Questions on UI for WinForms Forum

16 answers

426 views

How to drag&drop between GridViews in bound mode?

Version:Q2 2010 SP2
The demo 'Rows Drag&Drop' works in un-bound mode but not in database bound mode.How to get it working?

GridView

answered on 13 Nov 2010

4 answers

174 views

Getting sender's column index

Hi,

I need to know the name of the sender's column in a GridView. The below code in WinForms Q2 2010 SP2 doesn't work. The code is:

Private Sub Grid_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Grid.ValueChanged

Dim dce As GridDataCellElement

dce = CType(sender, GridDataCellElement)

If dce.ColumnInfo.Name = "Devol" Then

If Grid.CurrentRow.Cells("Devol").Value Then

Grid.CurrentRow.Cells("DaysDefDev").ReadOnly = False

Else

Grid.CurrentRow.Cells("DaysDefDev").ReadOnly = True

Grid.CurrentRow.Cells("DaysDefDev").Value = 0

End If

End Sub

In the previous code the column named "Devol" is GridviewCheckBoxColumn and "DaysDefDev" is a numeric column. When I check or uncheck "Devol" column an exception occurs with the message like "Can't cast from 'Telerik.WinControls.UI.RadCheckBoxEditor' to 'Telerik.WinControls.UI.GridDataCellElement'."

If I type TryCast insted of CType the object is always nothing and another exception is thrown.

Any help would be great.

Thanks.

GridView

answered on 12 Nov 2010

3 answers

114 views

VB.Net Custom Control Iinheriting RadGridView

I have created a custom control in VB.net which inherits a RadGridView. When I drop it on the form, it looks nothing like the base control. Does anyone know why this is and how I can make it look like the base control? I have attached an image of the base control and the custom control. The base control is on teh top and you can see the difference.

Thanks

GridView

answered on 12 Nov 2010

5 answers

165 views

How can I stop users amending SOME appointments

Hi,

I am using the scheduler in TimeLineView and create my appointments programmatically. I want the users to be able to amend the dates and duration of some of the appointments, but not others.

I have set the appointment.AllowEdit to false, but this doesn’t seem to work, as the user can still amend the appointment.

Any thoughts or suggestions

Karl

Scheduler and Reminder

answered on 12 Nov 2010

12 answers

233 views

Change UI of radDatetimePicker

hello,

i am using RadControls 2010 Q2 , and in the radDatetimePicker i am going to change the Culture property of it to the Persian Culture.
it throws this exception :

Specified time is not supported in this calendar. It should be between 03/21/0622 00:00:00 (Gregorian date) and 12/31/9999 23:59:59 (Gregorian date), inclusive.
Parameter name: time

would you please help me to find a solution for it ?
how can i change the culture of radDatetimePacker ?

DateTimePicker

answered on 12 Nov 2010

4 answers

120 views

Resizing Edit Appointment dialog

Is there a way to control the size of the Edit Appointment dialog or at least make it resizeable by the user? I find that it's not effeciently using all the space available in the browser and would like to make it taller to be able to display more custom fields without forcing the user to scroll. Earlier versions of the control didn't have this problem.

Scheduler and Reminder

answered on 11 Nov 2010

23 answers

659 views

Drag row from one radgrid to another?

Is it possible to drag one or more rows from one radgrid to another radgrid on a form?

I saw there was a property allowdrop so i'm guessing that it is possible.

Is there some example code on how to do this?

thanks

GridView

answered on 11 Nov 2010

5 answers

106 views

Best Practice for Closing RadComboEditor on Item Selection

On the theme of cutting down on the user keystroke count for my application:

I have a RadGridView. Inside that RadGridView is a radComboColumn that contains information from a BoxCode DataTable. Value is the BoxCodeTable.ID and Display is BoxCodeTable.Description.

The BoxCode DataTable also stores length, width, and height information for a given box. When the user selects a box and the editor is closed, the length, width, and height values are loaded from the DataTable and inserted into three fields in the RadGridView's CurrentRow. The idea is that a user should be able to override these values in certain boundary conditions.

That's all working. But it is annoying to me that, when a BoxCode is selected from the ComboBoxColumn, the user must press the Enter Key (or click elsewhere on the grid) to close the editor. I want to take that keystroke out.

And I've managed to do that with a bit of a hack. However, it feels really, really awkward.

