WPF Discussion Boards

Re: WPF: Get offical height by auto-height

Abhinav S19-Jun-10 6:56

Abhinav S

19-Jun-10 6:56

Your question is not very clear - are you talking about setting the auto property in code?
Then, see here.

Quidquid latine dictum sit, altum videtur.

Whatever is said in Latin sounds profound.

silverlight web text editor

I_risho18-Jun-10 0:04

I_risho

18-Jun-10 0:04

hi all
hope any one to help me with a simple implementation of a web text editor with capabilities of copy, cut, paste as well as saving and opening files to/from server location
hope to help me as i'm a beginner and in real need for help
regards

Re: silverlight web text editor

Abhinav S19-Jun-10 6:52

Abhinav S

19-Jun-10 6:52

First if all, this is the WPF forum (and not the Silverlight forum).

For a silverlight sample on an editor, see here.

Quidquid latine dictum sit, altum videtur.

Whatever is said in Latin sounds profound.

DataGrid hides Elements

danieln5516-Jun-10 23:54

danieln55

16-Jun-10 23:54

Hi together,

I use the DataGrid-Control to display the content of the ObservableCollection<Node> CriteriaNodes, where the class "Node" contains some properties such as Title, Description, Value, etc.

When I run the project, the ObservableCollection is filled with 13 Node-Objects and, afterward, the Binding is set with
MyNodeGrid.ItemsSource = CriteriaNodes;

The loaded DataGrid now shows only the column-headers of the Node-Objects. When I create new Nodes at runtime, they are added BELOW 13 lines of free space in the DataGrid! When I order alphabetically, I can see some of my initialized 13 Nodes in those new lines.

I don't understand this strange behavior and would be grateful for help. Below is the constructor of the Code-Behind-class.

Daniel

public partial class RetrievingControl : UserControl
{
    BusinessMain MyBusinessMain;

    public ObservableCollection<Node> CriteriaNodes { get; set; }
    public ObservableCollection<Node> AlternativeNodes { get; set; }
    public ObservableCollection<Node> StakeholderNodes { get; set; }

    public RetrievingControl(BusinessMain pBusinessMain)
    {
        MyBusinessMain = pBusinessMain;

        CriteriaNodes = MyBusinessMain.CurrentProject.CriteriaNodes;
        AlternativeNodes = MyBusinessMain.CurrentProject.AlternativeNodes;
        StakeholderNodes = MyBusinessMain.CurrentProject.StakeholderNodes;

        InitializeComponent();
        MyNodeGrid.ItemsSource = CriteriaNodes;
    }

.. and the XAML-Part:

...
xmlns:data="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Data"
...
<data:DataGrid x:Name="MyNodeGrid" AutoGenerateColumns="True" </data:DataGrid> 
...

how to resolve this pop up Error saying :'this._postBackSettings.async' is null or not an object.

Ch.Gayatri Subudhi16-Jun-10 18:06

Ch.Gayatri Subudhi

16-Jun-10 18:06

Hi,

How to resolve this error :

A Run time error has occured.
Do you wish to Debug?

Line:782
Error saying :'this._postBackSettings.async' is null or not an object.

Thanks in Advance
With Regards,
Ch Gayatri

Re: how to resolve this pop up Error saying :'this._postBackSettings.async' is null or not an object.

Abhinav S16-Jun-10 18:23

Abhinav S

16-Jun-10 18:23

You need to post code here before someone can help you.

My signature "sucks" today

Re: how to resolve this pop up Error saying :'this._postBackSettings.async' is null or not an object.

Ch.Gayatri Subudhi16-Jun-10 18:30

Ch.Gayatri Subudhi

16-Jun-10 18:30

i got my answer

OnClientClick="this.disabled=true;__doPostBack(this.name,'');"

ReportDataSource name and value using WPF

NCZIMM16-Jun-10 12:14

NCZIMM

16-Jun-10 12:14

I have the following in a WPF window trying to open an RDLC report using a WindowsFormsHost. When the report opens there is a report header with no data. The query has no parameters and I have previewed the data in the data set many times.

I have seen many attempts to explain the meanings of ReportDataSource.Name and ReportDataSource.value but it is not yet clear to me what each is supposed to mean. I have not been able to implement anything but that which is listed below.

