Questions on UI for WinForms Forum

7 answers

488 views

Hi:

How can I change the row height for the dropdown items? The default is too spaced out; I'd like to reduce the height. Also, the defaul background color of a selected row is orange. Kind'a gross. How can I change that? Finally, I know for teach column, we can use bestfit() to set it's width. Is there a way to set the dropdown width so that is will automatically fit according the the columns. All I see as examples are giving the dropdown width a fixed value (e.g.: = 500). That is dissatisfactory because I have no way of know how wide by individual columns will be - it depends on the subset of data returned. So, I may have lots of extra whit space sometimes (when the combined column with is less that what I've set for the dropdown width). Other times, I need to horizontal scroll to see all the columns because the dropdown width is not set large enough. Neither situation is desired. . .

Thanks!

MultiColumn ComboBox

answered on 23 Aug 2010

3 answers

244 views

[Solved] Problem with cellformatting and horizontal scroll

Hello,

I have a grid with a status column in which I want to place a red o green ball depending the bound value. I've tried to do that with the next code:

Private Sub Grid_CellFormatting(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.CellFormattingEventArgs) _

Handles gridPedidos.CellFormatting, _

gridChrono.CellFormatting, _

gridCentros.CellFormatting, _

gridIncidencias.CellFormatting, _

gridIncidenciasPFR.CellFormatting, _

gridPedidosWeb.CellFormatting

e.CellElement.Image = Nothing

Dim column As GridViewCommandColumn = TryCast(e.CellElement.ColumnInfo, GridViewCommandColumn)

If column IsNot Nothing Then

Select Case column.UniqueName

Case "Txt"

CType(e.CellElement.Children(0), RadButtonElement).Image = My.Resources.document_text

CType(e.CellElement.Children(0), RadButtonElement).ImageAlignment = ImageLayout.Center

Case "Datos"

CType(e.CellElement.Children(0), RadButtonElement).Image = My.Resources.table_view

CType(e.CellElement.Children(0), RadButtonElement).ImageAlignment = ImageLayout.Center

End Select

End If

If e.CellElement.ColumnInfo.Name = "Status" AndAlso TypeOf e.CellElement.RowInfo Is GridViewDataRowInfo Then

Dim Status As Integer = CInt(e.CellElement.RowInfo.Cells("Status").Value)

If Status = 0 Then

e.CellElement.Image = My.Resources.button_green

Else

e.CellElement.Image = My.Resources.button_red

End If

e.CellElement.Text = ""

End If

End Sub

Executing the program the status column is draw right as you can see in the image1 attached. But scrolling horizontally right and left, the red and green balls are showed in other columns (image2)

Thanks in advance
Blas

GridView

answered on 23 Aug 2010

1 answer

159 views

Visual Studio crashes while in "Edit UI Elements" of RadTextBox

I am using Visual Studio 2008 with the latest Telerik Winforms. If, for example, I drag a RadTextBox from the toolbox, and click "Edit UI Elements". Then, I choose FillPrimitive and attempt to set SmoothingMode to something like, say, "Invalid" (among other options)

Then immediately Visual Studio would say RadTextBox has thrown an exception in the designer and has been disabled. Error message is "Parameter is not valid" and no stack trace is available. The "element hierarchy editor " dialog is closed and VS hangs with 100% CPU usage (I have to terminate devenv.exe task to recover).

I know this is not a valid use case but should this be handled more gracefully? The exception dialog is OK but at least VS should not hang.

Themes and Visual Style Builder

answered on 23 Aug 2010

1 answer

134 views

Modify Filter Behavior

I am trying to change the filter element behavior of a ComboBoxColumn. I would like the ComboBoxColumn filter element to behave identical to the filter element for a TextBoxColumn. I need the filtering to be textbased instead of a drop down and I need the DisplayElement to be filtered as opposed to filtering the ValueMember. Is this possible?

GridView

answered on 23 Aug 2010

3 answers

177 views

AppointmentSelected Not Firing in Timeline View

When we have the scheduler set to show the Timeline view, the AppointmentSelected and AppointmentSelecting events are not firing. Anyone have a solution to this?

Thanks!

Scheduler and Reminder

answered on 20 Aug 2010

3 answers

244 views

Problem setting background color of a row

hi,
I recently upgraded to 2010 Q2 and since then I get an error: 'Object Reference not set to an instance of an object' on this line:

e.RowElement.BackColor =

CType(_colourConvert.ConvertFromString(e.RowElement.RowInfo.Cells(_StatusColour).Value().ToString), System.Drawing.Color)

Any help would b appreciated.

GridView

answered on 20 Aug 2010

1 answer

171 views

separator in Radcombobox

Hello,

I have added a radcomboitem as like -----------
If i select that item value it should not get selected and have to function like separator.
I have set that item shape as customshape1, which doesnt allow user to select -------------
but am able to select it using keyboard arrow keys, how to restrict that?

Thank you
Jayanthi

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 20 Aug 2010

1 answer

278 views

Scroll speed with mouse wheel

Hi,

When I open the drowpdown of a multicolumnbox and use the scrollbar to reach lower items, the scroll speed is fast. However, when I use the scroll wheel on the mouse, the scroll speed is very slow. Is there anything I can do to speed up the mouse wheel scroll speed?

Regards,
Conrad

MultiColumn ComboBox

answered on 20 Aug 2010

3 answers

281 views

RadPanel and RadLabel anchor problem

Hi,

I have a really strange situation. I have a form that has a radpanel control and all my others controls are on the panel. If I put a RadLabel on the right bottom and if I set the anchor of the label to bottom-right, the location of the label is change.

Here is my setting :

Me.RadPanel1.Anchor = CType((((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Bottom) _

Or System.Windows.Forms.AnchorStyles.Left) _

Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)

Me.RadPanel1.Controls.Add(Me.RadLabel1)

Me.RadPanel1.Location = New System.Drawing.Point(603, 385)

Me.RadPanel1.Name = "RadPanel1"

Me.RadPanel1.Size = New System.Drawing.Size(200, 100)

Me.RadPanel1.TabIndex = 14

Me.RadPanel1.Text = "RadPanel1"

Me

.RadLabel1.Anchor = CType((System.Windows.Forms.AnchorStyles.Bottom Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)

Me.RadLabel1.Location = New System.Drawing.Point(138, 83)

Me.RadLabel1.Name = "RadLabel1"

Me.RadLabel1.Size = New System.Drawing.Size(59, 14)

Me.RadLabel1.TabIndex = 0

Me.RadLabel1.Text = "RadLabel1"

At runtime in immediate windows, i get:

?me.RadLabel1.Location

{X = 77 Y = 67}

Empty: {X = 0 Y = 0}

IsEmpty: False

X: 77

Y: 67

Any idea of what's going wrong?

Panel

answered on 20 Aug 2010

1 answer

182 views

Serialization problem

Hi,

I have several problem when trying to develop app by RadDock control.

1. I use method "SaveToXml" by saving as Strem or TextWritter format, but it does not work, could you give me a simple example? In my App, I want to save as System.IO.Stream and then save in memory.

Dim stream as System.IO.Stream

RadDock1.SaveToXml(stream)

2. Is there any property I can set to restrict the ToolWindow and do not let it be dragging outside the RadDock?

3. Can I disable the center image of DockingGuideTemplate to restrict the ToolWindow became TabbedDocument, like this http://www.telerik.com/help/silverlight/raddocking-features-compass.html

Dock

answered on 20 Aug 2010