'宣言 Public Class InitializePaneContentEventArgs Inherits System.Windows.RoutedEventArgs
public class InitializePaneContentEventArgs : System.Windows.RoutedEventArgs
Imports Infragistics.Windows.DockManager Imports Infragistics.Windows.DockManager.Events Private Sub InitializeDmWithSaveInLayout(ByVal dockManager As XamDockManager) ' hook the InitializePaneContent to dynamically provide the ' content for panes that are loaded at runtime. for example, ' if your application creates documents for files that the ' user opens you could let those panes be saved, store information ' in the SerializationId of the pane to know what to load and then ' load that information into the pane in the InitializePaneContent ' when you load a layout AddHandler dockManager.InitializePaneContent, AddressOf dockManager_InitializePaneContent End Sub Private Sub mnuOpen_Click(ByVal sender As Object, ByVal e As RoutedEventArgs) Dim file As String = Me.OpenFile() Dim rtb As RichTextBox = CreateRichTextBox(file, DataFormats.Rtf) If rtb IsNot Nothing Then Dim fileName As String = System.IO.Path.GetFileName(file) Dim cp As ContentPane = Me.dmSaveInLayout.AddDocument(fileName, rtb) ' in order for the pane to be saved we must give it a unique name ' since we won't be using the name we can just use a guid. we have ' to use the format string that does not include "-" since that ' is not valid for an element name. prefix with a letter since ' the name cannot start with a number cp.Name = "A" + Guid.NewGuid().ToString("N") ' store the path to the file. the SerializationId will be saved ' in the layout with the pane so we can use this information from ' within the InitializePaneContent to know what file to load ' when a layout containing this pane is loaded cp.SerializationId = file End If End Sub Private Sub dockManager_InitializePaneContent(ByVal sender As Object, ByVal e As InitializePaneContentEventArgs) Dim id As String = e.NewPane.SerializationId Dim rtb As RichTextBox = CreateRichTextBox(id, DataFormats.Rtf) ' if you set the Content of the NewPane to a non-null value then that ' pane will be kept in the newly loaded layout. if you do not set the ' content to a non-null value then the pane will be discarded e.NewPane.Content = rtb End Sub Private Function OpenFile() As String ' simple helper method for prompting for an rtf file ' you could show a file open dialog, etc. Dim dlg As New Microsoft.Win32.OpenFileDialog() dlg.DefaultExt = ".rtf" dlg.Filter = "RichText Files (*.rtf)|*.rtf" If dlg.ShowDialog(Me) = True Then Return dlg.FileName End If Return Nothing End Function ' simple helper method for creating a richtextbox with ' contents loaded from a specified file Private Shared Function CreateRichTextBox(ByVal fileName As String, ByVal format As String) As RichTextBox If System.IO.File.Exists(fileName) Then Dim rtb As New RichTextBox() Dim range As New TextRange(rtb.Document.ContentStart, rtb.Document.ContentEnd) Using stream As New System.IO.FileStream(fileName, System.IO.FileMode.Open) ' we're assuming that the serialization id you stored was the name of ' an rtf file range.Load(stream, DataFormats.Rtf) End Using Return rtb End If Return Nothing End Function
using Infragistics.Windows.DockManager; using Infragistics.Windows.DockManager.Events; private void InitializeDmWithSaveInLayout(XamDockManager dockManager) { // hook the InitializePaneContent to dynamically provide the // content for panes that are loaded at runtime. for example, // if your application creates documents for files that the // user opens you could let those panes be saved, store information // in the SerializationId of the pane to know what to load and then // load that information into the pane in the InitializePaneContent // when you load a layout dockManager.InitializePaneContent += new EventHandler<InitializePaneContentEventArgs>(dockManager_InitializePaneContent); } private void mnuOpen_Click(object sender, RoutedEventArgs e) { string file = this.OpenFile(); RichTextBox rtb = CreateRichTextBox(file, DataFormats.Rtf); if (null != rtb) { string fileName = System.IO.Path.GetFileName(file); ContentPane cp = this.dmSaveInLayout.AddDocument(fileName, rtb); // in order for the pane to be saved we must give it a unique name // since we won't be using the name we can just use a guid. we have // to use the format string that does not include "-" since that // is not valid for an element name. prefix with a letter since // the name cannot start with a number cp.Name = "A" + Guid.NewGuid().ToString("N"); // store the path to the file. the SerializationId will be saved // in the layout with the pane so we can use this information from // within the InitializePaneContent to know what file to load // when a layout containing this pane is loaded cp.SerializationId = file; } } private void dockManager_InitializePaneContent(object sender, InitializePaneContentEventArgs e) { string id = e.NewPane.SerializationId; RichTextBox rtb = CreateRichTextBox(id, DataFormats.Rtf); // if you set the Content of the NewPane to a non-null value then that // pane will be kept in the newly loaded layout. if you do not set the // content to a non-null value then the pane will be discarded e.NewPane.Content = rtb; } // simple helper method for prompting for an rtf file private string OpenFile() { // you could show a file open dialog, etc. Microsoft.Win32.OpenFileDialog dlg = new Microsoft.Win32.OpenFileDialog(); dlg.DefaultExt = ".rtf"; dlg.Filter = "RichText Files (*.rtf)|*.rtf"; if (dlg.ShowDialog(this) == true) return dlg.FileName; return null; } // simple helper method for creating a richtextbox with // contents loaded from a specified file private static RichTextBox CreateRichTextBox(string fileName, string format) { if (System.IO.File.Exists(fileName)) { RichTextBox rtb = new RichTextBox(); TextRange range = new TextRange(rtb.Document.ContentStart, rtb.Document.ContentEnd); using (System.IO.FileStream stream = new System.IO.FileStream(fileName, System.IO.FileMode.Open)) { // we're assuming that the serialization id you stored was the name of // an rtf file range.Load(stream, DataFormats.Rtf); } return rtb; } return null; }