Questions on UI for WPF Forum

1 answer

124 views

My goal is to take a datatable based (dynamic, unknown column names or row values until runtime) gridview and apply formatting or cell styling (column foreground, background, font weight, text wrapping and column width) from settings the user defines. When I generate my columns (GridViewBoundColumnBase) I see that background color is simple but changing the font weight or color seems a mystery...

From what I have read it would be achieved with some sort of converter and datatemplate. Any documentation or examples that could assist me complete this task that actually uses a datatable and could do font weight, color, column background color and text wrapping etc...? I don't want to reinvent the wheel if as much as possible.

GridView

answered on 04 Jul 2012

1 answer

100 views

Could not access the rad grid column via their name

Hi,

I am implementing the rad grid at run time.I need to access the value of a cell (say,case_number) in every row by column name,Plz let me know how to do it?

here is my code,

   IList<GridViewRow> rows = radGrid1.ChildrenOfType<GridViewRow>().ToList();
           foreach (GridViewRow drow in rows)
{
                                   //drv.Cells[1].Text;          I can do this via column index but I need the same with column name
}

Thanks

GridView

answered on 04 Jul 2012

6 answers

227 views

[Solved] Content menus shared across RichTextBoxes?

Hi,

I've encountered a weird behavior. I am trying to hide certain parts (table and font formatting) of a RadRichTextBox's content menu using the "Use ContextMenuBuilder class" approach of this example: http://www.telerik.com/help/wpf/radrichtextbox-features-context-menu.html

This is the class I created to hide certain parts of the context menu:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using Telerik.Windows.Documents.UI.Extensibility;

using Telerik.Windows.Documents.UI;

using Telerik.Windows.Controls.RichTextBoxUI.Menus;

using Telerik.Windows.Documents.Model;

using Telerik.Windows.Controls;

class CustomMenuBuilder : ContextMenuContentBuilder

{

private RadRichTextBox radRichTextBox;

public CustomMenuBuilder(RadRichTextBox radRichTextBox)

: base(radRichTextBox)

{

this.radRichTextBox = radRichTextBox;

}

protected override ContextMenuGroup CreateTableCommands()

{

ContextMenuGroup g = new ContextMenuGroup();

return g;

}

protected override ContextMenuGroup CreateHyperlinkCommands(bool forExistingHyperlink)

{

ContextMenuGroup g = new ContextMenuGroup();

return g;

}

protected override ContextMenuGroup CreateTextEditCommands()

{

ContextMenuGroup g = new ContextMenuGroup();

return g;

}

And I then set my RichTextBox to use that new Context menu in another class:

((Telerik.Windows.Controls.RichTextBoxUI.ContextMenu)rtb1.ContextMenu).ContentBuilder = new CustomMenuBuilder(rtb1);

This works perfectly if you only have 1 RichTextBox you want to do this on. The problem appears if you want to do this on many RichTextBoxes:

((Telerik.Windows.Controls.RichTextBoxUI.ContextMenu)rtb1.ContextMenu).ContentBuilder = new CustomMenuBuilder(rtb1);

((Telerik.Windows.Controls.RichTextBoxUI.ContextMenu)rtb2.ContextMenu).ContentBuilder = new CustomMenuBuilder(rtb2);

((Telerik.Windows.Controls.RichTextBoxUI.ContextMenu)rtb3.ContextMenu).ContentBuilder = new CustomMenuBuilder(rtb3);

Now, if you right click and paste in rtb1 or rtb2, the text appears in rtb3 (the last RichTextBox for which we assigned the menu). It seems that the 3 menus are pointing to the same instance even though they are all new CustomMenuBuilder objects. Any way of hiding context menu sections and having each menu related to the right RichTextBox?

Thanks,

-- Joel

RichTextBox

answered on 04 Jul 2012

6 answers

422 views

[Solved] GridView : "copy down" feature, a bit like in Excel

Hi,

I would like to know if it's possible to create a "copy down" functionnality in GridView, a bit like in Excel.

The objective would be to enter values in some cells in the first rown of my grid, to select these cells, and with a contextual menu have a shortcut to "copy these values on every row of my grid".

The objective, is for users to type values only once instead of typing the same value on every row of the grid. I hope i'm clear enough in my explaination.

Thanks a lot for your help!

GridView

answered on 04 Jul 2012

2 answers

253 views

ItemsSource is not updated on insert?

I Have a GridView bound to a ItemsSource and I'm using mvvm. The problem is when I click "Insert" and/or "Click here to add new item" nothing happens. I can edit the data in the rows and delete row and then grid updates. But not insert new rows.

