Questions on UI for WinForms Forum

1 answer

179 views

Using the code bellow which add a radio button to a RadToggleButton. Whenever i click the button and not the radio button. The radio button automatically toggles on as well. But if you change RadToggleButton to a RadButton then it works. It also hapens with RadCheckBoxElement as well.

            RadToggleButton button = new RadToggleButton();
            button.Text = "Test";

            RadRadioButtonElement e = new RadRadioButtonElement();
            e.ToggleStateChanged += e_ToggleStateChanged;
            e.CheckStateChanged += e_CheckStateChanged;
            e.Margin = new System.Windows.Forms.Padding(button.Width-18, 0, 0, 0);
            button.ButtonElement.Children.Add(e);
            button.ToggleStateChanged += button_ToggleStateChanged;
            Controls.Add(button);

Buttons, RadioButton, CheckBox, etc

answered on 11 May 2015

1 answer

249 views

[Solved] Display Issue with Message Box in TelerikMetro theme

When I use one of the TelerikMetro themes (the default green one of the blue one) and show a Yes/No message box, the close button is not drawn correctly. Because it's a yes/no message, the close button is disabled and is drawn with a gray background. But the gray background ends up going outside of the button and looks really weird. I can reproduce this in the demos included in the Q1 2015 SP1 release. See the attached screenshots for an example.

MessageBox

answered on 11 May 2015

2 answers

140 views

ComboBoxColumn conundrum

Hi, I have
an ID hidden column in my grid and a separate comboboxcolumn linked to the ID
in order to display a text linked to this ID property. This works as expected, the
user being able to indirectly change the ID by selecting the appropriate entry
in the combobox column,

…but

My scenario
is that after this ID is selected by the user and saved to the database then it
should not be allowed t be edited going forward. For example when loading past
data the combobox column property should be read only in order to prevent the
user from changing this value.

The problem
is that if I set the comboboxcolumn property to read only I cannot select a
value when I try to insert a new row, the combobox column is locked and
displays no value at all.

Can you
please suggest a way to implement this need?

Regards,

George

GridView

answered on 08 May 2015

1 answer

241 views

Column position changed event is not longer existing?!?

What is the event for "column posion changed"?

Up to now I used ColumnIndexChanged in oder version of telerik or CollectionChanged event in newer telerik verion. But this event is no longer existing ?!?

GridView

answered on 08 May 2015

1 answer

216 views

RadDesktopAlert did not release memory when close

Hello

I may coded it incorrect way. When I clicked the (X) button to close, it does not release memory. I can see through Windows Task Manager.

RadDesktopAlert alert = new RadDesktopAlert();

alert.FixedSize = new Size(330, 110);

alert.PopupAnimation = true;

alert.PopupAnimationFrames = 50; // 50 is default

alert.ShowOptionsButton = false;

alert.CaptionText = "NEW POPUP";

alert.ContentText = "WELCOME";

alert.AutoClose = Properties.Settings.Default.allowAutoClose;

alert.AutoCloseDelay = Properties.Settings.Default.delayAutoCloseInSec; ;

alert.Popup.Click += new EventHandler(Popup_Click);

alert.Show();

Can someone please help me how to release/dispose RadDesktopAlert's memory properly?

Thank you!

DesktopAlert

answered on 07 May 2015

1 answer

138 views

RadDragAndDropManager is that missing.

I was looking for example on how to disable auto scrolling when trying to do drag and drop. I find that you can do so with RadDragAndDropManager, so i start looking for it in winform version and i was not able to find that class at all. Is there a way to disable automatically scrolling of a RadListView when dragging from the listview to something else.

ListView

answered on 07 May 2015

8 answers

200 views

Telerik RadScheduler bind to a database.

I am new to using visual studio.

How can I bind RadScheduler to a local database already created?

Regards.

Calendar, DateTimePicker, TimePicker and Clock

answered on 07 May 2015

15 answers

1.0K+ views

[Solved] Item Height Issue

Hi Telerik team.
I am using Telerik's RadListView in ListView mode. (latest library)
I am implementing some log window and visually It looks like some chat window, each new log entry is new ListViewDataItem and the window itself is a RadListView.
I do ask it to wrap text in visual item formatting event handler by :
private void OnTextAreaVisualItemFormatting(object sender, ListViewVisualItemEventArgs e)
{
e.VisualItem.TextWrap = true;
}
And I also allow arbitrary item height, since I should be able to display in each list item text of any length.
There is something I have to take care about and I can't figure out how to do it. ListView leaves too much space around text in every visual item. I mean it wraps text fine, but leaves spare 15 pixels on top and at the bottom of each visual item.
I tried to add line
e.VisualItem.Padding = new Padding(0);
to formatting even handler, but it didn't helped.
Do I have any control on VisualItem size, padding while text wrap is enabled? Am I clear?
Regards, Artem

ListView

answered on 06 May 2015

1 answer

261 views

Drag-Drop from RadTreeView to custom control

Hi,

I have a RadTreeView with some items inside and want to drag and drop items to a custom control derived from RadControl (which is inside a DocumentWindow in a RadDock).

I tried to attach TreeViewElement.DragDropService.PreviewDragOver event but it does not fire for my custom control. (Have set AllowDrop to true and tried to implement ISupportDrop interface but no luck)

Any help would be appreciated.

Treeview

answered on 06 May 2015

2 answers

356 views

[Solved] Error - Property value is not valid

Hi,

we got a pretty infuriating problem with Telerik for WinForms. We don't know why but the project started to producing errors when renaming RadControls: "Property value is not valid." (see attached screenshot). The renaming is still done, but the code for the old name is still left behind in the designer. So if I add a checkbox, it gets the name "radCheckBox1" and rename it to "radCheckBoxUser", the error will pop up and code for both will stay in the designer code. Also, if I create an event via the property window in VS for radCheckBoxUser, it will still reference the old checkbox and create a "radCheckBox1_ToggleStateChanged" event. So almost every time we add or change a control, we have to clean up designer code and code behind, which is too time consuming.

Can anybody give us a clue as to why this behavior occurs and help us to solve this problem? It would be really appreciated.

Thanks and regards,

Steve.

General Discussions

answered on 06 May 2015