Questions on UI for WinForms Forum

6 answers

191 views

[Solved] Show TabStripItem CloseButton on mouse Hover

I would like to show the close button of the TabStripItem only when the user moves the mouse over the tab strip item.
I have set the ShowToolCloseButton property of the RadDock object to true.
When I dock my control, I set the visibility of the CloseButton to Hidden and I attach the MouseHover and MouseLeave events.

MyTab tab = new MyTab();

var win = this.dock.DockControl(tab, DockPosition.Fill, DockType.Document);

win.TabStripItem.CloseButton.Visibility = ElementVisibility.Hidden;

win.TabStripItem.MouseHover += new EventHandler(TabStripItem_MouseHover);

win.TabStripItem.MouseLeave += new EventHandler(TabStripItem_MouseLeave);

On MouseHover I set the button visibility to Visible, On MouseLeave I set the button visibility to Hidden

void TabStripItem_MouseLeave(object sender, EventArgs e)

{

var tabStripItem = (TabStripItem)sender;

tabStripItem.CloseButton.Visibility = ElementVisibility.Hidden;

}

void TabStripItem_MouseHover(object sender, EventArgs e)

{

var tabStripItem = (TabStripItem)sender;

tabStripItem.CloseButton.Visibility = ElementVisibility.Visible;

}

My problem is that the close button "flickers" when I mouve the mouse over the TabStripItem. What am I doing wrong? Is it possible to achieve this behavior?

Thanks,
Silvano

Dock

answered on 08 Nov 2013

1 answer

74 views

Selecting only cells of one row

Hi,

I have a GridView with

grid.MultiSelect = true;

grid.SelectionMode = GridViewSelectionMode.CellSelect;

How can I achieve a behavior where the user can only multiselect cells of one row? I tried to use the gridFehlzeitenuebersicht_SelectionChanging Event without success. I think I just need a nice hint in the right direction. Thank you in Advance.

I'm using C# and RadControls for WinForms V. 2013.3.1016.40.

Best,

Peter

GridView

answered on 08 Nov 2013

5 answers

240 views

Autocomplete and images

Hello,

I've used the RadDropDownList with style "DropDown". So I can use the autocomplete behavior. So far so good.
Each progammatically added item has an image (48x48). Wenn I opens the dropdown the items will be displayed with image.
But when I enter some text the matched items in the dropdown will be not displayed with image. Why?

Also the selected item will be not displayed with image. Only when I change the dropdown style to "DropDownList" the image will be displayed also. But then there is no possibility to use autocomplete behavior. That's bad.

As workaround I change the dropdown style on the fly. When clicking the control I change the style like:

private void CountrySelector_MouseClick(object

sender, MouseEventArgs e)

{
this

.CountrySelector.DropDownStyle = Telerik.WinControls.RadDropDownStyle.DropDown;

this.CountrySelector.DropDownListElement.ShowImageInEditorArea = false

}

Now I can use the autocomplete behavior.

And in SelectedIndex_Changed event method I change the style to "DropDownList" like:

private void CountrySelector_SelectedIndexChanged(object sender, Telerik.WinControls.UI.Data.PositionChangedEventArgs e)

{

this.CountrySelector.DropDownListElement.ShowImageInEditorArea = true;

this.CountrySelector.DropDownStyle = Telerik.WinControls.RadDropDownStyle.DropDownList;

}

Then the selected item image will be displayed.

Cool. But I need to display the image of matched items in dropdown when entering text using the autocomplete behavior.
How to?

Regards,
Ralf

DropDownList

answered on 08 Nov 2013

1 answer

559 views

RadDropDownList SelectedValue not setting

Hi, I'm having some issues with setting SelectedValue on a dropdownlist.

In my application I have a site selection dropdownlist which helps distinguish different transaction sets.
When edits are currently being made in any of the screens and the user tries to change the site using the dropdownlist, it asks whether or not the user wants to continue (checkDirtyLabour() below). If the user chooses to NOT continue with the site change (stay on same form) I want to ensure the dropdownlist doesn't change as well - or in fact, in this case, reverts back to the original value.

