Questions on UI for WinForms Forum

1 answer

415 views

GridView: Binding Multiple Selection on a CommandParameter

I need to have a context menu on a gridview whereby the user can select multiple rows on the gridview and right-clicked on it then the user can change the Status of the row via the iCommand.

<telerik:RadGridView Name="rcGridView" Grid.Row="0" Margin="15" ItemsSource="{Binding Users, NotifyOnSourceUpdated=True,

UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}" AutoGenerateColumns="False" ClipToBounds="False"

SelectionMode="Extended" VerticalAlignment="Stretch" telerik:StyleManager.Theme="Summer" RowHeight="20"

RowIndicatorVisibility="Collapsed" CanUserInsertRows="False" CanUserDeleteRows="False" HorizontalAlignment="Left"

FontSize="11" ClipboardCopyMode="All" ClipboardPasteMode="AllSelectedCells,Default" SelectionUnit="FullRow" CanUserFreezeColumns="False">

<telerik:RadContextMenu.ContextMenu>

<telerik:RadContextMenu>

<telerik:RadContextMenu.Items>

<telerik:RadMenuItem Header="Approve" Command="{Binding UpdateSourceTrigger=Default, NotifyOnSourceUpdated=True,

RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type telerik:RadContextMenu}},Path=DataContext.StatChgtoApproveCommand}"

CommandParameter="{Binding ElementName=rcGridView, Path=SelectedItems}" />

<telerik:RadMenuItem Header="Hold" Command="{Binding UpdateSourceTrigger=Default, NotifyOnSourceUpdated=True,

RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type telerik:RadContextMenu}},Path=DataContext.StatChgtoHoldCommand}"

CommandParameter="{Binding ElementName=rcGridView, Path=SelectedItems}" />

<telerik:RadMenuItem Header="Reject" Command="{Binding UpdateSourceTrigger=Default, NotifyOnSourceUpdated=True,

                    RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type telerik:RadContextMenu}},Path=DataContext.StatChgtoRejectCommand}" 
                    CommandParameter="{Binding ElementName=rcGridView, Path=SelectedItems}" />  
        </

telerik:RadContextMenu.Items>

</telerik:RadContextMenu>

</telerik:RadContextMenu.ContextMenu>

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn Header="ID" DataMemberBinding="{Binding ID}" />

<telerik:GridViewDataColumn Header="Name" DataMemberBinding="{Binding Name}"

/>

    <

telerik:GridViewDataColumn Header="Status" DataMemberBinding="{Binding Status}" />

</telerik:RadGridView.Columns

>

</

telerik:RadGridView>

Unfortunately, when the user click on the item context menu the command will trigger an iCommand and CommanParameter is null. The CommandParameter should be the multiple selected rows on the gridview. Is there a way to make this work?

GridView

answered on 18 Aug 2011

2 answers

111 views

Get typed text in gridviewcomboboxcolumn

Hi
we are using 2011 Q2 gridview for winforms. We need to know how can get typed text in a cell inside gridviewcomboboxcolumn. If I try to get text typed when cell value before is something the text i get is always previous text, and if we try to get text typed when dropdown value is nothing always get blank text not typed text.

Thanks in advance.
Jesus

GridView

answered on 18 Aug 2011

2 answers

279 views

ILMerge Problem

Hello!
I've followed ILMerge Telerik assemblies with the application executable.
Now i have merged application: MergedGeneratorXSD.exe.
When i'm trying to execute it - it cause's runtime error:

EventType: clr20r3 P1:MergedGeneratorXSD.exe P2: 1.0.0.0
P3: 4e495182 P4: mscorlib P5 2.0.0.0 P6 4889dc80 P7:f6
P8: 80 P9: systemtypeloadexception

Sorry for my bad English :)

General Discussions

answered on 17 Aug 2011

1 answer

116 views

GridViewComboBoxColumn Tag attribute

(C#)
When using a GridViewComboBoxColumn is it possible to set the Tag attribute on the cell item who's value comes from the grid combo box.

So I can call:
gridView1.CurrentRow.Cells["ColumnName"].Tag

I understand this would probably have something to do with the GridViewComboBoxColumn DataSource and what it is passed.

For Example
I have two GridViewComboBoxColumns in my GridView, call them "suppliers" and "products".
These items get populated from a database where each has a GUID and a Name.
I would like the Name to show in the grid combobox item for each column and the GUID to be assigned to the grid combo box item tag (or some other place).
When the user changes the "supplier" in any row, I would like to fetch the list of products from the database by searching for the supplier GUID.
Currently it seems all I can get back is the string name. I can see the gridView1.CurrentRow.Cells["ColumnName"].Tag however it is null

Any help would be appreciated, and if you need more info or something to be clearer please ask.

Thanks In advance
Tom.

GridView

answered on 17 Aug 2011

2 answers

161 views

moving Appointment programmatically

Hallo!

Please, help!
How to shift or move existed appointment pragmatically.

Scheduler and Reminder

answered on 17 Aug 2011

1 answer

141 views

Custom Appointment Event Handling And DataBound Resource.Color Code Snippet!

Hello Telerik Members,

I have done "A Lot" of searching the net to figure out the best way to Update my datasource or database without User interaction. I was very surprised when i did not see a "AppointmentCreated" event for RadScheduler .... Not sure why this was never an event.
Anyways, I have spent some time to try to give you guys a little more flexibility in the events that happen at runtime.

Also, was unable to find answers to how to assign each resource a color with a databound Scheduler. I was able to get this working as well. I will provide the code for this while here. Hopefully Telerik admins will see this and make it in the code library or sticky this thread ?

