Questions on UI for WinForms Forum

1 answer

274 views

how to set values to text items in DropDownList control

Hi;

i use DropDownList control, i added many items and set "Text" properties for each item, but how to set a value to item, i need the selected value.

i do not see any field lets me fill the value of item,

see the attachment

DropDownList

answered on 06 Jul 2011

2 answers

130 views

Formatting Summary Row while grouped

Hi All,

i have the following code to convert a integer value (seconds) to double and i wish to oput it like 00:10:15 (615 seconds) in my summary row.

Private Sub rgvWechselProtokoll_GroupSummaryEvaluate(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.GroupSummaryEvaluationEventArgs) Handles rgvWechselProtokoll.GroupSummaryEvaluate

If e.Parent Is Me.rgvWechselProtokoll.MasterTemplate Then

Dim fulltime As String

fulltime = Date.FromOADate(CDbl(e.Value) / 86400)

e.FormatString = String.Format("Gesamtzeit = {0:T}", fulltime)

End If

End Sub

This is working while m grid is not grouped.

I want to have the same formatting when grouped. Currently my code looks like this

Me.rgvWechselProtokoll.Columns.Add("Sekunden")

Me.rgvWechselProtokoll.Columns("Sekunden").IsVisible = False

Dim summaryItem As New GridViewSummaryItem()

summaryItem.Name = "Start"

summaryItem.AggregateExpression = "Sum(Sekunden)"

summaryItem.FormatString = "Gesamt = {0}"

Dim summaryRowItem As New GridViewSummaryRowItem()

summaryRowItem.Add(summaryItem)

Me.rgvWechselProtokoll.SummaryRowsBottom.Add(summaryRowItem)

so that i will see my seconds as Integer. When i change my first block to

Private Sub rgvWechselProtokoll_GroupSummaryEvaluate(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.GroupSummaryEvaluationEventArgs) Handles rgvWechselProtokoll.GroupSummaryEvaluate

If e.Parent Is Me.rgvWechselProtokoll.MasterTemplate Or IsNumeric(e.Value) Then

Dim fulltime As String

fulltime = Date.FromOADate(CDbl(e.Value) / 86400)

e.FormatString = String.Format("Gesamtzeit = {0:T}", fulltime)

End If

End Sub

then the formatting is also added when my summery value isNumeric, but this way seems just to be a workaround.

How to apply the same formatting from my first code block using Events or AggregateExpression and FormatString the correct way

Kind regards

Martin Gartmann

GridView

answered on 06 Jul 2011

3 answers

173 views

How to sort using hours, minutes, seconds?

Hi

I have in my object couple columns of type DateTime. I use built in functionality for sorting. On the column header user can type date. My problem is that I can define only date, hours, minutes and seconds are always zero (take a look at the screenshot).

Is there any possibility to let the user define also hours?

Regards

GridView

answered on 06 Jul 2011

7 answers

187 views

RadScrollBarElement.set_Value Exception when Databinding

I'm binding to a grid and I'm getting a weird error when I try to bind a datasource:

This is the statement that causes the error:
RootBindingSource.DataSource = _model;

This is the error:

Value of '1' is not valid for 'Value'. 'Value' must be between 'Minimum' and 'Maximum'.
Parameter name: Value

at Telerik.WinControls.UI.RadScrollBarElement.set_Value(Int32 value)\r\n
at Telerik.WinControls.UI.GridTableElement.EnsureRowVisible(GridViewRowInfo rowInfo)\r\n
at Telerik.WinControls.UI.GridTableElement.UpdateCurrentPosition()\r\n
at Telerik.WinControls.UI.GridViewInfo.SetCurrentRow(GridViewRowInfo row, Boolean setPosition, Boolean shift, Boolean control)\r\n
at Telerik.WinControls.UI.GridViewTemplate.SetCurrentRow(GridViewRowInfo rowInfo)\r\n
at Telerik.WinControls.Data.DataAccessComponent.InitDataGrid()\r\n
at Telerik.WinControls.Data.DataAccessComponent.currencyManager_ListChanged(Object sender, ListChangedEventArgs e)\r\n
at System.Windows.Forms.CurrencyManager.OnListChanged(ListChangedEventArgs e)\r\n
at System.Windows.Forms.CurrencyManager.List_ListChanged(Object sender, ListChangedEventArgs e)\r\n
at System.Windows.Forms.BindingSource.OnListChanged(ListChangedEventArgs e)\r\n
at System.Windows.Forms.BindingSource.SetList(IList list, Boolean metaDataChanged, Boolean applySortAndFilter)\r\n
at System.Windows.Forms.BindingSource.ResetList()\r\n
at System.Windows.Forms.BindingSource.ParentCurrencyManager_MetaDataChanged(Object sender, EventArgs e)\r\n
at System.EventHandler.Invoke(Object sender, EventArgs e)\r\n
at System.Windows.Forms.CurrencyManager.OnMetaDataChanged(EventArgs e)\r\n
at System.Windows.Forms.CurrencyManager.List_ListChanged(Object sender, ListChangedEventArgs e)\r\n
at System.Windows.Forms.BindingSource.OnListChanged(ListChangedEventArgs e)\r\n
at System.Windows.Forms.BindingSource.SetList(IList list, Boolean metaDataChanged, Boolean applySortAndFilter)\r\n
at System.Windows.Forms.BindingSource.ResetList()\r\n   at System.Windows.Forms.BindingSource.set_DataSource(Object value)\r\n

