Questions on UI for WinForms Forum

1 answer

296 views

What's the best way to select/replace specified docfragment content inserted programmatically ?

Hi Telerik Forum,
I'd like to put a bookmark (or another marker) on severals fragment doc (inserted programmatically into the radrichtexteditor) in order to easily select them / delete them / replace the whole text/table inside them. I tried to use textrange object in order to do it but without success.
I don't know what's the best approach to do theses actions above.

Some precision about my app :
* my paragraphs text comes from database in html format, so i use htmlprovider to insert them into my final document
* user can modify paragraph with different buttons in order to change the defaults paragraphs generated before

Thx for your help :)

Here's my sample code :

Shared Sub GenerateDocument(rte As RadRichTextEditor)

Dim document = New RadDocument()

rte.Document = document

Dim htmlProvider = New HtmlFormatProvider()

Dim parHtml1 =

"<span>Start of Paragrah1</span><br/><table style='border:1px solid black'><tr><td>Desc.</td><td>Value</td></tr><tr><td>Variable1</td><td>10.23</td></tr></table>Some text after the table<br/><span>End of Paragrah1</span><br/>"

Dim parHtml2 =

"<span>Start of Paragrah2</span><br/>Some text before creating table<table style='border:1px solid black'><tr><td>Desc.</td><td>Value</td></tr><tr><td>Variable2</td><td>50.18</td></tr></table><br/><span>End of Paragrah2</span><br/>"

'Converting html to raddoc

Dim docPar1 = htmlProvider.Import(parHtml1)

Dim docPar2 = htmlProvider.Import(parHtml2)

'Creating fragments

Dim fragmentPar1 = New DocumentFragment(docPar1)

Dim fragmentPar2 = New DocumentFragment(docPar2)

Dim documentEditor As New RadDocumentEditor(document)

'Inserting paragraph 1

rte.Document.CaretPosition.MoveToLastPositionInDocument()

documentEditor.InsertBookmark("bookmarkPar1")

documentEditor.InsertFragment(fragmentPar1)

'Inserting paragraph 2

rte.Document.CaretPosition.MoveToLastPositionInDocument()

documentEditor.InsertBookmark("bookmarkPar2")

documentEditor.InsertFragment(fragmentPar2)

'Trying of selecting / delete / replace all content in specified bookmark (that doesn't work)

SelectAndUpdateContentBookmark("bookmarkPar1", rte, String.Empty) 'only select

SelectAndUpdateContentBookmark("bookmarkPar2", rte, "New content") 'select and replace with new text

End Sub

Shared Sub SelectAndUpdateContentBookmark(ByVal bookmarkName As String, rte As RadRichTextEditor, newContent As String)

rte.Focus()

Dim bookmarks() As BookmarkRangeStart = rte.Document.GetAllBookmarks().ToArray()

Dim posstart As New DocumentPosition(rte.Document)

Dim posend As New DocumentPosition(rte.Document)

Dim item = bookmarks.Where(Function(x) x.Name = bookmarkName).FirstOrDefault

If item IsNot Nothing Then

rte.Document.GoToBookmark(item)

posstart.MoveToInline(TryCast(item.FirstLayoutBox, InlineLayoutBox), 0)

posend.MoveToInline(TryCast(item.End.FirstLayoutBox, InlineLayoutBox), 0)

posstart.MoveToNextInline()

rte.Document.Selection.SetSelectionStart(posstart)

rte.Document.Selection.AddSelectionEnd(posend)

'Replacing with new content

If Not String.IsNullOrEmpty(newContent) Then

rte.Delete(False)

rte.Insert(newContent)

End If

End Sub

RichTextEditor

answered on 24 Mar 2016

1 answer

117 views

Gradient in legend

I have a series where I am using the "LabelFormatting" event to color scatter points individually, and I would like to paint the legend item as a gradient to reflect that is not a single color but I cannot tell how to accomplish it. I am also using something I saw in the forums for adding checkboxes to the legend via handling the VisualItemCreating and replacing with my own derived LegendItemElement. After creating the child elements I am looking at the legend item marker and I see a lot of properties for gradients but no way to activate them.

I've also tried setting the BackColor and BackColor2 of the series, as well as NumberOfColors = 2 with no effect.

ChartView

answered on 24 Mar 2016

1 answer

197 views

Virtual Mode with Just-In-Time Data Loading

Dear support staff,
I am currently working on a project with a very large table(millions of records) in a remote database using c# and mysql database.
Without going in to too much details, I use the datagridview in VS2010 with the (Virtual Mode with Just-In-Time Data Loading)
as illustrated in this article:

https://msdn.microsoft.com/en-us/library/ms171624%28v=vs.110%29.aspx

Does your gridview support the Virtual Mode with Just-In-Time Data Loading or any thing similar to it that retrieve query result in potions?

yours Murad

GridView

answered on 24 Mar 2016

1 answer

167 views

Custom Editor - Missing first Keystroke

I am evaluating RadGridview. I need to create lots of custom editors for my upcoming project. To begin with, I just created a simple texteditor with the following code (I referred you demo code for this) .The issue is, the control losing the first key stroke. Suppose I start to edit a column by typing "John" then the column only showing "ohn".

