Questions on UI for WPF Forum

3 answers

143 views

Localizing FilteringControl with different resources

Hello,
I wanted to change the filter labels and localize them,
I used the LocalizationManager and it works fine,
However for three type of data, I'd like to display three type of labels, which are (numerics, DateTime, and strings)
I couldn't manage to localize these different columns with different resource files,
So went through the following solutions :
Solution I
created a new style/Template for the FilteringControl and applied this style to the control as shown bellow:

<ResourceDictionary>
<local:ImageTypeConverter x:Key="imageTypeConverter"></local:ImageTypeConverter><local:ContainsKeywordsIconConverter x:Key="containsKeywordsIconConverter"></local:ContainsKeywordsIconConverter> <ResourceDictionary.MergedDictionaries>


 

 

<ResourceDictionary Source="../Themes/Resources/Dictionaries/FilteringControlStyle.xaml"/>
 


</ResourceDictionary.MergedDictionaries>
 

</ResourceDictionary>
 
 

<telerik:GridViewDataColumn Header="Date" UniqueName="Date"   DataMemberBinding="{Binding DateCreation}" HeaderCellStyle="{StaticResource CustomHeaderCell}">

<telerik:GridViewDataColumn.FilteringControl >

<telerik:FilteringControl ></telerik:FilteringControl>

</telerik:GridViewDataColumn.FilteringControl>

</telerik:GridViewDataColumn>

Doing this, the PART_DistinctValuesList is not filled up with any data, neither the filter expressions is.
Solution II
Created a new control by copy/pasting the previouse style definition of the FilteringControl as shown bellow

........Up to the end,

Of course, my usercontrol implements IFilteringControl as stated in the help tutorial
But here I must redefine all actions of the controls, (Onfilter, onclear, selectAll and so on...)

Is there some missing thing I could add in either one of both solutions to overcome the corresponding shortcut ? or I must continue in the second solution by codding all necessary actions ? which seems to be a bit heavy for just localizing differents columns filters with different resources files,

Thanks in advance for your help,
Abdelkader

GridView

answered on 14 Sep 2010

1 answer

142 views

Expand first HierarchyChildTemplate

I have a grid which has a HierarchyChildTemplate .I want the HierarchyChildTemplate in the first row only to be expanded by default. Is there a way to do this?

Thanks,

Billy Jacobs

GridView

answered on 14 Sep 2010

1 answer

113 views

TreeView, how to stop certain nodes from been dragged into the root

Hi,

i have a treeview in my app, and its databoud to data using a HierarchicalDataTemplate
how can i stop certian flagged nodes from been dragged into the root of the treeview?
i need them to be draggable to anyother node, but not the root.

cheers

TreeView

answered on 14 Sep 2010

1 answer

95 views

Using RadDateTimePicker with Infragistics Docking Manager

Hi,

I have a RadDateTimePicker sitting inside a Infragistics docking manager, and the date selection pop up window does not display when you click the date/time selection button. If I move the RadDateTimePicker outside of the Infragistics docking manager, the control works fine. Is this a known issue?

TIA.

DatePicker

answered on 14 Sep 2010

1 answer

94 views

Selection Listbox control

Hello Telerik,

I wanted to develop a control which should surve the following features,

it should be a selectionlist control,

having features like,

Must support images/text at the lists

Must support multi selection

Must generate events where I add new elements at one of the two lists

Can sort content of the lists

Data will be introduced from an XML file or Database

Must support data groups

Must have the option of select only "selected elements" or all the items

Must return the list of selected items

Did you have any control that provides above features ?

Regards,
Srinivas

General Discussions

answered on 14 Sep 2010

1 answer

146 views

Custom Menubar Implementation

Hi,

We are implementing a custom menu bar for which RadMenu is the underlying control using template approach (controltemplate).

We are able to bind all properties but coming to UI part, our custom control is just showing the menubar with the header items and when we click on
any menuitem, the sub menu's are not showing up.

We couldn't figure what was the actual problem here.

We hope you can give a helping hand in this regard.

Below is the code snippet for generic.xaml......

<Setter Property="Background"

Value="White" />

<Setter Property="Foreground"

Value="Black" />

<Setter Property="BorderBrush"

Value="Black" />

<Setter Property="BorderThickness"

Value="1" />

<Setter.Value>

<ControlsNavigation:RadMenu Name="PART_TngMenuBar"

DataContext="{TemplateBinding Property=DataContext}"

ItemsSource="{Binding ItemsSource, RelativeSource={RelativeSource TemplatedParent}, Mode=TwoWay}"

ItemTemplate="{TemplateBinding Property=ItemTemplate}"

ItemTemplateSelector="{TemplateBinding Property=ItemTemplateSelector}"

ItemContainerStyle="{TemplateBinding Property=ItemContainerStyle}"

ItemContainerStyleSelector="{TemplateBinding Property=ItemContainerStyleSelector}"

FontSize="{TemplateBinding Property=FontSize}"

FontStyle="{TemplateBinding Property=FontStyle}"

Foreground="{TemplateBinding Property=Foreground}"

ClickToOpen="{TemplateBinding Property=ClickToOpen}"

