Questions on UI for WinForms Forum

1 answer

140 views

I have a read-only grid with two summary rows: Total and Average. The first two columns in the simple example provided in the attached screenshot will not be totaled or averaged. Only the third column will be summarized.

I would like to insert text into the first column of each summary row describing what the value in that row represents ("Total" in the total row and "Average" in the average row). This is also displayed in the attached screenshot.

Is it possible to insert text only into a cell of a summary row without performing any calculations on its associated column?

GridView

answered on 29 May 2012

1 answer

236 views

Feature Request - Add Base64 Encoded Image Support to RadGridView Cells

Hello,

I would like to add a feature request for the RadGridView.

It would be nice if the RadGridView's HTML rendering could support base-64 encoded images, as i use these alot they are very handy because you don't have to have an image file or add a project resource for an image - you just add an img tag with the src as base-64 encoded image data.

Would be nice if i could add a base-64 encoded image + text to the a RadGridView cell contents (where the column's DisableHTMLRendering is set to false of course).

Any chance you guys could add support for this?

Let me know, thanks!

GridView

answered on 29 May 2012

1 answer

128 views

Align Title in RadRibbonForm

Hi,

how can I align the title text of a RadRibbonForm to the left side?
I use the default Office2010Black, Office2010Blue and Office2010Silver themes and the title
is centered.

Regards
Marco

General Discussions

answered on 29 May 2012

1 answer

173 views

change version

Hello
I change the version of Telerik from 2011 Q2 to 2012 Q1 ,but now I have alot of errors in my project wich are about
1-Telerik.WinControls.UI.RadToolStripSeparatorItem()
2-using Telerik.WinControls.UI.ComboBox;
3-using Telerik.WinControls.UI.Grid

please help me what should I do

SplitContainer

answered on 29 May 2012

15 answers

590 views

CheckBox Column gets cleared on scroll

We implemented a Check Box column so that the user can select a series of rows to add to a collection and clicks on a button to submit. When in on click, we check each row for a checked checkbox and add the databounditem to a collection for processsing. I noticed this evening when I check a few rows and scroll those rows off the screen, the values get cleared when I scroll them back into view.

I have read in a few posts that you only maintain data in the current view for performance reasons, but is there a way to turn that off? Or is there another workaround?

Thanks

Dennis

GridView

answered on 29 May 2012

1 answer

82 views

Upgrade

Hello,

I have just inherited a project using Telerik controls from a colleague who is no longer here. I opened the solution and after 25 minutes Telerik timed out and shut down. To resolve this I logged on to Telerik, downloaded the latest version and installed it. Now when I open the solution I get messages of the type:

Could not load file or assembly 'Telerik.WinControls.GridView, Version=....

I understand there is an Upgrade Wizard to resolve this, but I cannot find it, either in the Telerik menu item in VS2010 or in the Start menu.

Any ideas?

General Discussions

answered on 28 May 2012

3 answers

158 views

How to auto display dot dot dot value and full header text?

Please refer the picture from attachment.

Question 1 : How to auto display dot dot dot value when mouse over?
Question 2 : How to auto display full header text when user manually adjust the header size to smaller?

Is possible can be done in telerik?

GridView

answered on 28 May 2012

3 answers

802 views

MultiLine Textbox does not allow multiline

Hi,
I am trying to figure out how to make a radTextbox (with multiline=true) to allow a user to hit the enter key and start a new line.
john

TextBox

answered on 28 May 2012

1 answer

309 views

Cell Focus

I'm trying to prevent cells from being focused. I saw this piece of code on another forum post:

if (gridCellElement != null)

{

if (gridCellElement.IsCurrent)

{

gridCellElement.IsCurrent = false;

gridCellElement.IsCurrentColumn = false;

}

else

{

gridCellElement.ResetValue(LightVisualElement.DrawBorderProperty, ValueResetFlags.Local);

gridCellElement.ResetValue(LightVisualElement.DrawFillProperty, ValueResetFlags.Local);

}

This works until I start editing a cell. I saw something about creating a custom theme, but I do not know how to do that. I am really hoping that there is a property I missed that says "don't draw cell focus", but I can't find it.

