Questions on UI for WinForms Forum

3 answers

124 views

How to highlight the matched text part of filtered node?

I want to implement the effect that highlight the matched text part of filtered node. The visual effect is just like the solution manager of visual studio. How can I do it? Thanks!

Treeview

answered on 14 Jan 2020

3 answers

58 views

Per-Grid Localization

Hi,

In my program I have two virtual grids in the same form, viewable and usable simultaneously. By selecting elements in one grid you change what data is loaded into the other. For the sake of supplying more context-sensitive help, I had intended to replace the RadVirtualGridStringId.NoDataText string in the second grid with a more specific prompt depending on why no data is found. This works, but in the event that the first grid was unable to be populated with data, it needs to have different text to the second.

The Localization page explains how to change the LocalizationProvider for all virtual grids, but is there a way to set the provider of a specific instance of the grid?

Thanks

VirtualGrid

answered on 14 Jan 2020

6 answers

1.0K+ views

change the font size of the editor

Hello

I have a small problem which I couldn't find any solution, even though it sounds so simple... The font in my RichTextEditor is too big (see the attached image for an example how it looks). I'm wondering how it's possible to change this font size to a smaller font. I tried several things such as

txtText.ChangeFontSize(4);

or

txtText.RichTextBoxElement.ChangeFontSize(4);

I couldn't find anything about it in the documentation. Is it even possible to change the displayed font size?

Best Regards,
Roman

RichTextEditor

answered on 13 Jan 2020

1 answer

482 views

GridView Cancel AddNewRow

Hi,

I've recently added some simple data validation to my grid which are a bunch of checks that look rather like this:

if (Convert.ToInt32(e.Row.Cells["Category"].Value) == 0)

{

e.Cancel = true;

e.Row.ErrorText = "Project Must have a Category";

}

at the end of the rowformatting event I have this:

if (e.Cancel)

{

if (MessageBox.Show(e.Row.ErrorText, "ERROR", MessageBoxButtons.OKCancel) == DialogResult.Cancel)

{

//TODO cancel row add

//if (radGridView.MasterView.TableAddNewRow.IsCurrent)

this.radGridView.MasterView.TableAddNewRow.CancelAddNewRow();

radGridView.EndEdit();

}

This gets the focus out of the AddRow section. However when I click on any other row, the event fires... but the row that it's referencing is still the new row data, which means that I get the error message again and again and again! How do I properly cancel the AddRow so that the gridView can return to it's default behavior?

Thanks

GridView

answered on 13 Jan 2020

1 answer

104 views

RadGridView Edit UI Elements looks wrong

Recently I needed to dive into the UI Elements at Design Time to make some adjustments...this project is several years old and it's been a while since I've been into this dialog box so the issue may be months old and I simply didn't notice.

Anyway here's the issue: when I click the tiny right-arrow at the top right corner of the grid in Design Mode I see the usual helper-popup window.

I select the 4th item down per-usual "Edit UI Elements" and get the Element hierarchy editor.

Under Control element structure I am pretty sure there used to be a fair number of branches listed under the main branch but now I only see the main branch with no way of expanding to see what lives under it (see attached picture below.)

Am I wrong? Does the RadGridView NOT have any editable elements? I'm certain once upon a time I came in here to edit the Column Header Height and a few of the colors.

I have reinstalled Telerik R3 2018 (The version this application uses)

I have re-copied the DLLs from the installation folder to the application's "Libraries" folder to make sure I had not accidentally overwritten one or more.

I have created a 100% new WinForm and placed a grid on it to check - same results.

I created a 100% new Telerik Project and again placed a grid on the main form - same results.

Any advice/suggestions you can offer would be greatly appreciated.

-Curtis

GridView

answered on 10 Jan 2020

1 answer

160 views

How do we make multiple selections?

I cannot make multiple selections in Multi Column.

I wonder what I have to watch out for.

MultiColumn ComboBox

answered on 10 Jan 2020

3 answers

189 views

Backstage View Mode, item height

Hi,

I've got a radPageView in Backstage view mode, how to set the height of an item in the tab list ?

I've been able to achieve this with this code snippet

foreach (RadPageViewPage page in this.radPageView.Pages)

{

page.Item.MaxSize = new Size(0, 20);

}

But I want to do this in design mode, not programatically.

Thanks

PageView

answered on 10 Jan 2020

5 answers

268 views

Chat - How to choose text and copy

Hello, how can I choose a text message and copy it. The attribute CanFocus = True but I cannot select the text message.