Thanks -

string reportPath = "C:\\Dev\\2010\\2010_BoxingAdmin\\BoxingAdmin\\BoxingAdmin\\Report1.rdlc";
string ds = "DEVELOPMENT;Initial Catalog=Boxing;Integrated Security=True";
ReportDataSource rds = new ReportDataSource("DataSet1", ds);
ReportViewer reportViewer = new ReportViewer();
reportViewer.ProcessingMode = ProcessingMode.Local;
reportViewer.LocalReport.ReportPath = reportPath;
reportViewer.LocalReport.DataSources.Add(rds);
windowsFormsHost1.Child = reportViewer;
reportViewer.RefreshReport(); Reply

XamlWriter and UserControl

Fabrizio Camagna16-Jun-10 7:30

Fabrizio Camagna

16-Jun-10 7:30

When I use XamlWriter with my usercontrol I obtain usercontrol XAML and the xaml tree of my usercontrol

<my:myusercontrol canvas.left="100" canvas.top="100">
<grid>
<textbox text="Ciao Mondo">
<grid>

instead

<my:myusercontrol canvas.left="100" canvas.top="100">

MyUserControl inherits from Usercontrol or ContentControl and is compiled in a external DLL.

Why WPF windows control Button, TextBox, etc... when is Serialized from XamlWriter hide their content?

Silverlight editor with wpf or windows form application

Fabrizio Camagna14-Jun-10 11:32

Fabrizio Camagna

14-Jun-10 11:32

I would like develope a WPF application to create Silverlight application, in this application I realize XAML files that guest
my silverlight library.
I have thought to use an equivalent WPF library that is a replica of
silverlight library and I could use these controls in my application, and then with xaml code compile and create xap files.

Expression Blend and Visual Studio 2010 are WPF and desktop application
but they can edit silverlight windows. How do they work?

Thanks,
Fabrizio

Write Silverlight editor with WPF application

Fabrizio Camagna14-Jun-10 11:30

Fabrizio Camagna

14-Jun-10 11:30

Duplicated question.

Pete O'Hanlon14-Jun-10 22:18

Pete O'Hanlon

14-Jun-10 22:18

Please only post the same question in one location.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

folder tree in silverlight

I_risho14-Jun-10 7:49

I_risho

14-Jun-10 7:49

i need to build a tree of folders in which i can click any node to display
i guess i need WCF service to do that
can any one help me????????

Re: folder tree in silverlight

Abhinav S14-Jun-10 22:34

Abhinav S

14-Jun-10 22:34

There are some articles available on the web.
See here for one. This one uses a script.

My signature "sucks" today

I need to diplay an image in silverlight image tag while combobox selceted item.

Ch.Gayatri Subudhi13-Jun-10 18:31

Ch.Gayatri Subudhi

13-Jun-10 18:31

Hi,

There is no properties in smart tag while selecting a item from combobox combox1_SelectionChanged for dipaying an image.Plz help me for this solution.

With Regards,
Ch.Gayatri Subudhi

Re: I need to display an image in silverlight image tag while combobox selected item.

Arun Jacob13-Jun-10 19:01

Arun Jacob

13-Jun-10 19:01

Your requirement is not clear. Can you give more details

Arun Jacob
http://codepronet.blogspot.com/

Re: I need to display an image in silverlight image tag while combobox selected item.

Ch.Gayatri Subudhi13-Jun-10 19:18

Ch.Gayatri Subudhi

13-Jun-10 19:18

I need display an image while selcting an item from combobox....like
combobox1_selecttionchanged
{

image1.visibilty==true;///this one giving error
}

wht i hv to do to display an image

With Regards
Ch.Gayatri

Re: I need to display an image in silverlight image tag while combobox selected item.

Arun Jacob13-Jun-10 19:55

Arun Jacob

13-Jun-10 19:55

If you are trying to change visibility of image control then,

image1.Visibility = Visibility.Visible;

But you can directly bind the image source from the XAML itself. You may need an IValueConvcerter for converting selected item to image source.

