delete the contents in the editor and press the <Enter> key, then int.MinValue is returned.

Why? In this case, you must return either null or 0 or do nothing.

PropertyGrid

answered on 31 Oct 2018

3 answers

1.6K+ views

Disable the mouse right click

On Telerik control , when I click the items using mouse right click, it calls the same function of the left click & I'm unable to disable it. Please let me know if there is any property to disable the right click.

Treeview

answered on 31 Oct 2018

1 answer

121 views

Troube adding custom nodes to treeview

Hi,

I'm able to get the samples to work but I'm having trouble adding to my project. It seems that TreeViewElement_CreateNodeElement isn't firing.

Can anyone see what I might be missing? The code below just needs a radtreeview named tvProjectPath.

Thanks in advance!!

Imports Telerik.WinControls.UI

Public Class RadForm1

Private Sub RadForm1_Load(sender As Object, e As EventArgs) Handles Me.Load

Dim rtvTest As Telerik.WinControls.UI.RadTreeView = tvProjectPath

Dim DFSRootNode As New RadTreeNode("Root0")

Dim ProdDataNode As New RadTreeNode("Child1")

Dim JobsNode As New RadTreeNode("Child2")

Dim ProjectRoot As New RadTreeNode("Child3")

'Dim ProjectFolder As New CustomTreeNodeElement()

tvProjectPath.Nodes.Add(DFSRootNode)

DFSRootNode.Nodes.Add(ProdDataNode)

ProdDataNode.Nodes.Add(JobsNode)

JobsNode.Nodes.Add(ProjectRoot)

'ProjectRoot.TreeViewElement =

End Sub

Private Sub CustomNodes_Load(sender As Object, e As EventArgs) Handles Me.Load

Dim test As String = ""

Me.tvProjectPath.ExpandAll()

End Sub

Private Sub TreeViewElement_CreateNodeElement(sender As Object, e As Telerik.WinControls.UI.CreateTreeNodeElementEventArgs)

e.NodeElement = New CustomTreeNodeElement()

End Sub

End Class

Public Class CustomContentElement

Inherits TreeNodeContentElement

Private nodeContentContainer As StackLayoutElement

Private nodeLabel As RadLabelElement

Private nodeTextBox As RadTextBoxControlElement

Protected Overrides ReadOnly Property ThemeEffectiveType() As Type

Get

Return GetType(TreeNodeElement)

End Get

End Property

Protected Overrides Sub InitializeFields()

MyBase.InitializeFields()

Me.StretchHorizontally = True

End Sub

Protected Overrides Sub CreateChildElements()

MyBase.CreateChildElements()

nodeContentContainer = New StackLayoutElement

nodeContentContainer.Orientation = Orientation.Horizontal

nodeContentContainer.StretchHorizontally = True

nodeContentContainer.StretchVertically = False

nodeLabel = New RadLabelElement

Me.Children.Add(nodeLabel)

nodeTextBox = New RadTextBoxControlElement

Me.Children.Add(nodeTextBox)

End Sub

End Class

Public Class CustomTreeNodeElement

Inherits TreeNodeElement

Protected Overrides Function CreateContentElement() As TreeNodeContentElement

Return New CustomContentElement()

'Dim node As RadTreeNode = Me.Data

End Function

Protected Overrides ReadOnly Property ThemeEffectiveType() As Type

Get

Return GetType(TreeNodeElement)

End Get

End Property

End Class

Treeview

answered on 31 Oct 2018

5 answers

138 views

Exception adding any control

I was prompted to download a new version, did so.

Created a new project using option one from the dropdown. Could not add any controls to the default form. I thought it was strange that it said [Download] but tried any ways.

Next I created a new project with option 2, worked fine.

So my question is, how do I use option one marked as [Download] even though I already downloaded it and saw zero errors?

Thanks for your time with this matter.

VS2017 Enterprise

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