Gary Gumbiner, MCT, MCPD, MCSD .NET

WPF & Datargidview Control

The Windows Forms DataGridView control may be hosted in a WPF form using a <WindowsFormsHost> tag
(in fact any Windows Forms Control may be hosted within this tag, which provides a solution to the lack of a WPF Data Grid control).

The following XAML and VB.Net code was done using Visual Studio 2005 .

In a WPF Windows application:

• add a reference to WindowsFormsIntegration (WindowsFormsIntegration.dll)
  

In a XAML file (i.e. Window1.xaml)

• add a reference to System.Windows.Forms:

• add the following XAML to host the DataGridView control

<StackPanel>

<WindowsFormsHost Width="200" Height="200">

<wf:DataGridView x:Name="dgv"> </wf:DataGridView>

</WindowsFormsHost>

</StackPanel>

Note: it appears that the <WindowsFormsHost> should have Width and Height attributes to ensure that the DataGridView will render with scrollbars

• Build the Project

In the associated code view for the XMAL(Windows.xaml.vb) :

• Add the following code to the Window1_Loaded event handler:

'Use the Authors table in the Pubs database

Dim conn As New System.Data.SqlClient.SqlConnection("integrated security=true;database=pubs")

Dim da As New System.Data.SqlClient.SqlDataAdapter("select * from employee", conn)

Dim ds As New System.Data.DataSetda.Fill(ds)
Me.dgv.DataSource = ds.Tables(0)

Me.dgv.DataMember = ds.Tables(0).TableName

Me.dgv.ScrollBars = System.Windows.Forms.ScrollBars.Both

Me.dgv.Visible = True

Run the program to display the WPF with the DataGridView.

Note that <WindowsFormsHost> may only contain one Windows Forms Control. Use multiple <WindowsFormsHost> tags or create a Windows Forms User Control with the desired layout and host in using in <WindowsFormsHost>. Also, the DataGridView will not render with any WPF styles that may have defined.

posted by Gary Gumbiner, MCT, MCPD, MCSD .NET @ 12:36 PM 2 comments

Flow Documents and Code Behind

It is possible to have XAML controls with event handlers in a Flow Document. This can be accomplished using Visual studio 2005 by:

• Add a FlowDocument (WPF) to a Visual Studio 2005 .NET 3.0 WPF project (i.e. FlowDocument2.xaml)
• Add a class to the project named FlowDocument2.xaml.vb (VS 2005 does not automatically add an associated "code-behind" class)
• In FlowDocument2.xaml in the <FlowDocument> element add the attribute: <FlowDocument a:Class="FlowDocument2" ....
• Within a <Paragraph> element add:
  Test Text<InlineUIContainer><Button Name="TestCmd" Content="Press Me"></Button></InlineUIContainer>Test Text
• Build the project
• In the Code-behind class (FlowDocument2.xaml.vb) for TestCmd (the button) add a click event
• In the click event place some code (i.e. MessageBox.Show("clicked")
• Make FlowDocument2.xaml the startup URI for the project
• Run the project (F5 or <Shift>F5

Labels: ted

posted by Gary Gumbiner, MCT, MCPD, MCSD .NET @ 8:57 PM 1 comments

XAML & Flow Documents

For WPF projects in Visual Studio 2005 you can have the project display a Flow Document when starting.

In the App.Xaml file, for the < Application> element add the following attribute:

StartupUri="FlowDocument1.xaml"

With this approach it is easy to see what the associated flow document looks like. Just run the project using F5 (Start Debugging) or <Shift> F5 (Start Without Debugging).

Note that Flow Documents cannot be viewed in design mode within Visual Studio 2005, so this technique provides an easy way to see the actual formatting of a Flow Document.

posted by Gary Gumbiner, MCT, MCPD, MCSD .NET @ 8:43 PM 0 comments