Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Designer / WebForms / System / Web / UI / Design / WebControls / TreeViewBindingsEditorForm.cs / 1 / TreeViewBindingsEditorForm.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.Web.UI.Design.WebControls {
using System;
using System.Collections;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Design;
using System.Diagnostics;
using System.Drawing;
using System.Drawing.Design;
using System.Globalization;
using System.Web.UI.Design;
using System.Web.UI.Design.Util;
using System.Windows.Forms;
using TreeNodeBinding = System.Web.UI.WebControls.TreeNodeBinding;
using WebTreeNodeCollection = System.Web.UI.WebControls.TreeNodeCollection;
using WebTreeView = System.Web.UI.WebControls.TreeView;
internal class TreeViewBindingsEditorForm : DesignerForm {
private Label _schemaLabel;
private Label _bindingsLabel;
private ListBox _bindingsListView;
private Button _addBindingButton;
private Label _propertiesLabel;
private Button _cancelButton;
private Button _okButton;
private Button _applyButton;
private PropertyGrid _propertyGrid;
private TreeView _schemaTreeView;
private Button _moveBindingUpButton;
private Button _deleteBindingButton;
private CheckBox _autogenerateBindingsCheckBox;
private Button _moveBindingDownButton;
private Container components = null;
private WebTreeView _treeView;
private IDataSourceSchema _schema;
private bool _autoBindInitialized;
public TreeViewBindingsEditorForm(IServiceProvider serviceProvider, WebTreeView treeView, TreeViewDesigner treeViewDesigner) : base(serviceProvider) {
_treeView = treeView;
_autoBindInitialized = false;
InitializeComponent();
InitializeUI();
foreach (TreeNodeBinding binding in _treeView.DataBindings) {
TreeNodeBinding newItem = (TreeNodeBinding)((ICloneable)binding).Clone();
treeViewDesigner.RegisterClone(binding, newItem);
_bindingsListView.Items.Add(newItem);
}
}
private IDataSourceSchema Schema {
get {
if (_schema == null) {
IDesignerHost host = (IDesignerHost)ServiceProvider.GetService(typeof(IDesignerHost));
if (host != null) {
HierarchicalDataBoundControlDesigner hierarchicalDataBoundControlDesigner = host.GetDesigner(_treeView) as HierarchicalDataBoundControlDesigner;
if (hierarchicalDataBoundControlDesigner != null) {
DesignerHierarchicalDataSourceView view = hierarchicalDataBoundControlDesigner.DesignerView;
if (view != null) {
try {
_schema = view.Schema;
}
catch (Exception ex) {
IComponentDesignerDebugService debugService = (IComponentDesignerDebugService)ServiceProvider.GetService(typeof(IComponentDesignerDebugService));
if (debugService != null) {
debugService.Fail(SR.GetString(SR.DataSource_DebugService_FailedCall, "DesignerHierarchicalDataSourceView.Schema", ex.Message));
}
}
}
}
}
}
return _schema;
}
}
private void AddBinding() {
TreeNode selectedNode = _schemaTreeView.SelectedNode;
if (selectedNode != null) {
TreeNodeBinding newBinding = new TreeNodeBinding();
if (selectedNode.Text != _schemaTreeView.Nodes[0].Text) {
// Create a new binding based off the schema
newBinding.DataMember = selectedNode.Text;
if (((SchemaTreeNode)selectedNode).Duplicate) {
newBinding.Depth = selectedNode.FullPath.Split(_schemaTreeView.PathSeparator[0]).Length - 1;
}
((IDataSourceViewSchemaAccessor)newBinding).DataSourceViewSchema = ((SchemaTreeNode)selectedNode).Schema;
// Make sure it doesn't already exist in the list
int index = _bindingsListView.Items.IndexOf(newBinding);
