Questions on UI for WinForms Forum

36 answers

737 views

We are binding our grids to a BindingList<T> where T is a business object that implements IDataErrorInfo.

How do we "hook up" data validation in the GridView in this case?

When we had it bound to the Microsoft DataGridView we did not have to do anything. The error icons automatically appeared in the cell using the text defined using the IDataErrorInfo properties. But this does not appear to work with the GridView?

I read through what I could find on validation in the documentation and it appeared to require writing code in the Validating events. Is this still required when the binding source uses IDataErrorInfo?

Thanks!

GridView

answered on 21 Dec 2010

2 answers

512 views

Is there a way to set readonly to checkboxes within the treeview

Hi,

Is there a way to set readonly to checkboxes within the treeview?

There is an Enabled property that will give me a similar effect I want however it does also disable the scrollbar access, which the screen view cannot be scroll to up or down.

Can you help? Many thanks in advance.

Treeview

answered on 21 Dec 2010

5 answers

190 views

Group by date (outlook style)

Is it possible to group by date similiar to outlook?$0$0$0$0Like:$0$0$0$0$0Today$0$0Yesterday$0$0Sunday$0$0Saturday$0$0...$0$0Last Week$0$0This Month$0$0Last Month$0$0Older$0

GridView

answered on 20 Dec 2010

1 answer

145 views

Sizing GridViewMultiComboBoxColumn in gridview

I have added a GridViewMultiComboBoxColumn column from code behind into a gridview. Everthng works well but the drop down is very narrow and does not display the entire contents in each row. What is the best way to size this control so that all values are displayed in its entirety. Some of the things I have tried did not work.

cboCategory.FieldName =

"Category"

'cboCategory.HeaderText = "Category"

cboCategory.DataSource = objDT

cboCategory.ValueMember =

"Category"

cboCategory.DisplayMember =

"Category"

'cboCategory.Width = 0.2 * Me.RadQueuedFiles.Width

cboCategory.AutoSizeMode = BestFitColumnMode.DisplayedDataCells

'cboCategory.BestFit()

GridView

answered on 20 Dec 2010

3 answers

76 views

Timezone / Ruler VB2010 Code Behind

Put this in the startup code (After the fill.database:

InitializeTimeZones()

Here is The VB coding.

Private Sub InitalizeTimeZones()

ddTimeZones.SortStyle = Telerik.WinControls.Enumerations.SortStyle.Ascending

ddTimeZones.DataSource = Time.GetSchedulerTimeZones

ddTimeZones.DisplayMember = "List"

End Sub

Private Sub RadButton1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadButton1.Click

RadScheduler1.ActiveView.DefaultTimeZone = DirectCast(ddTimeZones.SelectedValue, SchedulerTimeZone)

End Sub

Private Sub RadButton2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadButton2.Click

Dim view As SchedulerDayViewBase = TryCast(RadScheduler1.ActiveView, SchedulerDayViewBase)

If view IsNot Nothing Then

view.TimeZones.Add(DirectCast(ddTimeZones.SelectedValue, SchedulerTimeZone))

End If

End Sub

Scheduler and Reminder

answered on 20 Dec 2010

3 answers

151 views

Problem with group descriptor

I have created an unbound grid as follows

RadQueuedFiles.Columns.Add(New GridViewTextBoxColumn("GUID"))

RadQueuedFiles.Columns.Add(New GridViewTextBoxColumn("P_ID"))

RadQueuedFiles.Columns.Add(New GridViewTextBoxColumn("T_ID"))

RadQueuedFiles.Columns.Add(New GridViewTextBoxColumn("Project_Name"))

RadQueuedFiles.Columns.Add(New GridViewTextBoxColumn("T Information"))

RadQueuedFiles.Columns.Add(New GridViewTextBoxColumn("File_Path"))

RadQueuedFiles.Columns.Add(New GridViewTextBoxColumn("File Name"))

RadQueuedFiles.MasterTemplate.AllowAddNewRow = False

RadQueuedFiles.AutoSizeRows = True

RadQueuedFiles.Columns(0).IsVisible = False

RadQueuedFiles.Columns(1).IsVisible = False

RadQueuedFiles.Columns(2).IsVisible = False

RadQueuedFiles.Columns(3).Width = 0.15 * Me.RadQueuedFiles.Width

RadQueuedFiles.Columns(4).DisableHTMLRendering = False

RadQueuedFiles.Columns(4).Width = 0.55 * Me.RadQueuedFiles.Width

RadQueuedFiles.Columns(5).IsVisible = False

RadQueuedFiles.Columns(6).Width = 0.35 * Me.RadQueuedFiles.Width

RadQueuedFiles.AllowEditRow = False

RadQueuedFiles.AllowAddNewRow = False

Dim descriptor As New GroupDescriptor()

descriptor.GroupNames.Add("Project_Name", System.ComponentModel.ListSortDirection.Ascending)

Me.RadQueuedFiles.GroupDescriptors.Add(descriptor)

When I run the program and add rows programatically, it groups by value in GUID column and not the project name... sample add is below

RadQueuedFiles.Rows.Add(Guid.NewGuid, cboProjectName.SelectedValue, RadT.CurrentRow.Cells(0).Value, cboProjectName.Text, strProjectIdentifier, file, file.Split(

"\")(file.Split("\").Count - 1))

What am I missing?

GridView

answered on 20 Dec 2010

4 answers

293 views

Any way to show "Please Select" in databound dropdownlist

I have a WinForms dropdown list in DropDownList Sytle that is bound to a datatable. I've read several articles in the forums, but found nothing to either let me set the selection to blank after binding, or insert a "Please Select" selection either before or after binding.

I've tried setting the text property and the Null Text property and these don't work either.

Any suggestions?

DropDownList

answered on 20 Dec 2010

1 answer

128 views

Shaped Form problem

I have a shaped form that looks normal in the designer, but when actually showing the form in the application its just a gray square. The controls are missing on it as well...

Can't seem to attached files right now, so no screen shots.

ShapedForm

answered on 20 Dec 2010

4 answers

90 views

Binding with business objects - Getting Changes

Hi,

I have succeeded in creating my own custom appointments, binded with a list of business object. Now, I would like to make a button on top of the screen to allow the user to save all his changes once he finishes assigning and arranging all of his appointments.

Is there a method similar to the GetChanges of the normal windows data binding? I am using the SchedulerBindingDataSource to bind the Scheduler with my list.

Thanks in advance for your help.

Regards.
John

Scheduler and Reminder

answered on 20 Dec 2010

4 answers

124 views

UI Control

Hello everyone. I'm just starting my first Telerik Windows Application. I needed a bit of advice regarding UI controls. My form will be re-sizable. I need to control the UI control placements using some layout engines. Kindly guide me if telerik has some layout provided or thngs to keep in mind microsoft's own layout controls. Thank you.

General Discussions

answered on 20 Dec 2010