Questions on UI for WinForms Forum

1 answer

263 views

During the CellBeginEdit event I need to supply a default value for the cell if there is no data in the cell and only during an Edit event. I initialized the default value during the CellEditorInitialized event and all works, the default value appears.

    
            Private Sub gv_CellEditorInitialized(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.GridViewCellEventArgs) Handles gv.CellEditorInitialized  
        
                If TypeOf gv.ActiveEditor Is RadTextBoxEditor Then 
        
                    gv.ActiveEditor.Value = IIf(object.Data= 0, "",object.Data)  
        
                End If 
        
            End Sub

Now when the Enter Key is pressed (accepting the default value) the CellEndEdit event is fired and I have the following code:

    
            If IsNumeric(e.Value.ToString) Then 
        
              object.data = e.Value  
        
            End If

The issue is that the Cell Value (e.value) is never equal to the default value, it's empty.

Any help greatly appreciated.

GridView

answered on 18 Nov 2009

3 answers

193 views

Initializing RadTreeNodes to expanded

What's the recommended solution for expanding a tree view when bound to an object data source. The created nodes are collapsed by default and I don't see a way to change the default behavior, nor do I see any events indicating when a node is added

Treeview

answered on 18 Nov 2009

1 answer

149 views

Strange behavior with red color

Hello!

I have a really strange behavior with my project. If I put a RadImageButton to the ToolStripItem and I assign an image with red in it, it is not showing it. In design mode everything works fine, but as soon as I start the program (even from VS), I got an empty space for the image.

I tried with several pictures (mainly with cancel and stop and so on), but as soon as the red appears, my image disappear. Other images works fine. The images are all pngs with transparent background.

I attached two screenshots and you can download a simple project from http://www.wellensteyn.ro/temp/HQ.ZIP

Does anybody experienced something like this? What can be the problem?

Thanks: Botond

Toolstrip (obsolete as of Q3 2010)

answered on 18 Nov 2009

3 answers

494 views

GridViewComboBoxColumn: let user add values that are not in datasource

Hi,

I have a GridView with a GridViewComboBoxColumn that has a list of strings as the datasource and is bound to a string property in my ViewModel. Is it possible to let the user add new values to the string-list by typing in the GridViewComboBoxColumn editor and not reject those values when they are not already in the list?

At the moment, when I type a string that is not already in the bound list, the string is saved in the editor (when I enter the cell again after leaving it, the value is still there) but not propagated through the ValueChanging event and also not written to the underlying ViewModel.

I'm looking for a way to either

Add the new value directly to the string-list and to the ViewModel's property
Get notified about the change with the new, not-in-list value and be able to put it in the string-list manually

Is there a way to do this?

Thanks in advance.

GridView

answered on 18 Nov 2009

1 answer

235 views

Rad Chart Printing

I'm struggling with an easy (so it seems) task:

print a chart on a landscape A4 sheet of paper so that the chart fits on the page and uses optimum space.

Any Pointers?

Regards
Erwin

Chart (obsolete as of Q1 2013)

answered on 18 Nov 2009

5 answers

400 views

[Solved] RADDOCK TOOLTABSTRIP

Hi there,

how can i disable close button which is on the right top corner of the toolwindow?
I have tried Caption visible property. But i want the other two button to be visible and only close button to be disabled.

Thanks,
Satyajeet

Dock

answered on 18 Nov 2009

1 answer

99 views

Adding a RadListBoxElement to a custom cell

Hi.

I need a box with scrollbars in a custom cell i am building. I haven't been able to accomplish this. What I have at the moment is a RadPanelElement with the text as html which looks OK, but there is no scroll bar in a panelelement. I would like to add a RadListBoxElement but the items do not show. I have set the minsize as stated in another thread.

Thank you

/ jorge

GridView

answered on 17 Nov 2009

1 answer

579 views

Hiding dropdown arrow

Hi,
Is there any way to hide the dropdown arrow in order to create an autocomplete textbox? I know you can do it in your ASP controls but I can't find an equivalent way to do it in the winforms controls. Thanks

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 17 Nov 2009

9 answers

222 views

Imprope Column Alignments on Conditional Format Rows

On Rows that have ConditionalFormattingObject's on one or more Columns, it's ignoring at least the MiddleRight (if not all) value of the TextAlignment Property and left-aligning at least the numeric (if not all types of) Columns. I verified that the TextAlignment Property is set to MiddleRight before and after adding ConditionalFormattingObject's and before and after calling the Show method on the Form.

Telerik 2009Q2 (2009.2.9.729), VS 2005 (v8.0.50727.762 SP.050727-7600), XP SP3 on Core2Duo 2.99GHZ with 3GB.

GridView

answered on 17 Nov 2009

6 answers

335 views

[Solved] How updating SummaryRowsBottom

Hi,
i'm trying to update SummaryRowsBottom values.

in CellEndEdit I try to do this :

GridViewRowInfo pRowInfo = this.RadGridView_Name.MasterGridViewTemplate.Rows[e.RowIndex].Cells[e.ColumnIndex].RowInfo;
this.RadGridView_Name.MasterGridViewTemplate.SummaryRowsBottom.BeginItemUpdate();
pRowInfo.Cells["CellName"].Value = "10";
this.RadGridView_Name.MasterGridViewTemplate.SummaryRowsBottom.EndItemUpdate();

infact, summary rows are not updated. If i sort my grid, it'll refresh values.

Please help :p

Thanks

GridView

answered on 16 Nov 2009