Questions on UI for WPF Forum

4 answers

153 views

How do I change the image in the grid and store the result in database?

Hello!
I'm sorry for my english ;)

I want to download images in a grid from a database, edit them and save the result back to base.

I have a database (SQLite) that has a table with images.

I use the grid as follows:

<Window.Resources>

<my:GoodsInStoreDataSet x:Key="dsMy" />

<CollectionViewSource x:Key="vs_t_test" Source="{Binding Path=t_test, Source={StaticResource dsMy}}" />

</Window.Resources>

<Grid DataContext="{StaticResource vs_t_test}">

<telerik:RadGridView ItemsSource="{Binding}" Name="rdGrid" AutoGenerateColumns="False" MouseDoubleClick="rdGrid_MouseDoubleClick">

<telerik:RadGridView.Columns>

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

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

<telerik:GridViewImageColumn DataMemberBinding="{Binding Picture}" Header="Pic" MinWidth="100" ImageStretch="Fill" MaxWidth="100"/>

</telerik:RadGridView.Columns>

</telerik:RadGridView>

</Grid>

Code when loading windows

private void Window_Loaded(object sender, RoutedEventArgs e)

{

GoodsInStore.GoodsInStoreDataSet dsGIS = ((GoodsInStore.GoodsInStoreDataSet)(this.FindResource("dsMy")));

GoodsInStore.GoodsInStoreDataSetTableAdapters.t_testTableAdapter ta_t_test = new GoodsInStore.GoodsInStoreDataSetTableAdapters.t_testTableAdapter();

ta_t_test.Fill(dsGIS.t_test);

System.Windows.Data.CollectionViewSource vs_t_test = ((System.Windows.Data.CollectionViewSource)(this.FindResource("vs_t_test")));

vs_t_test.View.MoveCurrentToFirst();

}

When the window boot - displays a grid with pictures. All works well.
I can make changes in the "Note" and save the changes to the database.
Saving changes is as follows:

private void SaveButton_Click(object sender, RoutedEventArgs e)

{

GoodsInStore.GoodsInStoreDataSet dsGIS = ((GoodsInStore.GoodsInStoreDataSet)(this.FindResource("dsMy")));

GoodsInStore.GoodsInStoreDataSetTableAdapters.t_testTableAdapter ta_t_test = new GoodsInStore.GoodsInStoreDataSetTableAdapters.t_testTableAdapter();

ta_t_test.Update(dsGIS.t_test);

}

I'm trying to change the picture in the grid as follows:

private void OnCellDoubleClick(object sender, RadRoutedEventArgs args)

{

GridViewCellBase cell = args.OriginalSource as GridViewCellBase;

if (cell != null && cell.Column.UniqueName == "Picture")

{

Microsoft.Win32.OpenFileDialog dlg = new Microsoft.Win32.OpenFileDialog();

dlg.DefaultExt = ".jpg";

dlg.Filter = "Jpeg pictures (.jpg)|*.jpg";

Nullable<bool> result = dlg.ShowDialog();

if (result == true)

{

string filename = dlg.FileName;

BitmapImage myBitmapImage = new BitmapImage();

myBitmapImage.BeginInit();

myBitmapImage.UriSource = new Uri(filename, UriKind.RelativeOrAbsolute);

myBitmapImage.EndInit();

rdGrid.CurrentCell.Value = myBitmapImage;

}

No changes (not in the grid, not in the database) does not occur. The grid displays the old picture.

Tell me what am I doing wrong?
How to change the image with the grid and in the database?

GridView

answered on 04 Nov 2010

1 answer

70 views

Global Grid Style Breaks RowExpand/Collapse

Having this style defined in app.xaml...

<Style TargetType="Grid">

<Setter Property="Background" Value="#00000000" />

</Style>

.. breaks the TreeListView expand/collapse behaviour. This breaks regardless of the value of the Background. This was an extremely time consuming and frustrating bug to track down.

Full sample:

MainWindow.xaml

<Window x:Class="TreeListViewExample.MainWindow"

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

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:Controls="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.GridView" Title="MainWindow" Height="350" Width="525">

<Grid>

<Controls:RadTreeListView ItemsSource="{Binding Items}" AutoGenerateColumns="False">

<Controls:RadTreeListView.ChildTableDefinitions>

<Controls:TreeListViewTableDefinition ItemsSource="{Binding Children}"/>

</Controls:RadTreeListView.ChildTableDefinitions>

<Controls:RadTreeListView.Columns>

<Controls:GridViewDataColumn Header="Test" DataMemberBinding="{Binding Text}"/>

</Controls:RadTreeListView.Columns>

</Controls:RadTreeListView>

</Grid>

</Window>

App.xaml

<Application x:Class="TreeListViewExample.App"

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

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

StartupUri="MainWindow.xaml">

<Application.Resources>

<Style TargetType="Grid">

<Setter Property="Background" Value="Green"/>

</Style>

</Application.Resources>

</Application>

Codebehind:

public partial class MainWindow : Window

{

public MainWindow()

{

InitializeComponent();

DataContext = this;

Items = new ObservableCollection<TestClass>();

var child3 = new TestClass {Text = "child 3"};

var child2 = new TestClass {Text = "child 2", Children = new[] {child3}};

var child = new TestClass {Text = "child", Children = new[] {child2}};

Items.Add(child);

}

public ObservableCollection<TestClass> Items { get; private set; }

}

public class TestClass

{

public string Text { get; set; }

public IEnumerable<TestClass> Children { get; set; }

}

Cheers,

Andy

TreeListView

answered on 04 Nov 2010

1 answer

142 views

TimeSlotTemplateSelector

How do you change the time slot template in the ScheduleView? In the Scheduler you would use the TimeSlotTemplateSelector.