if (index == -1) {
_bindingsListView.Items.Add(newBinding);
_bindingsListView.SetSelected(_bindingsListView.Items.Count - 1, true);
}
else {
newBinding = (TreeNodeBinding)_bindingsListView.Items[index];
_bindingsListView.SetSelected(index, true);
}
}
else {
// Add a new empty binding
_bindingsListView.Items.Add(newBinding);
_bindingsListView.SetSelected(_bindingsListView.Items.Count - 1, true);
}
// Select the binding in the property grid
_propertyGrid.SelectedObject = newBinding;
_propertyGrid.Refresh();
UpdateEnabledStates();
}
_bindingsListView.Focus();
}
private void ApplyBindings() {
ControlDesigner.InvokeTransactedChange(_treeView, new TransactedChangeCallback(ApplyBindingsChangeCallback), null, SR.GetString(SR.TreeViewDesigner_EditBindingsTransactionDescription));
}
private bool ApplyBindingsChangeCallback(object context) {
_treeView.DataBindings.Clear();
foreach (TreeNodeBinding item in _bindingsListView.Items) {
_treeView.DataBindings.Add(item);
}
// _treeView.AutoGenerateDataBindings = _autogenerateBindingsCheckBox.Checked;
PropertyDescriptor propDesc = TypeDescriptor.GetProperties(_treeView)["AutoGenerateDataBindings"];
propDesc.SetValue(_treeView, _autogenerateBindingsCheckBox.Checked);
return true;
}
protected override void Dispose( bool disposing ) {
if( disposing ) {
if(components != null) {
components.Dispose();
}
}
base.Dispose( disposing );
}
private IDataSourceViewSchema FindViewSchema(string viewName, int level) {
return FindViewSchemaRecursive(Schema, 0, viewName, level, null);
}
internal static IDataSourceViewSchema FindViewSchemaRecursive(
object schema,
int depth,
string viewName,
int level,
IDataSourceViewSchema bestBet) {
if ((schema is IDataSourceSchema) || (schema is IDataSourceViewSchema)) {
IDataSourceViewSchema idsvsSchema = schema as IDataSourceViewSchema;
IDataSourceViewSchema[] children = (idsvsSchema != null) ?
idsvsSchema.GetChildren() :
((IDataSourceSchema)schema).GetViews();
if (children != null) {
if (depth == level) {
// Same logic as in TreeNodeBindingsCollection, except that it's recursive.
// In runtime bindings collections, the bindings are a flat collection.
// Here, we need to explore a tree for the best binding, but the choice criteria are equivalent.
foreach (IDataSourceViewSchema viewSchema in children) {
if (String.Equals(viewSchema.Name, viewName, StringComparison.OrdinalIgnoreCase)) {
// This is a perfect match
return viewSchema;
}
else if (String.IsNullOrEmpty(viewSchema.Name) && (bestBet == null)) {
// This is a partial match. If we already had one, it could not be worse than this
// one, but it could be better, hence the test on bestBet == null.
bestBet = viewSchema;
}
// Recursively get the best bet from children. Children will return the best bet they
// were passed unless they found a better one.
bestBet = FindViewSchemaRecursive(viewSchema, depth + 1, viewName, level, bestBet);
}
}
else {
foreach (IDataSourceViewSchema viewSchema in children) {
if ((level == -1) &&
String.Equals(viewSchema.Name, viewName, StringComparison.OrdinalIgnoreCase) &&
(bestBet == null)) {
// This is a partial match. If we already had one, it could not be worse than this
// one, but it could be better, hence the test on bestBet == null.
return viewSchema;
}
// Recursively get the best bet from children. Children will return the best bet they
// were passed unless they found a better one.
