Re: Reading a XML file from IsolatedStorage ? - WPF Discussion Boards

13-Apr-09 18:00

Hi.
I'm reading a XML file that has been stored in IsolatedStorage.
But this Exception was occurring Root element is missing.
I'm dead sure that there isn't any troubles in the XML file, So I don't the know the result of the Exception Frown | :(

Could you guide me ?
Thank you.

This is my snippet code :

using (IsolatedStorageFile isoStore = IsolatedStorageFile.GetUserStoreForApplication())
{
	.
        .
        .
   
    string SettingFilePath = "CodeColorizer\\setting.xml";
    using (IsolatedStorageFileStream isoStream = new IsolatedStorageFileStream(SettingFilePath, FileMode.Create, isoStore))
    {
        isoStream.Position = 0;
        XmlReader xmlReader;
        xmlReader = XmlReader.Create(isoStream);
        //Moves the reader to the root element.                        
        <code>xmlReader.MoveToContent();</code>//Exception was occurring here
        string value;
        while (xmlReader.Read())
        {
            switch (xmlReader.NodeType)
            {
                case XmlNodeType.Element:
                    {
                        if (xmlReader.Name == "IsVB")
                        {
                            value = (string)xmlReader.ReadContentAs(Type.GetType("String"), null);
                            if (value == "True") { this.IsVB.IsChecked = true; this.IsCsharp.IsChecked = false; }
                            else if (value == "False") { this.IsVB.IsChecked = false; this.IsCsharp.IsChecked = true; }
                        }
                        else if (xmlReader.Name == "IsCsharp")
                        {
                            value = (string)xmlReader.ReadContentAs(Type.GetType("String"), null);
                            if (value == "True") { this.IsVB.IsChecked = false; this.IsCsharp.IsChecked = true; }
                            else if (value == "False") { this.IsVB.IsChecked = true; this.IsCsharp.IsChecked = false; }
                        }
                        else if (xmlReader.Name == "IsStriped")
                        {
                            value = (string)xmlReader.ReadContentAs(Type.GetType("String"), null);
                            if (value == "True") { this.IsStriped.IsChecked = true; }
                            else if (value == "False") { this.IsStriped.IsChecked = false; }
                        }
                        else if (xmlReader.Name == "HasLineNumber")
                        {
                            value = (string)xmlReader.ReadContentAs(Type.GetType("String"), null);
                            if (value == "True") { this.HasLineNumber.IsChecked = true; }
                            else if (value == "False") { this.HasLineNumber.IsChecked = false; }
                        }
                        else if (xmlReader.Name == "AddDefaultStylesWithinPreTags")
                        {
                            value = (string)xmlReader.ReadContentAs(Type.GetType("String"), null);
                            if (value == "True") { this.addDefaultStylesWithinPreTags.IsChecked = true; }
                            else if (value == "False") { this.addDefaultStylesWithinPreTags.IsChecked = false; }
                        }
                        else if (xmlReader.Name == "CssClassName")
                        {
                            value = (string)xmlReader.ReadContentAs(Type.GetType("String"), null);
                            this.cssClassName.Text = value;
                        }
                        else if (xmlReader.Name == "AddPreTag")
                        {
                            value = (string)xmlReader.ReadContentAs(Type.GetType("String"), null);
                            if (value == "True") { this.AddPreTag.IsChecked = true; }
                            else if (value == "False") { this.AddPreTag.IsChecked = false; }
                        }
                        else if (xmlReader.Name == "AddBGColor")
                        {
                            value = (string)xmlReader.ReadContentAs(Type.GetType("String"), null);
                            if (value == "True") { this.AddBGColor.IsChecked = true; }
                            else if (value == "False") { this.AddBGColor.IsChecked = false; }
                        }
                        else if (xmlReader.Name == "TextBoxColor")
                        {
                            value = (string)xmlReader.ReadContentAs(Type.GetType("String"), null);
                            this.TextBoxColor.Text = value;
                        }
                        break;
                    }
            }
        }
    }   
 

}

modified on Tuesday, April 14, 2009 12:08 AM

Mark Salsbery13-Apr-09 20:08

13-Apr-09 20:08

Is FileMode.Create really the mode you want to open the file in?