GridView

answered on 28 May 2012

5 answers

205 views

AutoCompleteSuggest customised comparer

Hi,

I was wondering if the solution I created below is the best way to do what I want.

I have a list that when the user types in, i'd like the suggestions to pop up, to suggest the items that begin with the text first, but then also include all other items that have that text within it below that.

i.e.
if the list is

aper

aaper

ape

per

pants per

aaa per

and the user types 'p' then I want the list to show

pants per

per

aaa per

aaper

ape

aper

when the user types 'pe' then i want the list to show

per

aaa per

aaper

ape

aper

pants per

when the user types 'per' then i want the list to show

per

aaa per

aaper

aper

pants per

My ApplyFilterToDropDown is an almost copy of the Telerik one, but injecting my comparer instead. I had to do this because if I just set the ItemsSortComparer to mine, then called the base.ApplyFilterToDropDown it always got wiped out, so I resorted to this.

Imports Telerik.WinControls.UI

Public Class Form7

Inherits System.Windows.Forms.Form

'Form overrides dispose to clean up the component list.

<System.Diagnostics.DebuggerNonUserCode()> _

Protected Overrides Sub Dispose(ByVal disposing As Boolean)

Try

If disposing AndAlso components IsNot Nothing Then

components.Dispose()

End If

Finally

MyBase.Dispose(disposing)

End Try

End Sub

'Required by the Windows Form Designer

Private components As System.ComponentModel.IContainer

'NOTE: The following procedure is required by the Windows Form Designer

'It can be modified using the Windows Form Designer.

'Do not modify it using the code editor.

<System.Diagnostics.DebuggerStepThrough()> _

Private Sub InitializeComponent()

Dim RadListDataItem1 As Telerik.WinControls.UI.RadListDataItem = New Telerik.WinControls.UI.RadListDataItem()

Dim RadListDataItem2 As Telerik.WinControls.UI.RadListDataItem = New Telerik.WinControls.UI.RadListDataItem()

Dim RadListDataItem3 As Telerik.WinControls.UI.RadListDataItem = New Telerik.WinControls.UI.RadListDataItem()

Dim RadListDataItem4 As Telerik.WinControls.UI.RadListDataItem = New Telerik.WinControls.UI.RadListDataItem()

Dim RadListDataItem5 As Telerik.WinControls.UI.RadListDataItem = New Telerik.WinControls.UI.RadListDataItem()

Dim RadListDataItem6 As Telerik.WinControls.UI.RadListDataItem = New Telerik.WinControls.UI.RadListDataItem()

Me.RadDropDownList1 = New Telerik.WinControls.UI.RadDropDownList()

CType(Me.RadDropDownList1, System.ComponentModel.ISupportInitialize).BeginInit()

Me.SuspendLayout()

'

'RadDropDownList1

'

Me.RadDropDownList1.AutoCompleteMode = System.Windows.Forms.AutoCompleteMode.SuggestAppend

Me.RadDropDownList1.DropDownAnimationEnabled = True

RadListDataItem1.Text = "aper"

RadListDataItem1.TextWrap = True

RadListDataItem2.Text = "aaper"

RadListDataItem2.TextWrap = True

RadListDataItem3.Text = "ape"

RadListDataItem3.TextWrap = True

RadListDataItem4.Text = "per"

RadListDataItem4.TextWrap = True

RadListDataItem5.Text = "pants per"

RadListDataItem5.TextWrap = True

RadListDataItem6.Text = "aaa per"

RadListDataItem6.TextWrap = True

Me.RadDropDownList1.Items.Add(RadListDataItem1)

Me.RadDropDownList1.Items.Add(RadListDataItem2)