Please let me know how to solve my problem. Tks

Conversational UI, Chat

answered on 08 Jan 2020

1 answer

315 views

Drag&Drop: Get Drop-Location of Drop-Element

Hello and a happy new Year!!!

I implement a drag&drop-function from RadPanels inside a System.Windows.Forms.FlowLayoutPanel.

When i come to the DragDrop-Event the "DragEventArgs e" only have the Location (e.X / e.Y) of the display not from the FlowLayoutPanel.

Where can i get the location of the dropped RadPanel?

Another question: Is there an event of moving the dragged RadPanel? I didn´t found that. I need this for animation / show the dragged RadPanel.

Best regards, Martin

General Discussions

answered on 08 Jan 2020

3 answers

90 views

RadGridView_CellFormatting No Effect

Hi,

I've a problem with my CellFormating.
More precisely with "FormatString" which does not work properly.

I filled my RadGridView with the help of a list.
Everything is working properly.
Here is a bit of my implementation:

Public Class Liste_DossiersVO

'...

Private dvo_prix_public As String

'...

Public Property Prix_Public() As String

Get

Return dvo_prix_public

End Get

Set(value As String)

dvo_prix_public = value

End Set

End Property

Public Sub New(...,

Prix_Public As String,

...)

Me.Prix_Public = Prix_Public

End Sub

Default Public ReadOnly Property Item(ByVal i As Integer) As Object

Get

Select Case i

...

Case 6

...

Case Else

Return [String].Empty

End Select

End Get

End Property

End Class

Public Sub Binding_Liste_DossiersVO()

Using db As New NpgsqlConnection

Dim sql As NpgsqlCommand = db.CreateCommand()

Try

db.ConnectionString = ParamSQL

db.Open()

If db.State = ConnectionState.Open Then

sql.Parameters.Clear()

sql.CommandType = CommandType.Text

sql.CommandText = "SELECT ...

FROM "...;"

Dim reader As IDataReader = sql.ExecuteReader()

Data_GridView_VO.Clear()

While reader.Read()

Dim LVO As New Liste_DossiersVO(Convert.ToString(reader(0)),

Convert.ToString(reader(1)),

Convert.ToString(reader(2)),

Convert.ToString(reader(3)),

Convert.ToString(reader(4)),

Convert.ToString(reader(5)),

Convert.ToString(reader(6)), 'dvo_prix_public --> Prix_Public

Convert.ToString(reader(7)))

Data_RadGridView1.Add(LVO)

End While

End If

db.Close()

Catch ex As Exception

db.Close()

ErrorBox.RadTextBoxControl1.Text = ex.ToString

ErrorBox.Show()

End Try

End Using

End Sub

Public Sub BindToRadGridView1()

Home.GridView_VO.MasterTemplate.AllowAddNewRow = False

Home.GridView_VO.MasterTemplate.AutoGenerateColumns = False

Home.GridView_VO.DataSource = Nothing

Home.GridView_VO.TableElement.BeginUpdate()

Home.GridView_VO.MasterTemplate.Columns.Clear()

'...

Home.GridView_VO.MasterTemplate.Columns.Add(New GridViewDecimalColumn("PRIX PUBLIC", "Prix_Public"))

For i As Integer = 0 To Home.GridView_VO.MasterTemplate.Columns.Count - 1

Home.GridView_VO.MasterTemplate.Columns(i).Width = 150

Next i

Home.GridView_VO.TableElement.EndUpdate(False)

Home.GridView_VO.DataSource = Data_GridView_VO

End Sub

Then when I try to format the display of my 6th column with my currency format it doesn't work.
The rest works well.
For example, a color change works without problems.
Also, if I add € to "{0: C}" -> "{0: C} €" the currency sign looks good but the formatting is not the right one -> € 1,250.00
The correct form should be € 1,250.00

I tried several implementation attempts but never got the right result :

Private Sub RadGridView1_CellFormatting(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.CellFormattingEventArgs) Handles RadGridView1.CellFormatting

If e.CellElement.ColumnInfo.Name = "PRIX PUBLIC" Then

If e.CellElement.Text <> "" Then

e.CellElement.Text = String.Format(New CultureInfo("fr-FR"), "{0:C}", e.CellElement.Value)

End If

End Sub

Or simple

Me.RadGridView1.Columns(6).FormatInfo = CultureInfo.CreateSpecificCulture("fr-FR")

Me.RadGridView1.Columns(6).FormatString = "{0:C}"

Doesn't work.

Do you have any idea?

A solution ?
Thank you.

GridView