I can't figure out what is wrong based on the error description.

GridView

answered on 06 Jul 2011

6 answers

886 views

Annoying RibbonBar Size Issue

Hello,

In my WinForms app, I am using a RibbonBar along with a custom resizing function. Since I use a custom resizing solution, I have noticed a bug/issue with my RibbonBar. The default RibbonBar height is 141, and I can seem to change that :S. During runtime, I add a control to the RadRibbonBarChunk. This control is of a certain size so that is causes the RibbonBar to grow in height. Since I can't seem to edit the height of the RibbonBar at design time to make everything work, I have to find some way to adjust the location/size of the control below the RibbonBar that's getting affected, or find a way to force the RibbonBar's height to be greater than 141 at design time.

Any help you can give me with this problem would be wonderful!

--UIDev

RibbonBar

answered on 06 Jul 2011

2 answers

237 views

DockWindowClosing event issue

Hi All,

Based on this forum thread I tried to obtain the affected child window of the DockWindowClosing event :

private void raddock_DockWindowClosing(object sender, Telerik.WinControls.UI.Docking.DockWindowCancelEventArgs e)

{

//closing windows

System.Windows.Forms.Form WindowClosing;

//dockwindow

if (e.DockWindow is Telerik.WinControls.UI.Docking.HostWindow)

//can convert

if (((Telerik.WinControls.UI.Docking.HostWindow)e.DockWindow).Content is System.Windows.Forms.Form)

//save the closing window

WindowClosing = (System.Windows.Forms.Form)((Telerik.WinControls.UI.Docking.HostWindow)e.DockWindow).Content;

But, the ((Telerik.WinControls.UI.Docking.HostWindow)e.DockWindow).Content is always null.

Is there any problem in my code, or it is a bad feature?

Best regards,

Peter

Dock

answered on 05 Jul 2011

2 answers

127 views

Refreshing Appointments in View

I need to be able to refresh the appointments in my scheduler periodically or on demand. I am Data Binding to a collection in a repository class which has an Appointments property. When I make changes to the Appointments collection in the custom repository class, how can I force the scheduler to pick up this new data and re-draw?

Scheduler and Reminder

answered on 05 Jul 2011

3 answers

174 views

GridViewComboBoxColumn

Hi,

In my GridViewComboboxColumn, the display member is string and value is integer. User can do filtering. But the operations shown on this column in the filtering row are for integer instead for string (please see attachment). Can you please tell me how can I solve this?

The second problem is when I copy(either by context menu or ctrl + c) the combobox value, integer value is copying. I want to copy the text value. What is the best way to do? Can I get the display member? My copy/paste code is working fine with other columns. I only have problem with combobox columns.

Thanks

Regards

Zerka

GridView

answered on 05 Jul 2011

1 answer

269 views

RadForm event for Double Clicking the title bar

I can't seem to find the event that is fired when the Title Bar of a RadForm is double clicked.
My form is maximized at all times and I don't want the user to change the size of the windown by double clicking the title bar. Form should always stay at maximized state and this (this.WindowState = System.Windows.Forms.FormWindowState.Maximized) is not preventing the resize on Title Bar double click.

MaximizeBox property is set to False to prevent the user from clicking the form's maximize button. This part is working fine.

TitleBar