Me.RadDropDownList1.Items.Add(RadListDataItem3)

Me.RadDropDownList1.Items.Add(RadListDataItem4)

Me.RadDropDownList1.Items.Add(RadListDataItem5)

Me.RadDropDownList1.Items.Add(RadListDataItem6)

Me.RadDropDownList1.Location = New System.Drawing.Point(93, 126)

Me.RadDropDownList1.Name = "RadDropDownList1"

Me.RadDropDownList1.ShowImageInEditorArea = True

Me.RadDropDownList1.Size = New System.Drawing.Size(106, 20)

Me.RadDropDownList1.TabIndex = 1

Me.RadDropDownList1.ThemeName = "ControlDefault"

'

'Form7

'

Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)

Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font

Me.ClientSize = New System.Drawing.Size(292, 273)

Me.Controls.Add(Me.RadDropDownList1)

Me.Name = "Form7"

Me.Text = "Form7"

CType(Me.RadDropDownList1, System.ComponentModel.ISupportInitialize).EndInit()

Me.ResumeLayout(False)

Me.PerformLayout()

End Sub

Friend WithEvents RadDropDownList1 As Telerik.WinControls.UI.RadDropDownList

Public Class CustomAutoCompleteSuggestHelper

Inherits AutoCompleteSuggestHelper

Public Sub New(element As RadDropDownListElement)

MyBase.New(element)

End Sub

Protected Overrides Function DefaultFilter(item As RadListDataItem) As Boolean

Return item.Text.ToLower().Contains(Me.Filter.ToLower())

End Function

Public Overrides Sub AutoComplete(e As KeyPressEventArgs)

MyBase.AutoComplete(e)

If Me.DropDownList.Items.Count > 0 Then

'Me.DropDownList.SelectedIndex = Me.DropDownList.FindString(Me.Filter)

End If

End Sub

Private mFilter As String = String.Empty

Protected Overrides ReadOnly Property Filter As String

Get

Return mFilter

End Get

End Property

Public Overrides Sub ApplyFilterToDropDown(filter As String)

Static filterFirstComparer As ListItemFilterAscendingComparer

mFilter = filter

If String.IsNullOrEmpty(filter) Then

MyBase.ApplyFilterToDropDown(filter)

Return

End If

With Me.DropDownList.ListElement

.SelectionMode = SelectionMode.None

.BeginUpdate()

.Filter = Nothing

.Filter = AddressOf DefaultFilter

.SortStyle = Telerik.WinControls.Enumerations.SortStyle.Ascending

End With

' will move all items that begin with the filter, to the top of the list

If filterFirstComparer Is Nothing Then

filterFirstComparer = New ListItemFilterAscendingComparer With {.filter = filter}

Else

filterFirstComparer.filter = filter

End If

Me.DropDownList.ListElement.ItemsSortComparer = filterFirstComparer

Me.DropDownList.ListElement.EndUpdate()

End Sub

''' <summary>

''' This class is used to compare data items when sorting in ascending order.

''' </summary>

Private Class ListItemFilterAscendingComparer

Implements System.Collections.Generic.IComparer(Of RadListDataItem)

Public Property filter As String

Public Overridable Function Compare(x As RadListDataItem, y As RadListDataItem) As Integer Implements System.Collections.Generic.IComparer(Of Telerik.WinControls.UI.RadListDataItem).Compare

Dim ignoreCase = False

If x.Owner IsNot Nothing Then

ignoreCase = Not x.Owner.CaseSensitiveSort

End If

Dim xStart = x.Text.StartsWith(filter, System.StringComparison.InvariantCultureIgnoreCase)

Dim yStart = y.Text.StartsWith(filter, System.StringComparison.InvariantCultureIgnoreCase)

If xStart AndAlso Not yStart Then

Return -1

ElseIf yStart AndAlso Not xStart Then

Return 1

End If

Return String.Compare(x.Text, y.Text, ignoreCase)