bestBet = FindViewSchemaRecursive(viewSchema, depth + 1, viewName, level, bestBet);
}
}
}
return bestBet;
}
return null;
}
protected override string HelpTopic {
get {
return "net.Asp.TreeView.BindingsEditorForm";
}
}
private void InitializeComponent() {
this._schemaLabel = new Label();
this._bindingsLabel = new Label();
this._bindingsListView = new ListBox();
this._addBindingButton = new Button();
this._propertiesLabel = new Label();
this._cancelButton = new Button();
this._propertyGrid = new System.Windows.Forms.Design.VsPropertyGrid(ServiceProvider);
this._schemaTreeView = new TreeView();
this._moveBindingUpButton = new Button();
this._moveBindingDownButton = new Button();
this._deleteBindingButton = new Button();
this._autogenerateBindingsCheckBox = new CheckBox();
this._okButton = new Button();
this._applyButton = new Button();
this.SuspendLayout();
//
// _schemaLabel
//
this._schemaLabel.Anchor = AnchorStyles.Left | AnchorStyles.Top | AnchorStyles.Right;
this._schemaLabel.Location = new Point(12, 12);
this._schemaLabel.Name = "_schemaLabel";
this._schemaLabel.Size = new Size(196, 14);
this._schemaLabel.TabIndex = 10;
//
//
// _bindingsLabel
//
this._bindingsLabel.Anchor = AnchorStyles.Left | AnchorStyles.Bottom | AnchorStyles.Right;
this._bindingsLabel.Location = new Point(12, 186);
this._bindingsLabel.Name = "_bindingsLabel";
this._bindingsLabel.Size = new Size(196, 14);
this._bindingsLabel.TabIndex = 25;
//
// _bindingsListView
//
this._bindingsListView.Anchor = AnchorStyles.Right | AnchorStyles.Bottom | AnchorStyles.Left;
this._bindingsListView.Location = new Point(12, 202);
this._bindingsListView.Name = "_bindingsListView";
this._bindingsListView.Size = new Size(164, 112);
this._bindingsListView.TabIndex = 30;
this._bindingsListView.SelectedIndexChanged += new EventHandler(this.OnBindingsListViewSelectedIndexChanged);
this._bindingsListView.GotFocus += new EventHandler(OnBindingsListViewGotFocus);
//
// _addBindingButton
//
this._addBindingButton.Anchor = AnchorStyles.Right | AnchorStyles.Bottom;
this._addBindingButton.FlatStyle = FlatStyle.System;
this._addBindingButton.Location = new Point(133, 154);
this._addBindingButton.Name = "_addBindingButton";
this._addBindingButton.Size = new Size(75, 23);
this._addBindingButton.TabIndex = 20;
this._addBindingButton.Click += new EventHandler(this.OnAddBindingButtonClick);
//
// _propertiesLabel
//
this._propertiesLabel.Anchor = AnchorStyles.Right | AnchorStyles.Top;
this._propertiesLabel.Location = new Point(229, 12);
this._propertiesLabel.Name = "_propertiesLabel";
this._propertiesLabel.Size = new Size(266, 14);
this._propertiesLabel.TabIndex = 50;
//
// _cancelButton
//
this._cancelButton.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
this._cancelButton.FlatStyle = FlatStyle.System;
this._cancelButton.Location = new Point(340, 346);
this._cancelButton.Name = "_cancelButton";
this._cancelButton.TabIndex = 65;
this._cancelButton.Click += new EventHandler(this.OnCancelButtonClick);
//
// _okButton
//
this._okButton.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
this._okButton.FlatStyle = FlatStyle.System;
this._okButton.Location = new Point(260, 346);
this._okButton.Name = "_okButton";
this._okButton.TabIndex = 60;
this._okButton.Click += new EventHandler(this.OnOKButtonClick);
//
// _applyButton
//
this._applyButton.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
this._applyButton.FlatStyle = FlatStyle.System;
this._applyButton.Location = new Point(420, 346);
this._applyButton.Name = "_applyButton";
this._applyButton.TabIndex = 60;
this._applyButton.Click += new EventHandler(this.OnApplyButtonClick);
this._applyButton.Enabled = false;
//
// _propertyGrid
//
this._propertyGrid.Anchor = AnchorStyles.Right | AnchorStyles.Top | AnchorStyles.Bottom;
this._propertyGrid.CommandsVisibleIfAvailable = true;
this._propertyGrid.Cursor = Cursors.HSplit;
this._propertyGrid.LargeButtons = false;
this._propertyGrid.LineColor = SystemColors.ScrollBar;