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Mohammad Dayyan13-Apr-09 21:53

13-Apr-09 21:53

Thanks Mark.
I've altered it to FileMode.Open , but the Exception has occurred again Frown | :(

Mohammad Dayyan13-Apr-09 22:34

13-Apr-09 22:34

I've done it :

using (IsolatedStorageFile isoStore = IsolatedStorageFile.GetUserStoreForApplication())
{
	   .
       .
       .
   
    string SettingFilePath = "CodeColorizer\\setting.xml";
    using (IsolatedStorageFileStream isoStream = new IsolatedStorageFileStream(SettingFilePath, FileMode.Open, isoStore))
	{
        isoStream.Position = 0;
        XmlReader xmlReader;
        xmlReader = XmlReader.Create(isoStream);
        Debug.WriteLine("\r\n" + isoStream);
        //Moves the reader to the root element.                        
        xmlReader.MoveToContent();
        string value;
        while (xmlReader.Read())
        {
            switch (xmlReader.NodeType)
            {
                case XmlNodeType.Element:
                    {
                        if (xmlReader.Name == "IsVB")
                        {
                            value = xmlReader.ReadElementContentAsString();
                            if (value == "True") { this.IsVB.IsChecked = true; this.IsCsharp.IsChecked = false; }
                            else if (value == "False") { this.IsVB.IsChecked = false; this.IsCsharp.IsChecked = true; }
                        }
                        else if (xmlReader.Name == "IsCsharp")
                        {
                            value = xmlReader.ReadElementContentAsString();
                            if (value == "True") { this.IsVB.IsChecked = false; this.IsCsharp.IsChecked = true; }
                            else if (value == "False") { this.IsVB.IsChecked = true; this.IsCsharp.IsChecked = false; }
                        }
                        else if (xmlReader.Name == "IsStriped")
                        {
                            value = xmlReader.ReadElementContentAsString();
                            if (value == "True") { this.IsStriped.IsChecked = true; }
                            else if (value == "False") { this.IsStriped.IsChecked = false; }
                        }
                        else if (xmlReader.Name == "HasLineNumber")
                        {
                            value = xmlReader.ReadElementContentAsString();
                            if (value == "True") { this.HasLineNumber.IsChecked = true; }
                            else if (value == "False") { this.HasLineNumber.IsChecked = false; }
                        }
                        else if (xmlReader.Name == "AddDefaultStylesWithinPreTags")
                        {
                            value = xmlReader.ReadElementContentAsString();
                            if (value == "True") { this.addDefaultStylesWithinPreTags.IsChecked = true; }
                            else if (value == "False") { this.addDefaultStylesWithinPreTags.IsChecked = false; }
                        }
                        else if (xmlReader.Name == "CssClassName")
                        {
                            value = xmlReader.ReadElementContentAsString();
                            this.cssClassName.Text = value;
                        }
                        else if (xmlReader.Name == "AddPreTag")
                        {
                            value = xmlReader.ReadElementContentAsString();
                            if (value == "True") { this.AddPreTag.IsChecked = true; }
                            else if (value == "False") { this.AddPreTag.IsChecked = false; }
                        }
                        else if (xmlReader.Name == "AddBGColor")
                        {
                            value = xmlReader.ReadElementContentAsString();
                            if (value == "True") { this.AddBGColor.IsChecked = true; }
                            else if (value == "False") { this.AddBGColor.IsChecked = false; }
                        }
                        else if (xmlReader.Name == "TextBoxColor")
                        {
                            value = xmlReader.ReadElementContentAsString();
                            this.TextBoxColor.Text = value;
                        }
                        break;
                    }
            }
        }
    }
}

Mark Salsbery14-Apr-09 6:24

14-Apr-09 6:24

Is it working now?

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Mohammad Dayyan14-Apr-09 10:56

XAML - TreeView with CheckBoxes

14-Apr-09 10:56

yeah

Jack Kril13-Apr-09 13:26

Jack Kril

13-Apr-09 13:26

I'm trying to create a TreeView that has CheckBoxes in a left justified column for each TreeViewItem. It should look like the Photoshop layers panel (http://www.sanbaldo.com/wordpress/wp-content/uploads/2006/08/photoshop.gif[^]).

I've been messing around with the templates for these objects, but haven't been successful. Does anyone know how to make this work?

Re: XAML - TreeView with CheckBoxes

Eslam Afifi13-Apr-09 13:59

Eslam Afifi

13-Apr-09 13:59

Maybe you find this useful, A WPF Problem Solved Two Very Different Ways - Using XAML Only - Using A Custom Control[^].