ScheduleView

answered on 04 Nov 2010

4 answers

174 views

Beta Q3 2010 ScheduleView Questions

Hello team and congratulations for the job done with this new tool!

I'm a Silverlight developer and I need to display a ressource planning using 2 groups. The native scheduler isn't able to do this, that's why i just tried this new scheduler for wpf.
It seems to be well working, but I have several questions:

- Is it possible to change the date format in a timeline view? In my case I need to display days and not hours since I want to display a 2-months planning.
I used to set the "TimeLineHeaderFormat" in the RadScheduler control, but it doesn't seem to exist anymore.

- When my groups are displayed horizontally, their title are displayed vertically. Is it possible to change the orientation of the text?

- Furthermore, is it possible to change the content of the group header? I mean I would add an image of the concerned ressource in the header.

I just added a screenshot to illustrate my questions.

Thank you for your answer.

Best Regards,

Julien LOFFICIAL

ScheduleView

answered on 04 Nov 2010

3 answers

384 views

Problems when adding new rows and validating

Hello,

I am trying to use RadGridView in one project but I have been experiencing some difficulties

Basically I have a GridView with ItemSource binding to my list of items.

Problem is data, when I try to add a new row to the grid, using BeginInsert method,
instead of start editing the new row, the grid starts editing a blank cell on the previous row (this cell can be left blank)

Also sometimes when a row enters in editing mode, doesn't matter what I do (press insert key, etc..)
it stays this way...

P.S: Just to notice that I am using MVVM, so all the events are made by use of Commands

Thanks a lot

GridView

answered on 04 Nov 2010

1 answer

112 views

EF inheritance and the data grid

Hi,

I am actually evaluating a powerful grid and I am choosing between the yours, the devexpress one and xceed.

Everything is working fine except one problem :

I am modeling data using entity framework. In my modeling, the class 'Collaborator' is teh base class for the other class 'User'.

I am getting coll which is the collection of type 'Collaborator'. So, the collection will contain instances of both classes.

If I bind the grid to a collectionviewsource created on coll I get blank rows and sometimes exceptions are thrown. (an Observable collection is created as an intermediary object).

If I bind directly to coll everything goes well.

So, what's the problem ?

Best regards

GridView

answered on 04 Nov 2010

1 answer

244 views

RadContextMenu inheritance in RadTreeView

I am using RadTreeView to display a hierarchy of different objects. Each object in the tree may have an object specific context menu or no context menu at all. The problem is if I set a context menu on a node in the tree all of the children of that node in the treeview display the same context menu unless I explicitely set a different context menu for the child node. This works fine if the child node has a context menu, but if it does not I always get the parent node's context menu which generally does not apply to this node. Explicitly setting the child node's context menu to null does not help. So I can not have tree nodes with no context menu that are children of a tree node that has a context menu. Is there any way around this?

ContextMenu

answered on 04 Nov 2010

3 answers

143 views

Add Custom Range For AxisY

Hi,

I use this code for setting a custom range for AxisY in my chart, but only last range apply in chart and other range clear by it.

radchart.DefaultView.ChartArea.AxisY.AutoRange = false;

radchart.DefaultView.ChartArea.AxisY.AddRange(0, 100000000, 100000000 / 4);

radchart.DefaultView.ChartArea.AxisY.AddRange(100000000, 1000000000, (1000000000 - 100000000)/4);

radchart.DefaultView.ChartArea.AxisY.AddRange(1000000000, max2, (max2 - 1000000000) / 2);

Chart

answered on 04 Nov 2010

1 answer

100 views

Image from window Predefined Dialogs

How to change the image of Alert, prompt or cofirm? The image, no the icon
Thanks

PD: Sorry form my english

Window

answered on 04 Nov 2010

7 answers

196 views

SetSerializationTag is not working

I have some windows that I am creating programmatically. I found the RadDocking.SetSerializationTag() method to set the tag, but when I open my windows from the radDocking.LoadLayout() the code loaded windows do not have controls on them. If I do not call the layout function, then everything is loaded just fine. Here is my code:

RadPane redlineBottomPane = new RadPane();

redlineBottomPane.Name = "rpnBottomRedline";

redlineBottomPane.Header = "Redline Sessions";

redlineBottomPane.Title = "Redline Sessions";

redlineBottomPane.CanUserClose = false;

redlineBottomPane.CanDockInDocumentHost = true;

redlineBottomPane.IsPinned = true;

Telerik.Windows.Controls.RadDocking.SetSerializationTag(redlineBottomPane, "RedlinePluginPane");

Please let me know what is wrong with this. Thanks in advance.

Docking