Anyways, here you go:

Custom Event Handling:

Imports System.Collections.Generic

Imports System.ComponentModel

Imports System.Data

Imports System.Drawing

Imports System.Linq

Imports System.Text

Imports Telerik.WinControls.UI

Imports Telerik.WinControls.Data



' EVENT HANDLER FOR APPOINTMENTS COLLECTION CHANGED CALLS FUNCTION 

' Appointments_CollectionChanged()

' CAN ADD THIS TO THE FORM_LOAD EVENT

AddHandler RadScheduler1.Appointments.CollectionChanged,



AddressOf

Appointments_CollectionChanged

'Appointments_CollectionChanged()

Private Function Appointments_CollectionChanged(ByVal sender As Object

ByVal e As NotifyCollectionChangedEventArgs) As String

' WILL PASS A ACTION TO CollectionChangedCompleted()

' DEPENDING ON THE ACTION PERFORMED AT RUNTIME

Select Case e.Action

Case NotifyCollectionChangedAction.Add

CollectionChangedCompleted("Add")

Case NotifyCollectionChangedAction.Batch

CollectionChangedCompleted("Batch")

Case NotifyCollectionChangedAction.ItemChanged

CollectionChangedCompleted("ItemChanged")

Case NotifyCollectionChangedAction.ItemChanging

CollectionChangedCompleted("ItemChanging")

Case NotifyCollectionChangedAction.Move

CollectionChangedCompleted("Move")

Case NotifyCollectionChangedAction.Remove

CollectionChangedCompleted("Remove")

Case NotifyCollectionChangedAction.Replace

CollectionChangedCompleted("Replace")

Case NotifyCollectionChangedAction.Reset

CollectionChangedCompleted("Reset")

End Select

Return String.Empty

End Function

' CollectionChangedCompleted()

' THIS FUNCTION CHECKS TO MAKE SURE THE RadScheduler APPOINTMENTS 

' WHERE UPDATED

Private Function CollectionChangedCompleted(ByVal action As String) As Boolean

If RadScheduler1.Appointments.IsUpdated Then

' FORWARD THE ACTION TO performAction() 

                 ' FOR PROCESSING CUSTOM OPERATIONS

performAction(action)

Return True

Else

Return False

End If

Return False

End Function

' performAction()

Private Function performAction(ByVal action As String) As Boolean

Select Case action

Case "Add"

'DO CUSTOM OPERATIONS

' ie: updating your datasource/database

' WITH OUT THE NEED FOR A "SAVE/UPDATE" BUTTON

' AUTOMATED UPDATING :)

Case "Batch"

'DO CUSTOM OPERATIONS

Case "ItemChanged"

'DO CUSTOM OPERATIONS

Case "ItemChanging"

'DO CUSTOM OPERATIONS

Case "Move"

'DO CUSTOM OPERATIONS

Case "Remove"

'DO CUSTOM OPERATIONS

Case "Replace"

'DO CUSTOM OPERATIONS

Case "Reset"

'DO CUSTOM OPERATIONS

End Select

End Function

And the Resources Color Code:

' CALL TO APPLY COLORS TO RESOURCES!!!!

Private Sub applyResourceColors()

Dim colors() As

Color = {Color.LightPink, Color.LightBlue, Color.LightCyan, Color.LightGreen, Color.LightSalmon, Color.LightYellow, Color.LightCoral}

Dim i As Integer = 0

For Each res As Resource In RadScheduler1.Resources

res.Color = colors(i)

' TO MAKE SURE WE DON'T GO OUT OF RANGE FOR THE COLORS() ARRAY

' IF WE REACH OUR ZERO BASED INDEX COUNT ON COLORS ARRAY WE RESET i TO 0

' ALLOWING IT TO REPEAT THE COLORS

Dim colorsCount As Integer = colors.Count

If Not i = colorsCount Then

i += 1

Else

i = 0

End If

Next

End Sub

[UPDATE] - I have noticed that for whatever reason that resource colors get reset after data updating ... not sure why yet but I have contacted Rob Shoemate on his blog about resource grouping to try and see if there is a better way of doing this! If I get any updates i will edit this post so that all can learn from it!

You can follow this blog for responses from Rob here

Hope this helps some of you!

Will continue to contribute when possible!

Thanks,
Mike

Scheduler and Reminder

answered on 17 Aug 2011

1 answer

97 views

Not showing deleted rows

Hello,

I'm using a DataTable to display data in a GridView. The DataTable is programatically maintained and contains entries in various RowStates including deleted.

Currently, the GridView is display the deleted entries, which I would like to hide but I need them to stay in the DataTable so I can send all the changes to the database once the user accepts the data.

I am using version 2010.3.10.1215 of RadControld for WinForms.

=======================================================
Update:
=======================================================
Was a programming bug on my part. I was bound to the wrong data source.

GridView

answered on 17 Aug 2011

1 answer

186 views

Image overlays

Has anybody an idea, how to paint image overlays over the listitems? One solution could be to create the item image dynamically, but I am looking for a better solution (less resource usage and faster processing). The grid view has the rowpaint event, but I don't find such a event for the list view.

ListView

answered on 17 Aug 2011

0 answers

94 views

change text color

Hello,

I use RadDropDownList.
I want to change the color of the selected text, the text which is shown when the drop-down pop-up is closed
I dont need to change any of the items on the drop-down list, just the selected one
How do I do it?

Thanks.

DropDownList

asked on 17 Aug 2011

1 answer

107 views

Documentation about how to work with RadRibbonBar Help button

Hi
I am trying to find documentation about how to work with RadRibbonBar Help button.
We are using version 2011.2.11.712.
Does anyone have a link or document how to work with this?

RibbonBar

answered on 16 Aug 2011