Did I miss something ??

class MyTextEditor : BaseGridEditor

{

public RadFormProductList ListForm { get; set; }

protected override RadElement CreateEditorElement()

{

var editor = new MyTextEditorElement();

return editor;

}

public override object Value

{

get

{

MyTextEditorElement editor = (MyTextEditorElement)this.EditorElement;

return editor.Text;

}

set

{

MyTextEditorElement editor = (MyTextEditorElement)this.EditorElement;

if (value != null && value != DBNull.Value)

{

editor.Text = value.ToString();

}

else

{

editor.Text = "";

}

public class MyTextEditorElement : RadTextBoxElement

{

public MyTextEditorElement()

{

this.BackColor = Color.White;

this.ShowBorder = false;

}

protected override Type ThemeEffectiveType

{

get

{

return typeof(RadTextBoxEditorElement);

}

GridView

answered on 24 Mar 2016

3 answers

93 views

ScatterSeries.Shape = DiamondShape

I have a scatter series, and setting the Shape to Telerik.WinControls.UI.DiamondShape does not work. It gives me no markers at all.

ChartView

answered on 24 Mar 2016

2 answers

174 views

Cell Style ViewCellFormatting

With this code I get the following (NOT_OK.png)

01.Private Sub RadGridView1_ViewCellFormatting(sender As Object, e As CellFormattingEventArgs) Handles RadGridView1.ViewCellFormatting

02. If TypeOf e.CellElement Is GridHeaderCellElement Then

03. With e.CellElement

04. Dim myFont As New Font(New FontFamily("Calibri"), 10.0F, FontStyle.Bold)

05.

06. If InStr(.Text, "IN") > 0 Then

07. xColor = Color.FromArgb(150, 54, 52)

08. ElseIf InStr(.Text, "OUT") > 0 Then

09. xColor = Color.FromArgb(54, 96, 146)

10. ElseIf .Text = "Fecha" Then

11. xColor = Color.FromArgb(38, 38, 38)

12. End If

13.

14. .DrawBorder = True

15. .DrawFill = True

16.

17. .Font = myFont

18. .ForeColor = Color.White

19. .GradientStyle = GradientStyles.Solid

20. .BackColor = xColor

21. End With

22. Else

23. Dim xColor As Color = Color.Red

24. Dim xWidth As Integer = 5

25. With e.CellElement

26. '.DrawFill = True

27. '.NumberOfColors = 1

28. '.BorderBoxStyle = BorderBoxStyle.FourBorders

29. Select Case .ColumnIndex

30. Case 9 '0, 9, 16

31. .BorderRightColor = xColor

32. .BorderRightWidth = xWidth

33. End Select

34. End With

35. End If

36.End Sub

what I need is OK.png

Thank you,

GridView

answered on 23 Mar 2016

3 answers

265 views

Event after PDF contents loaded

Hi,

I need an event that fire only after the contents of PDF is displayed. The DocumentLoaded is fired after the .pdf load, but not displayed yet.

Thanks

Paulo

PdfViewer and PdfViewerNavigator

answered on 23 Mar 2016

1 answer

87 views

bug: property builder corrupts form

In certain cases, the property builder totally corrupts your windows form and makes the Rad grid unsable, undeletable and un-editable . It happens If you inadvertently click "Open Property Builder" on a RadGridView while your project is running (yes, sometimes you forget it is running and still have the form designer window open), if you try and make some changes to the MasterTemplate and click "Ok" it renames your grid to "MasterTemplate" and makes it unsable, even while your program is running.

The grid then becomes corrupt and you cant delete it or fix it.

Test it by starting a new VB winforms project in VS2015, drag a radgrid onto the form, run the exe in VS and then click on property builder on the rad grid. make a few changes to master template and click ok.

Your form will now be unrecoverably corrupt.

GridView

answered on 22 Mar 2016

3 answers

548 views

connect to SQLite

Have someone tried to connect the ganttview with a SQLite database?

GanttView

answered on 22 Mar 2016

3 answers

305 views

Scheduler and MySQL Database

Good day!

It is necessary that the Scheduler worked with MySQL database and not MsAccess. And, preferably, to explain the connection and filling in the data via code and not using the Visual Studio.

Best regards, Me!

Scheduler and Reminder

answered on 22 Mar 2016