Questions on UI for WinForms Forum

2 answers

188 views

RadDock DragDrop: How do I determine the dragged item.

Hi

I have a RadDock control (named dockManager) that I am listening to the drag/drop service on, using the following code in the form's constructor:

    
                        DragDropService dragDrop = dockManager.GetService<DragDropService>();  
        
                        dragDrop.DragDropMode = DragDropMode.Preview;  
        
                        dragDrop.PreviewDockPosition += new DragDropDockPositionEventHandler(dragDrop_PreviewDockPosition);  
        
                        dragDrop.Starting += new StateServiceStartingEventHandler(dragDrop_Starting);  
        
                        dragDrop.AllowedStates = AllowedDockState.All & ~AllowedDockState.TabbedDocument;

I need to determine whether I am dragging a ToolWindow, a DockTabStrip and also determine the type of toolwindow/DockTabStrip
At the risk of asking a stupid question, how do I determine what object I am dragging in dragDrop_Starting event handler and/or dragDrop_PreviewDockPosition?

Thanks in advance

Alan

Dock

answered on 18 Nov 2009

1 answer

111 views

Can't bring back docked windows

Hi there,

Not sure if this is DEU syndrome or not, but I seem to have closed the windows in the StyleBuilder, and can't for the life of me figure out how to get them back. This only seems to be the case from an instance that runs after being initiated from VS. If I run from the start menu, the proper windows are displayed. I tried to rename the cfg file from ProgramData, but it didn't seem to make a difference.

Thanks.

Ashley

Themes and Visual Style Builder

answered on 18 Nov 2009

1 answer

161 views

Implementing Scheduler with ADO.net

I'm developing a project where i have to use the ADO.net architecture. I'm trying to understand the whole SchedulerDataDataSet, but i'm kinda stuck. If there any way to change everything and do it with a Business Entities Component and a Data Acces Layer Component.

Scheduler and Reminder

answered on 18 Nov 2009

1 answer

203 views

RadMarkupDialog assembly?

I'm trying to get the RadMarkupDialog working at runtime (using the code from http://www.telerik.com/help/winforms/radmarkupdialog.html). I have references to Telerik.WinControls, Telerik.WinControls.UI, Telerik.WinControls.UI.Design, TelerikCommon, and TelerikData (all 2009.3.9.1103) and can't find the RadMarkupDialog class in any of them. Did the runtime version not make it in to Q3 or am I missing something?

General Discussions

answered on 18 Nov 2009

1 answer

144 views

BeginEdit for added row fails on first insert

What I am trying to do is add a new row to a grid and then automatically set it to edit mode. What i'm finding is this fails on the first row that is inserted, but for every other row it works fine. I have tried setting current row/column a few different ways and found the same behaviour. Have set up a basic example of it below.

    
                    private void Form1_Load(object sender, EventArgs e) 
        
                    { 
        
                        radGridView1.MasterGridViewTemplate.AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.Fill; 
        
                        radGridView1.ShowGroupPanel = false; 
        
                        radGridView1.MasterGridViewTemplate.EnableGrouping = false; 
        
                        radGridView1.MasterGridViewTemplate.AllowAddNewRow = false; 
        
                        GridViewComboBoxColumn col1 = new GridViewComboBoxColumn("Test1", "Test1"); 
        
                        col1.DropDownStyle = RadDropDownStyle.DropDownList; 
        
                        col1.FieldName = "Test1"; 
        
                        col1.DisplayMember = "Test1"; 
        
                        col1.DataType = typeof (int); 
        
                        col1.DataSource = new[] {1, 2, 3}; 
        
                        col1.AutoCompleteMode = AutoCompleteMode.SuggestAppend; 
        
                        radGridView1.Columns.Add(col1); 
        
                    } 
        
                    private void button1_Click(object sender, EventArgs e) 
        
                    { 
        
                        int rowCount = radGridView1.Rows.Count; 
        
                        object[] values = {1}; 
        
                        radGridView1.Rows.Add(values); 
        
                        radGridView1.MasterGridViewInfo.CurrentRow = radGridView1.Rows[rowCount]; 
        
                        radGridView1.Rows[rowCount].Cells["Test1"].BeginEdit(); 
        
                    }

What happens is the first row will get inserted without being in edit mode. if you click the button every other row works correctly.

Is there anything that i'm doing wrong in this case?

Version i'm using is: Q2 2009 SP1.

Have attached an image of the result. http://bayimg.com/image/maefbaaco.jpg

GridView

answered on 18 Nov 2009

1 answer

282 views

Default Cell Value on edit

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

213 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

159 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

514 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

248 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