Questions on UI for WinForms Forum

2 answers

465 views

Hi,

may be this question has been solved here but I cannot find it in the different threads. I have a class deriving from RadGridView. For example, say the class Grid in the test namespace. In design mode, the ThemeClassName property is set to the actual class name by the designer, so test.Grid in the example. But the problem is that I cannot find the theme names I want in the drop down list. If I force the ThemeClassName property to "Telerik.WinControls.UI.RadGridView", the drop down list is filled with the right theme names but as soon as I save the file the designer reset the ThemeClassName to test.Grid, as I can see it in the file.
So I found the way to force ThemeClassName = "Telerik.WinControls.UI.RadGridView" in the test.Grid constructor but it works in run time only; I cannot see the theme names in design mode.
What is the good way to proceed to apply themes to a derived class ?

thanks.

Themes and Visual Style Builder

answered on 25 Jul 2009

2 answers

115 views

Error when right click on grouped row

Hello,

If I have a RadgridView and group by a column, colapse all the rows, then right click on one of the rows (on the blue group name in the RadGridView) I get the following error:

Object reference not set to an instance of an object.

at Telerik.WinControls.UI.RadGridView.ValidateColumnChange(GridViewColumn column)

at Telerik.WinControls.UI.GridViewTemplate.SetCurrentColumn(GridViewColumn column, Boolean update, Boolean shift, Boolean control)

at Telerik.WinControls.UI.BaseGridBehavior.SetCurrentPosition(GridRowElement row, GridCellElement cell)

at Telerik.WinControls.UI.BaseGridBehavior.OnMouseDownRight(MouseEventArgs e)

at Telerik.WinControls.UI.BaseGridBehavior.OnMouseDown(MouseEventArgs e)

at Telerik.WinControls.UI.RadGridView.OnMouseDown(MouseEventArgs e)

at System.Windows.Forms.Control.WmMouseDown(Message& m, MouseButtons button, Int32 clicks)

at System.Windows.Forms.Control.WndProc(Message& m)

at System.Windows.Forms.ScrollableControl.WndProc(Message& m)

at Telerik.WinControls.RadControl.WndProc(Message& m)

at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)

at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)

at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

GridView

answered on 24 Jul 2009

2 answers

358 views

RadButton ButtonElement and Screen Tip

Hi,

I was wondering why the ButtonElement of the RadButton is not available through the designer. I see that rootElement is, but if I add a screen tip to that, then the screen tip doesn't show, which is quite confusing.

I've had to add a shared method to our controls project to allow us to add screen tips to buttons like so..

    
                Public Shared Sub AddScreenTip(ByVal button As RadButton, ByVal headerText As String, ByVal bodyText As String)  
        
                    If Not button.ButtonElement.ScreenTip Is Nothing Then 
        
                        button.ButtonElement.ScreenTip.Items.Clear()  
        
                    End If 
        
                    Dim Tip As New RadOffice2007ScreenTipElement()  
        
                    Tip.CaptionLabel.Text = headerText  
        
                    Tip.MainTextLabel.Text = bodyText  
        
                    button.ButtonElement.ScreenTip = Tip  
        
                End Sub

It seems strange to have to add screen tips this way. Could a Screen Tip interface be added to the RadButton at it's root level please?
Thanks

Richard

Buttons, RadioButton, CheckBox, etc

answered on 24 Jul 2009

2 answers

173 views

dont allow spaces

I hope this is simple, how can I edit a cell to not allow spaces. The cell is required, and if I hit the spacebar and then enter it accepts it. This is what I have to edit it right now:

private void StateRadGridView1_CellValidating(object sender, CellValidatingEventArgs e)

{

GridViewDataColumn column = e.Column as GridViewDataColumn;

if (e.Row is GridViewDataRowInfo && column != null && column.FieldName == "MntStaName")

{

if (string.IsNullOrEmpty((string)e.Value))

{

MessageBox.Show("Description cannot be blank.", "JMS Error Message", MessageBoxButtons.OK, MessageBoxIcon.Stop);

}

GridView

answered on 24 Jul 2009

1 answer

266 views

Dynamically load theme assembly

Hi,

is it possible to dynamically load a default theme assembly at runtime an set the theme as application theme. The user should be able to choose between all available themes. Now I have an object for all themes on main form and a reference to each theme. But in order to save loading time I want to load the assembly of the configured theme at application start. I did not found any documentation or sample how to do this.

Regards,

Markus

Themes and Visual Style Builder

answered on 24 Jul 2009

1 answer

96 views

Version 2009.1.9.414 of telerik

I am working with the version 2009.1.9.414 of telerik radcontrols so
is there any way to download this version (to see samples) ?
When i check older versions i don't find this version.
What do you think?

Treeview

answered on 24 Jul 2009

1 answer

120 views

Solution project upgrade utility

I have split my forms and my controls in several subprojects of my solution project.

It would be great if you could extend the project upgrade utility so that it can handle solution files and upgrade all projects in the solution project at once.

Regards,

Ramius

New Product Suggestions

answered on 24 Jul 2009

1 answer

127 views

Backcolor change

Hello,

I've got a GridView in my application, when the users clicks a cell, the backcolor of the first cell of the row changes. That's working fine. But when I scroll in my View, the backcolor of the cell is not moving. The second row gets the backcolor of the firstrow and so on.

What can the resolve this?

Thx in advance.

Regards,
Stefaan

GridView

answered on 24 Jul 2009

1 answer

235 views

[Solved] RadButtonElement highlighted?

First off, I am using the Q2 2009 RadControls for Winforms in VS 2008 SP1. I have a panel bar filled with RadButtonElements under each RadPanelBarGroupElement. Upon clicking on one of the RadButtonElements, the panel on the right of the panelbar gets filled with the appropriate data. My problem however is that the client I am working for would like to keep the RadButtonElement that they clicked on highlighted, just like it is when you hover your mouse over it until another RadButtonElement is selected. Can this be done?

Panelbar (obsolete as of Q2 2010)

answered on 24 Jul 2009

2 answers

116 views

SCSF winform takes time to load

Hi,

I have developed a smart client desktop application using SCSF.

It has an MDI and MDI child forms opens over it(It is similar to windows menu based application using MDI) .

The problem is that the MDI child forms (i.e. the views) take a few seconds to open and load.

Is there any way of minimising the time it takes.

The forms are having simple telerik text boxes and telerik labels and telerik grids(which has two columns and is not populated during load)

I call a webservice at form load and have tried to comment the service call; Even then it takes the same time so I have ruled out the possibility of service delay.

Nothing else is done at the form load except the form is rendered

Is it because I am using telerik that the form is taking time to render the telerik controls.

I dont have knowledge of SCSF internals, and how SCSF does all the handling of smart parts etc.
May be it might be tuned up to load the views faster or there is some way to make the CAB work faster which I am unaware of.

Thanks in advance.

Sakshi

General Discussions

answered on 24 Jul 2009