As such I try to set rddlSite.SelectedValue = Globals.CurrentSite (shared public variable). I have also tried this with the currentGlobalSite. Neither of these things are working presently, when stepping over these lines the assignation doesn't cause any errors yet also doesn't assign the value. ValueMember for rddlSite = "LookupID" of the LookUpRow record. For instance, the default Globals.CurrentSite value is 7, and changing it to 9 via selection, then cancelling the change when prompted does not return the SelectedValue to 7.

If someone could help me figure out what's going on, I'd love some help.

The following snippet is in rddlSite_SelectedValueChanged

Dim lu As LookupRow = DirectCast(rddlSite.SelectedItem.DataBoundItem, LookupRow)

If lu.LookupID <> Globals.CurrentSite Then

Dim currentGlobalSite As Integer = Globals.CurrentSite

If Globals.CurrentSite > 0 AndAlso checkDirtyLabour() Then 'if dirty and selected to not change, but not when Globals.CurrentSite not set

rddlSite.SelectedValue = Globals.CurrentSite

lh.rddlSite.SelectedValue = Globals.CurrentSite

Return

End If

lh.rddlSite.Text = ""

Globals.CurrentSite = lu.LookupID

lh.rddlSite.SelectedText = lu.FieldID

If Globals.CurrentSite > 0 Then refreshLabourOnSiteChange()

End If

Thanks,
Vijay

DropDownList

answered on 07 Nov 2013

3 answers

169 views

GanttView Graphic display incorrect time

Hello Support,
I load your demo on blog http://blogs.telerik.com/careypayette/posts/13-08-30/take-full-control-of-your-projects-with-radganttview-for-winforms, But I see that the time displayed on Graphic view incorrectly. Is it?
I also try some data of your link http://www.telerik.com/help/winforms/ganttview-working-with-data-data-binding-basics.html, I still get the error.
Please see attachment for more information.
Thanks in advance.

GanttView

answered on 06 Nov 2013

0 answers

100 views

Cell click of column number 2

I have a problem when click in any cell of a row the event launh .
I need to know how to get the event of a cell click of column number 2 for example in Gridview

User must click in a cell of a column name or column number in any row

please help

GridView

asked on 06 Nov 2013

1 answer

228 views

DescriptionTextMember and Autosize

I have tried setting AutoSizeItems and/or AutoSize to true on every element within the Dropdownlist, but I can not get the listbox to draw correctly when using the DescriptionTextMember. See screenshot. Any advice? What am I missing?

DropDownList

answered on 05 Nov 2013

4 answers

1.9K+ views

[Solved] Enable/Disable a cell in gridview

Hi,

is it possible to enable or disable a specific cell in Gridview. i am using Winforms Q1 2010 SP1 version.

Regards,

Nitin

GridView

answered on 05 Nov 2013

1 answer

166 views

SelectedNodes.Clear Not working when MultiSelect = false

Hi,

Treeview.SelectedNodes.Clear Not working when MultiSelect = false

Don't know if this is by design or a bug but in my opinion, when you invoke Treeview.SelectedNodes.Clear whatever is selected should no longer be selected, regardless of the MultiSelect setting.

In addition, if MultiSelect = false and you invoke Nodes.Clear(), SelectedNodes still contains an object. SelectedNodes shoud clear as well.

-Kim

Treeview

answered on 05 Nov 2013

1 answer

184 views

Event for saving an EXISTING appointment

On the save of the appointment I need to differentiate between the save of new appointment vs. an existing appointment.

I am aware that the save of a new appointment triggers the following event:

this.radSchedulerControl.AppointmentAdded += new EventHandler<AppointmentAddedEventArgs>(radSchedulerControl_AppointmentAdded);

And the save of the existing event triggers the following event with the action of the event = "ItemChanged"

this.radSchedulerControl.Appointments.CollectionChanged += new Telerik.WinControls.Data.NotifyCollectionChangedEventHandler(Appointments_CollectionChanged);
....however the problem with this event is that it get triggered multiple times based on what was changed for on the existing appointment.

A different thread suggested using the ApplySettingsToEvent function in the CustomAppointmentEditDialog class when saving an appointment to add my custom logic. However, in ApplySettingsToEvent I could not determine how to differentiate when a new Appointment is created vs an existing one is saved since this function gets executed on both the creation of a new appointment and the save of an existing.

Your help in determining how to execute custom logic only on the save of an existing appointment and have it triggered only once would be appreciated.

Thanks!
Vijay

Scheduler and Reminder

answered on 04 Nov 2013