Eslam Afifi

Clipping To Rounded Corners

#realJSOP13-Apr-09 5:27

#realJSOP

13-Apr-09 5:27

I have the following code

<Border Margin="3,4,0,0" Height="205" VerticalAlignment="Top" BorderBrush="Black"
             BorderThickness="2" HorizontalAlignment="Left" Width="891" CornerRadius="8,8,8,8">
    <StackPanel Orientation="Horizontal" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" >
        <StackPanel.Clip>
            <RectangleGeometry Rect="0,0,891,205" RadiusX="8" RadiusY="8"></RectangleGeometry>
        </StackPanel.Clip>
        <Label Height="26" Name="label1" Width="205" HorizontalAlignment="Left" VerticalAlignment="Top"
                 HorizontalContentAlignment="Center" VerticalContentAlignment="Center" FontFamily="Arial" FontSize="14"
                 FontStyle="Italic" FontWeight="Bold" Content="Contacts" Background="Black" Foreground="LightSteelBlue"
                 ClipToBounds="True">
            <Label.LayoutTransform>
                <RotateTransform Angle="270" />
            </Label.LayoutTransform>
        </Label>
        <telerik:RadGridView  Name="gridviewContacts" AllowDrop="False" Height="203" VerticalAlignment="Top"
                 Margin="0,0,0,0" AutoGenerateColumns="False" FontFamily="Arial" ClipToBounds="False"
                 Width="863">
            <telerik:Theming.Theme>
                <telerik:VistaTheme />
            </telerik:Theming.Theme>
        </telerik:RadGridView>
    </StackPanel>
</Border>

Essentially, I have a Border that contains a horizontally oriented StackPanel that contains a Label and a Telerik RadGridView. I want to put rounded corners on the Border element, and clip all of the other elements within the Border to not render outside the rounded corners.

The code above contains my latest non-working attempt. I tried to use the ClipToBounds property, but that doesn't seem to do anything.

"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

Re: Clipping To Rounded Corners [modified]

Eslam Afifi13-Apr-09 7:42

Eslam Afifi

13-Apr-09 7:42

I found this, Clipping of child elements[^].

<local:ClippingBorder Margin="3,4,0,0" Height="205" VerticalAlignment="Top" BorderBrush="Black" BorderThickness="4" HorizontalAlignment="Left"
                      Width="891" CornerRadius="80">
    <StackPanel Orientation="Horizontal" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" >
        <Label Height="26" Name="label1" Width="205" HorizontalAlignment="Left" VerticalAlignment="Top"
               HorizontalContentAlignment="Center" VerticalContentAlignment="Center" FontFamily="Arial" FontSize="14"
               FontStyle="Italic" FontWeight="Bold" Content="Contacts" Background="Black" Foreground="LightSteelBlue">
            <Label.LayoutTransform>
                <RotateTransform Angle="270" />
            </Label.LayoutTransform>
        </Label>
        <Rectangle Fill="Blue" Width="1000" Height="500" Opacity="0.4" />
    </StackPanel>
</local:ClippingBorder>

Eslam Afifi

modified on Monday, April 13, 2009 2:12 PM

Re: Clipping To Rounded Corners

Mark Salsbery13-Apr-09 9:45

Re: Clipping To Rounded Corners

13-Apr-09 9:45

It tries to clip - just in a braindead way.

For example:

<Border Height="100" VerticalAlignment="Top" BorderBrush="Black"
         BorderThickness="2" HorizontalAlignment="Left" Width="300" CornerRadius="20">
    <StackPanel Orientation="Horizontal" Background="SteelBlue" >
        <StackPanel.Clip>
            <RectangleGeometry Rect="0,0,300,100" RadiusX="20" RadiusY="20" />
        </StackPanel.Clip>
        <Label Height="26" Name="label1" Width="100" HorizontalAlignment="Left" VerticalAlignment="Top"
             HorizontalContentAlignment="Center" VerticalContentAlignment="Center" FontFamily="Arial" FontSize="14"
             FontStyle="Italic" FontWeight="Bold" Content="Contacts" Background="Black" Foreground="LightSteelBlue" >
            <Label.LayoutTransform>
                <RotateTransform Angle="270" />
            </Label.LayoutTransform>
        </Label>
    </StackPanel>
</Border>

Monkeying with the radius values, sometimes it does ok, sometimes it doesn't.

No bueno.

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

sivaddrahcir20-Apr-09 8:31

sivaddrahcir

20-Apr-09 8:31

Here is a possible solution:
http://chriscavanagh.wordpress.com/2008/10/03/wpf-easy-rounded-corners-for-anything/[^]

Blog:
http://windowsclientdevelopment.spaces.live.com
FAQs:
http://windowspresentationfoundation.wikispaces.com
http://windowsmobile.wikispaces.com
http://vsto.wikispaces.com

OnRenderComplete like event for WPF controls

Pankaj Chamria13-Apr-09 1:38

Pankaj Chamria

13-Apr-09 1:38

Hi,
I want to do some processing after knowing that a control has finished rendering. In windows forms we usually had events like OnRenderComplete with all the controls. But in WPF I found events like Loaded, Initialized, OnLayoutUpdated etc.. which do not inform you that the control has actually finished rendering on the UI.