ShowDelay="{TemplateBinding Property=ShowDelay}"

HideDelay="{TemplateBinding Property=HideDelay}"

Orientation="{TemplateBinding Property=Orientation}"

>

</ControlsNavigation:RadMenu>

</ControlTemplate>

</Setter.Value>

</Setter>

</Style>

<Setter.Value>

<ControlsNavigation:RadMenuItem Name="PART_TngMenuBarItem"

Header="{TemplateBinding Property=Header}"

></ControlsNavigation:RadMenuItem>

</ControlTemplate>

</Setter.Value>

</Setter>

</Style>

Below is the code snippet for our custom control Menubar.cs code......

public class TngMenuBar : Control

{

#region

Constructors

public TngMenuBar()

{

DefaultStyleKey =

typeof(TngMenuBar);

Items =

new TngMenuBarItemCollection();

}

#endregion

public static DependencyProperty ItemsProperty = DependencyProperty.Register(

"Items",

typeof(TngMenuBarItemCollection),

typeof(TngMenuBar),

null);

public TngMenuBarItemCollection Items

{

get { return this.GetValue(ItemsProperty) as TngMenuBarItemCollection; }

set { this.SetValue(ItemsProperty, value); }

}

public event RoutedEventHandler ItemClick;

void TngMenu_MouseLeftButtonUp(object sender,

MouseButtonEventArgs e)

{

if (ItemClick != null)

ItemClick(

this, new RoutedEventArgs());

}

public override void OnApplyTemplate()

{

base.OnApplyTemplate();

RadMenu menu = this.GetTemplateChild("PART_TngMenuBar") as RadMenu;

if (menu == null)

return;

for (int i = 0; i < this.Items.Count; i++)

{

TngMenuItem menuItem = this.Items[i];

menu.Items.Add(menuItem);

}

#region

Property: DataContext

private Object _dataContext;

public Object DataContext

{

get { return GetValue(DataContextProperty); }

set { SetValue(DataContextProperty, value); }

}

public static readonly DependencyProperty DataContextProperty =

DependencyProperty.Register(

"DataContext", typeof(Object), typeof(TngMenuBar),

new PropertyMetadata((o, e) =>

{

((

TngMenuBar)o).UpdateDataContext((Object)e.NewValue);

}));

private void UpdateDataContext(Object sel)

{

_dataContext = sel;

}

#endregion

#region

Property: ItemsSource

private IEnumerable _itemsSource;

public IEnumerable ItemsSource

{

get { return (IEnumerable)GetValue(ItemsSourceProperty); }

set { SetValue(ItemsSourceProperty, value); }

}

public static readonly DependencyProperty ItemsSourceProperty =

DependencyProperty.Register(

"ItemsSource", typeof(IEnumerable), typeof(TngMenuBar),

new PropertyMetadata((o, e) =>

{

((

TngMenuBar)o).UpdateItemsSource((IEnumerable)e.NewValue);

}));

private void UpdateItemsSource(IEnumerable sel)

{

_itemsSource = sel;

}

#endregion

#region

Property: ItemTemplate

private DataTemplate _itemTemplate;

public DataTemplate ItemTemplate

{

get { return (DataTemplate)GetValue(ItemTemplateProperty); }

set { SetValue(ItemTemplateProperty, value); }

}

public static readonly DependencyProperty ItemTemplateProperty =

DependencyProperty.Register(

"ItemTemplate", typeof(DataTemplate), typeof(TngMenuBar),

new PropertyMetadata((o, e) =>

{

((

TngMenuBar)o).UpdateItemTemplate((DataTemplate)e.NewValue);

}));

private void UpdateItemTemplate(DataTemplate sel)

{

_itemTemplate = sel;

}

#endregion

#region

Property: ItemTemplateSelector

private DataTemplateSelector _itemTemplateSelector;

public DataTemplateSelector ItemTemplateSelector

{

get { return (DataTemplateSelector)GetValue(ItemTemplateSelectorProperty); }

set { SetValue(ItemTemplateSelectorProperty, value); }

}

public static readonly DependencyProperty ItemTemplateSelectorProperty =

DependencyProperty.Register(

"ItemTemplateSelector", typeof(DataTemplateSelector), typeof(TngMenuBar),

new PropertyMetadata((o, e) =>

{

((

TngMenuBar)o).UpdateItemTemplateSelector((DataTemplateSelector)e.NewValue);

}));

private void UpdateItemTemplateSelector(DataTemplateSelector sel)

{

_itemTemplateSelector = sel;

}

#endregion

#region

Property: ItemContainerStyle

private Style _itemContainerStyle;

public Style ItemContainerStyle

{

get { return (Style)GetValue(ItemContainerStyleProperty); }

set { SetValue(ItemContainerStyleProperty, value); }

}

public static readonly DependencyProperty ItemContainerStyleProperty =

DependencyProperty.Register(

"ItemContainerStyle", typeof(Style), typeof(TngMenuBar),

new PropertyMetadata((o, e) =>

{

((

TngMenuBar)o).UpdateItemContainerStyle((Style)e.NewValue);