WPF Code:

<telerik:RadGridView ItemsSource="{Binding WellCompletionEvaluation.CompletionItems}" AutoGenerateColumns="False" CanUserInsertRows="True" Grid.Row="24" Grid.Column="0" Grid.ColumnSpan="6"

MinHeight="200" MaxHeight="500" ShowInsertRow="True" ShowGroupPanel="False"

CanUserFreezeColumns="False" RowIndicatorVisibility="Collapsed">

In my model I have this kind of code:

public class WellCompletionEvaluationViewModel : ValidatedViewModelBase

{

private readonly JobInfoOperationWellCompletionEvaluation model;

public ObservableCollection<WellCompletionEvaluationCompletionItemsViewModel> CompletionItems { get; private set; }

public WellCompletionEvaluationViewModel(JobInfoOperationWellCompletionEvaluation model)

{

this.model = model;

WTConfiguration = new WellCompletionEvaluationWTConfigurationViewModel(model.WTConfiguration);

this.CompletionItems = new ObservableCollection<WellCompletionEvaluationCompletionItemsViewModel>(

from p in this.model.completionItems

select new WellCompletionEvaluationCompletionItemsViewModel(p));

}

public JobInfoOperationWellCompletionEvaluation Model { get { return this.model; } }

public WellCompletionEvaluationWTConfigurationViewModel WTConfiguration

{

get;

set;

}

ValidatedViewModelBase implements IDataErrorInfo and ViewModelBase that implements INotifyPropertyChanged and IDisposable

Is there something wrong with my view model+

Best Regards
Rune

GridView

answered on 04 Jul 2012

3 answers

245 views

ScheduleView NullReferenceException when changing the view

Hi.

I have a problem with the ScheduleView. When changing the view from Month to Day, i get a NullReferenceException.

I've attached a sample.

Steps to reproduce the problem :
* run the sample
* expand the cell filled with data
* switch the view to Day

I get a NullReferenceException at that point.

The stack trace is :

at Telerik.Windows.Controls.GroupHeader.InitializeColumnsAndUpdateMaxIntersectedAppointmentsCount()

at Telerik.Windows.Controls.GroupHeader.Initialize()

at Telerik.Windows.Controls.AppointmentsPanel.AddHeaders(GroupHeader header, Boolean isHorizontal, Boolean showWeekHeaders, Calendar calendar, CalendarWeekRule weekRule, DayOfWeek firstDayOfWeek)

at Telerik.Windows.Controls.AppointmentsPanel.MeasureOverride(Size availableSize)

at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

at System.Windows.UIElement.Measure(Size availableSize)

at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)

(...)

The xaml i used is :

<Window x:Class="scheduleViewError.MainWindow"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"

xmlns:scheduleView="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.ScheduleView"

Title="MainWindow" Height="350" Width="525">

<Grid>

<telerik:RadScheduleView x:Name="scheduleview" Grid.Row="2" Grid.Column="2" Margin="0"

AppointmentsSource="{Binding Appointments}"

BorderThickness="0 1 1 1"

FirstVisibleTime="06:00">

<telerik:RadScheduleView.ViewDefinitions>

<telerik:MonthViewDefinition />

<telerik:DayViewDefinition />

</telerik:RadScheduleView.ViewDefinitions>

</telerik:RadScheduleView>

</Grid>

</Window>

the code-behind is :

public partial class MainWindow : Window

{

public MainWindow()

{

InitializeComponent();

this.DataContext = new ViewModel();

}

public class ViewModel

{

private ObservableAppointmentCollection _apppointments;

public ViewModel()

{

var today = DateTime.Today;

var x = new ObservableCollection<Appointment>(Enumerable.Range(9, 14).Select(i =>

new Appointment

{

Start = today.AddMinutes(i * 60 + 15),

End = today.AddMinutes((i + 1) * 60),

Subject = string.Format("Appointment num. {0}", i),

}));

_apppointments = new ObservableAppointmentCollection();

_apppointments.AddRange(x);

}

public ObservableAppointmentCollection Appointments

{

get

{

return _apppointments;

}

set

{

if (_apppointments == value)

return;

_apppointments = value;

}

I used the 2012.2.607.40 version of the library with .Net Framework 4.0.

ScheduleView

answered on 04 Jul 2012

1 answer

102 views

binding

First, I'm a beginner. I saw the examples/demos but all asume that the list of pages for the book is hardcoded in the program. How to make a book that can load any number of pictures by simply placing those pictures in a folder? Or, better, if those files are listed in a text file or xml file how to read from this file and load the items in the book.
Another issue: In the binding example you are using a xmlns:viewModels="clr-namespace:Telerik.Windows.Examples.Book.Binding". Durring build I get an error about that line (I have exacly the same lines of code as your example and added the same pictures in the project). Can you help me find what I'm missing?

Book

answered on 04 Jul 2012

10 answers

1.3K+ views

How can you independently change the FontSize for Row Data and Column Headers?

Right now if you change the RadTreeListView.FontSize it changes ALL FONTS on the control.

I want to be able to independently set the Font Size of the data displayed in the rows and the column headers. Basically I want to fix the column header text to one size, and then allow the user to change the font size of the data in the rows.

However it looks really bad when the user is changing this and the header changes with it. I basically have hooked up the scroll wheel to change the font size on the TreeListView and it works just kind of looks bad that the header is changing with it and would like to lock that down if possible.

Thanks.

TreeListView

answered on 03 Jul 2012

12 answers

337 views

RadGridView and Docking problem

Hi,

We have been using 2010 Q2 all this while. We recently upgraded to 2012 Q1. After the upgrade we are running into multiple issues.

We are using Docking in our application. On one of the radpanes we have gridview. On this gridview the showgrouppanel is set to false.
Now when we undock one of the pinned dockpanes, the gridview displays grouppanel and the data is grouped.
This should not be the case.

GridView

answered on 03 Jul 2012

3 answers

493 views

Background of disabled DatePicker

Hey Guys,

Can you give me a hand and tell me how to change Background Color of TextBox of disabled DatePicker? I attached the screenshot.

Regards,
Tom

DatePicker

answered on 03 Jul 2012