In RadGridView.CellBeginEdit event, I am calling the following code to bind an event to the RadComboBoxEditor:

                                        private void gvwManifestLines_CellBeginEdit(object sender, GridViewCellCancelEventArgs e)         
                                {         
                                    if (e.ColumnIndex == this.gvwManifestLines.Columns["saturdayDelivery"].Index)         
                                    {         
                                        // A whole bunch of code omitted.         
                                    }         
                                    else if (e.ColumnIndex == this.gvwManifestLines.Columns["PackageChooser"].Index)         
                                    {         
                                        RadComboBoxEditor comboEditor = this.gvwManifestLines.ActiveEditor as RadComboBoxEditor;         
                                        comboEditor.DropDownStyle = RadDropDownStyle.DropDownList;         
                                        comboEditor.AutoCompleteMode = AutoCompleteMode.Suggest;         
                                        comboEditor.PopupClosed += new RadPopupClosedEventHandler(comboEditor_PopupClosed);         
                                 
                                        //More code for processing - not relevant.         
                                    }         
                                }         
                                 
                                void comboEditor_PopupClosed(object sender, RadPopupClosedEventArgs args)         
                                {         
                                    RadComboBoxEditor comboEditor = sender as RadComboBoxEditor;         
                                    if (comboEditor != null)         
                                    {         
                                        comboEditor.PopupClosed -= new RadPopupClosedEventHandler(comboEditor_PopupClosed);         
                                        SendKeys.Send("\r");         
                                    }         
                                }         
                                 

As you can see, I'm closing the editor by sending the return keystroke myself. This is working. I'm a bit shy about it, however. It feels a shaky to close the editor by relying on sending keystrokes. Is there a better solution to this problem?

I tried EndEdit(), but no dice.

GridView

answered on 11 Nov 2010

6 answers

183 views

Telerik Theme & Users Themes

Hi,

I'm trying to use the telerik theme with the last winforms build.

But it don't work very well (eg. in radgrid)

Is this theme is actual ? If not do you plan to update it ?

And I renember that you have a link where we can find some users themes but i don't find it....

Regards

General Discussions

answered on 11 Nov 2010

1 answer

339 views

Scrolling using WrapLayoutPanel

Hi,

Ive created a custom control using the telerik controls, which is based on the "business card" example provided in the demo code.
That is a RadControl that allows custom RadButtomElements to be added to it. The RadButtonElements are stored in a WrapLayoutPanel. However Im having difficulty getting scrolling to work properly. Ive seen quite a few examples and threads about scrolling using the stacklayoutpanel, however I want to use the wraplayoutpanel to get better presentation, as each element is of variable size. However using the wraplayout the scrollbars do not appear correctly. At runtime it looks as though the viewport settings are calculated as if the viewport is a stacklayout not a wraplayout.

Any help will be greatly appreciated.

Hopefully looking at this code will make a bit more sense...

Version of Rad controls (WinForm) 2009.3.9.1203

RadScrollViewer

scrollViewer = new RadScrollViewer();

Telerik.WinControls.UI.RadPanel radPanel1= new Telerik.WinControls.UI.RadPanel();

this.Controls.Add(this.radPanel1);
WrapLayoutPanel wrapLayout = new WrapLayoutPanel();

wrapLayout.Orientation =

Orientation.Horizontal;

scrollViewer.Viewport = wrapLayout;

this.radPanel1.PanelElement.Children.Add(scrollViewer);

for(int i = 0 ; i < 100; i++)

{

wrapLayout.Children.Add(

new RadButtonElement() {Text = "Test" + i, Padding = new Padding(5), Margin = new Padding(2), Size = new Size(50,10)});

}

ScrollablePanel

answered on 11 Nov 2010

	private void gvwManifestLines_CellBeginEdit(object sender, GridViewCellCancelEventArgs e)
	{
	if (e.ColumnIndex == this.gvwManifestLines.Columns["saturdayDelivery"].Index)
	{
	// A whole bunch of code omitted.
	}
	else if (e.ColumnIndex == this.gvwManifestLines.Columns["PackageChooser"].Index)
	{
	RadComboBoxEditor comboEditor = this.gvwManifestLines.ActiveEditor as RadComboBoxEditor;
	comboEditor.DropDownStyle = RadDropDownStyle.DropDownList;
	comboEditor.AutoCompleteMode = AutoCompleteMode.Suggest;
	comboEditor.PopupClosed += new RadPopupClosedEventHandler(comboEditor_PopupClosed);

	//More code for processing - not relevant.
	}
	}

	void comboEditor_PopupClosed(object sender, RadPopupClosedEventArgs args)
	{
	RadComboBoxEditor comboEditor = sender as RadComboBoxEditor;
	if (comboEditor != null)
	{
	comboEditor.PopupClosed -= new RadPopupClosedEventHandler(comboEditor_PopupClosed);
	SendKeys.Send("\r");
	}
	}