}));

private void UpdateItemContainerStyle(Style sel)

{

_itemContainerStyle = sel;

}

#endregion

Below is the code snippet for our custom control MenuItem.cs code......

public class TngMenuItem:ContentControl

{

#region

Constructors

public TngMenuItem()

{

DefaultStyleKey =

typeof(TngMenuItem);

Items =

new TngMenuBarItemCollection();

}

#endregion

public static DependencyProperty ItemsProperty = DependencyProperty.Register(

"Items",

typeof(TngMenuBarItemCollection),

typeof(TngMenuItem),

null);

public TngMenuBarItemCollection Items

{

get { return this.GetValue(ItemsProperty) as TngMenuBarItemCollection; }

set { this.SetValue(ItemsProperty, value); }

}

public override void OnApplyTemplate()

{

base.OnApplyTemplate();

RadMenuItem menuitem = this.GetTemplateChild("PART_TngMenuBarItem") as RadMenuItem;

if (menuitem == null)

return;

for (int i = 0; i < this.Items.Count; i++)

{

TngMenuItem cmi = this.Items[i];

menuitem.Items.Add(cmi);

}

#region

Property: Header

private Object _header;

public virtual Object Header

{

get { return GetValue(HeaderProperty); }

set { SetValue(HeaderProperty, value); }

}

public static readonly DependencyProperty HeaderProperty =

DependencyProperty.Register(

"Header", typeof(Object), typeof(TngMenuItem),

new PropertyMetadata((o, e) =>

{

((

TngMenuItem)o).UpdateHeader((Object)e.NewValue);

}));

private void UpdateHeader(Object sel)

{

_header = sel;

}

#endregion

Below is the code snippet for our custom control MenuItemcollection.cs code......

public class TngMenuBarItemCollection : ObservableCollection<TngMenuItem>

{

}

Menu

answered on 14 Sep 2010

5 answers

2.2K+ views

Hide or show columns

Hi. I'm developing a form on which the user can select one of many reports to show, and I have two questions on the GridView:

Do you always have to specify a Columns collection? I mean, because I can have many different reports for the same GridView, I want to be able to show them all without having to specify the columns individually.
How do you programatically hide or show a column at a specific index or with a specific header? My user wants to be able to hide some columns before exporting the report results, so I'm planning on showing him a CheckBox list with the columns, so he can choose which ones to show/hide.

Thanks a lot.

GridView

answered on 13 Sep 2010

6 answers

233 views

RadGridView Edit Problem

I have following column amongst other columns:

...

<grid:GridViewDataColumn IsReadOnly="False" IsSortable="False" Header="Comment"

DataMemberBinding="{Binding Comment}" MaxWidth="250" IsResizable="False" >

<grid:GridViewDataColumn.CellEditTemplate>

</DataTemplate>

</grid:GridViewDataColumn.CellEditTemplate>

</grid:GridViewDataColumn>

...

Issue:

When there is more than one row in the grid, editing of this cell can be ended in whatever way (by focusing on some other field, pressing enter... etc.) and the grid will retain the value entered. Such value will also be updated into the database by:

private

void radGridView1_CellEditEnded(object sender, GridViewCellEditEndedEventArgs e)
{...}

However, when there is only one row in the grid, pressing enter to end the cell edit works for retaining the value just entered for the cell but not triggering "CellEditEnded". Therefore, the value entered is not being put into the database...

Is there anyway someone help me with this?

Thanks for your time in advance,

K

GridView

answered on 13 Sep 2010

1 answer

72 views

Quadrant style gauge dyncamically..

i need to create quadrant-style gauge and semicircle gauge dynamically using vb.net or c#.net code please help me out..!!

Regards,
Kapil Garg

Gauges

answered on 13 Sep 2010

6 answers

383 views

when adding a new row, the RowEditEnded event fires before the new row appears

Hello :)

I have a problem when I try to add a new row to the gridview,

In short, I have an empty gridview and the event RowEditEnded fires before the new row appears for editing and without the user presses enter when adding a new row into the gridview when the grid view is not empty (when the gridview is empty RowEditEnded event fires after the user presses enter).

My scenario is the following:

When the gridview is empty, I use the BeginInsert() method to insert a new row, then the handler for the AddingNewDataItem gets executed, then appears a new row on the gridview with the first cell on edit mode, then I fill all the cells on the gridview and after that I hit enter, after I press enter the handler for the RowEditEnded event gets executed with e.EditOperationType==Insert and e.EditAction==Commit, (in this handler I add the new row to a data base) and so far so well, but when I want to insert an other new row, the handler for the AddingNewDataItem event gets executed and just after that (and here is the problem) the handler for the RowEditEnded event gets executed with e.EditOperationType==Insert and e.EditAction==Commit (without the new row appears for editing and without the user presses enter) and after that the row appears on the grid view ready for editing (also for default appears the last cell of the row in edit mode and for this reason I have to press esc and go to the first cell of the row), so the RowEditEnded event fires before the new row appears for editing and without the user presses enter.

Is this the default behavior or am I doing something wrong?

void NuevoProveedorButton_Click(object