Arun Jacob
http://codepronet.blogspot.com/

Template

MrMcIntyre13-Jun-10 4:19

MrMcIntyre

13-Jun-10 4:19

Hi,

I am wanting to create a Silverlight Navigation Windows 7 Theme Template but everytime I want to create this type of project on my Visual Studio I keep on getting an error saying:

Error: this template attempted to load component assembly Microsoft.VisualStudio.Silverlight,Version=10.0.0.0, Cultrual=Neutral, PublicKeyToken=b03f5f7f11d503a. For more information on this problem and how to enable this template, please see documentation on Customising Project Template.

The problem I have is to find where the documentation is.

Andrew

Andrew McIntyre

Non Rectangular Window in WPF Help

snouto13-Jun-10 0:22

snouto

13-Jun-10 0:22

Hello everybody .

i am trying to make non rectangular window in wpf , using Rectangle with rounded corners
i have already done so , but the problem , i can't add controls on the window anymore .
i don't know why . here is the code .

<Window x:Class="TestingPOS.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:TestingPOS.Controls"
        x:Name="MainWindow"
        
    Title="Window1" Height="600" Width="600" Background="Transparent" AllowsTransparency="True" WindowStyle="None" MouseLeftButtonDown="Window_MouseLeftButtonDown">
    
    <Window.Template>
        <ControlTemplate>
            <Rectangle Stroke="Black" RadiusX="97.5" RadiusY="97.5" Canvas.Top="36">
                <Rectangle.Fill>
                    <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                        <GradientStop Color="Black" Offset="0"/>
                        <GradientStop Color="White" Offset="1"/>
                    </LinearGradientBrush>
                </Rectangle.Fill>
            </Rectangle>
        </ControlTemplate>
    </Window.Template>
   
    
</Window>

this code makes the window with rounded corners but i have made a user control login screen that i need to insert onto the window , the form doesn't accept any controls even like button or textbox
how can i do that task
Please help !

Human knowledge belongs to the world.

Re: Non Rectangular Window in WPF Help

Insincere Dave13-Jun-10 11:43

Insincere Dave

13-Jun-10 11:43

You need a ContentPresenter in your ControlTemplate and set the TargetType of the ControlTemplate too.

<Window.Template>
    <ControlTemplate TargetType="{x:Type Window}">
        <Grid>
            <Rectangle Stroke="Black" RadiusX="97.5" RadiusY="97.5" >
                <Rectangle.Fill>
                    <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                        <GradientStop Color="Black" Offset="0"/>
                        <GradientStop Color="White" Offset="1"/>
                    </LinearGradientBrush>
                </Rectangle.Fill>
            </Rectangle>
            <ContentPresenter />
        </Grid>
    </ControlTemplate>
</Window.Template>

WPF Databinding

Mojo2400NV12-Jun-10 1:38

Mojo2400NV

12-Jun-10 1:38

I have a list
List<submissionworkflow> listSWF
that i bind to a datagrid and that works fine like this:
toolkit:DataGridTextColumn Binding="{Binding Title}" Header="Emne"

But the 'SubmissionWorkflow' object have a property 'Participants' that is a collection of objects of the type 'Participant' and when I try to bind like this
toolkit:DataGridTextColumn Binding="{Binding Path = /Participants[0].Name}" Header="Participants name"
Nothing happens.
What am I doing wrong?

Re: WPF Databinding

Pete O'Hanlon13-Jun-10 12:14

Pete O'Hanlon

13-Jun-10 12:14

Remove the slash from before Participants[0]. As a hint, always check the Output window when running your app if you are getting binding errors.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

how to associate *.chm file to '?' button in WPF

SRKSHOME11-Jun-10 4:39

SRKSHOME

11-Jun-10 4:39

Hi,

When you click on '?'(right top corner) button in a WPF window, how to associate *.chm file to it?

any idea?

thanks

White Board using silverlight and Flash

11229410-Jun-10 23:20

112294

10-Jun-10 23:20

Hi All,

I want to use some collabartive white board for my project in which users can chat and at the time 3-4 pople works on the same board etc.

I want open source white baord for that purpous so that I can modify code according to me .

If any can tell me which one is better to use.

Silverlight whiteboard or flash white board .Please detail me with reasons which technology is better for this purpous.

It will be of great help if any one can provide link to open source collabarative whiteboards.

Thanks

Nitish

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