Is there a way to identify this?

Pankaj Chamria,
Software Developer.

Context menu in Datatemplate

mikla52111-Apr-09 5:39

11-Apr-09 5:39

Next problem....

Here's some code
<DataTemplate x:Key="TestDataListTemplate">
<Border Margin="5" BorderThickness="1" BorderBrush="Black" CornerRadius="4">
<Grid Margin="5,2">
<Grid.RowDefinitions>
<RowDefinition></RowDefinition>
<RowDefinition></RowDefinition>
</Grid.RowDefinitions>
<TextBlock Grid.Row="0" Text="{Binding Path=Usage}" Foreground="Black" FontWeight="Bold" FontFamily="Courier" FontSize="12"></TextBlock>
<TextBlock Grid.Row="1" FontFamily="Arial" Foreground="DarkBlue" Text="{Binding Path=Path, UpdateSourceTrigger=PropertyChanged}" FontSize="12"></TextBlock>
</Grid>
</Border>
</DataTemplate>
...which I use as a ListBoxItem.

If I want a context menu for each item like this, I manage to get the menu, editing the code to...
...<Grid Margin="5,2">
<Grid.ContextMenu>
<ContextMenu>
<MenuItem Header="Delete" />
</ContextMenu>
</Grid.ContextMenu>...

But how do I implement the click event???

Mark Salsbery11-Apr-09 7:42

Re: Context menu in Datatemplate [modified]

11-Apr-09 7:42

mikla521 wrote:
But how do I implement the click event???

Which click event?

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

mikla52111-Apr-09 19:54

11-Apr-09 19:54

Sorry....like this then...

<DataTemplate x:Key="TestDataListTemplate" >
...
<Grid Margin="5,2">
<Grid.ContextMenu>
<ContextMenu>
<MenuItem Header="Delete" Click="MenuItem_Click_DeleteProduct" />
</ContextMenu>
</Grid.ContextMenu>...

Error:ResourceDictionary root element requires a x:Class attribute...
If I add x:class="MyProgram.Window1" to <ResourceDictionary the i get this instead, among a few others...
Error: Partial declarations of MyProgram.Window1 must not specify different base classes....don't get it. Sigh | :sigh:

Well, it seems like I have more problems. The goal is to have ListBox with DataTemplate items, then I want a ContextMenu where I can choose to delete an item... Maybe I have to think in another way.

modified on Sunday, April 12, 2009 2:41 AM

Mark Salsbery13-Apr-09 8:47

13-Apr-09 8:47

Where is this DataTemplate resource located?

It looks like there's no problem with the template but there's a problem with where
the template an/or the click handler code is located...

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

mikla52113-Apr-09 21:11

13-Apr-09 21:11

I have created a separate file with my templates and style and use <ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="resourceDic.xaml"/>
</ResourceDictionary.MergedDictionaries>

Mark Salsbery14-Apr-09 7:00

14-Apr-09 7:00

You'll need an x:class set on your resource dictionary that references the
class containing the click handler.

For example:

<!-- Dictionary1.xaml -->

<ResourceDictionary 
    x:Class="WPFTester.DictionaryHandlerClass"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="clr-namespace:WPFTester">

    <DataTemplate x:Key="TestDataListTemplate" DataType="{x:Type local:Item}">
        <Border BorderBrush="SteelBlue" BorderThickness="4" >
            <Grid Background="LightSteelBlue" Height="20" >
                <Grid.ContextMenu>
                    <ContextMenu>
                        <MenuItem Header="Delete" Click="MenuItem_Click" />
                    </ContextMenu>
                </Grid.ContextMenu>
            </Grid>
        </Border>
    </DataTemplate>

</ResourceDictionary>

// DictionaryHandlerClass.cs

using System;
using System.Windows;

namespace WPFTester
{
    public partial class DictionaryHandlerClass
    {
        private void MenuItem_Click(object sender, RoutedEventArgs e)
        {
        }
    }
}

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

mikla52114-Apr-09 20:11

14-Apr-09 20:11

Ok, thanks Smile | :)

I tried that before but it doesn't seems like it's possible to use the startup Window1 class. Think I have to create a separate class behind my resource file and go from there...

Mark Salsbery14-Apr-09 20:23