this._propertyGrid.Location = new Point(229, 28);
this._propertyGrid.Name = "_propertyGrid";
this._propertyGrid.Size = new Size(266, 309);
this._propertyGrid.TabIndex = 55;
this._propertyGrid.Text = SR.GetString(SR.MenuItemCollectionEditor_PropertyGrid);
this._propertyGrid.ToolbarVisible = true;
this._propertyGrid.ViewBackColor = SystemColors.Window;
this._propertyGrid.ViewForeColor = SystemColors.WindowText;
this._propertyGrid.PropertyValueChanged += new PropertyValueChangedEventHandler(this.OnPropertyGridPropertyValueChanged);
this._propertyGrid.Site = _treeView.Site;
//
// _schemaTreeView
//
this._schemaTreeView.Anchor = AnchorStyles.Left | AnchorStyles.Top | AnchorStyles.Right | AnchorStyles.Bottom;
this._schemaTreeView.HideSelection = false;
this._schemaTreeView.ImageIndex = -1;
this._schemaTreeView.Location = new Point(12, 28);
this._schemaTreeView.Name = "_schemaTreeView";
this._schemaTreeView.SelectedImageIndex = -1;
this._schemaTreeView.Size = new Size(196, 120);
this._schemaTreeView.TabIndex = 15;
this._schemaTreeView.AfterSelect += new TreeViewEventHandler(this.OnSchemaTreeViewAfterSelect);
this._schemaTreeView.GotFocus += new EventHandler(this.OnSchemaTreeViewGotFocus);
//
// _moveBindingUpButton
//
this._moveBindingUpButton.Anchor = AnchorStyles.Right | AnchorStyles.Bottom;
this._moveBindingUpButton.Location = new Point(182, 202);
this._moveBindingUpButton.Name = "_moveBindingUpButton";
this._moveBindingUpButton.Size = new Size(26, 23);
this._moveBindingUpButton.TabIndex = 35;
this._moveBindingUpButton.Click += new EventHandler(this.OnMoveBindingUpButtonClick);
//
// _moveBindingDownButton
//
this._moveBindingDownButton.Anchor = AnchorStyles.Right | AnchorStyles.Bottom;
this._moveBindingDownButton.Location = new Point(182, 226);
this._moveBindingDownButton.Name = "_moveBindingDownButton";
this._moveBindingDownButton.Size = new Size(26, 23);
this._moveBindingDownButton.TabIndex = 40;
this._moveBindingDownButton.Click += new EventHandler(this.OnMoveBindingDownButtonClick);
//
// _deleteBindingButton
//
this._deleteBindingButton.Anchor = AnchorStyles.Right | AnchorStyles.Bottom;
this._deleteBindingButton.Location = new Point(182, 255);
this._deleteBindingButton.Name = "_deleteBindingButton";
this._deleteBindingButton.Size = new Size(26, 23);
this._deleteBindingButton.TabIndex = 45;
this._deleteBindingButton.Click += new EventHandler(this.OnDeleteBindingButtonClick);
//
// _autogenerateBindingsCheckBox
//
this._autogenerateBindingsCheckBox.Anchor = AnchorStyles.Bottom | AnchorStyles.Left;
this._autogenerateBindingsCheckBox.Location = new Point(12, 320);
this._autogenerateBindingsCheckBox.Name = "_autogenerateBindingsCheckBox";
this._autogenerateBindingsCheckBox.Size = new Size(196, 18);
this._autogenerateBindingsCheckBox.TabIndex = 5;
this._autogenerateBindingsCheckBox.Text = SR.GetString(SR.TreeViewBindingsEditor_AutoGenerateBindings);
this._autogenerateBindingsCheckBox.CheckedChanged += new EventHandler(this.OnAutoGenerateChanged);
this._autoBindInitialized = false;
//
// TreeViewBindingsEditor
//
this.AcceptButton = _okButton;
this.CancelButton = _cancelButton;
this.ClientSize = new Size(507, 381);
this.Controls.AddRange(new Control[] {
_autogenerateBindingsCheckBox,
_deleteBindingButton,
_moveBindingDownButton,
_moveBindingUpButton,
_okButton,
_cancelButton,
_applyButton,
_propertiesLabel,
_addBindingButton,
_bindingsListView,
_bindingsLabel,
_schemaTreeView,
_schemaLabel,
_propertyGrid});
this.MinimumSize = new Size(507, 381);
this.Name = "TreeViewBindingsEditor";
this.FormBorderStyle = FormBorderStyle.FixedDialog;
this.SizeGripStyle = SizeGripStyle.Hide;
InitializeForm();
this.ResumeLayout(false);
}
///
/// Called after InitializeComponent to perform additional actions that
/// are not supported by the designer.
///
private void InitializeUI() {
_bindingsLabel.Text = SR.GetString(SR.TreeViewBindingsEditor_Bindings);
_schemaLabel.Text = SR.GetString(SR.TreeViewBindingsEditor_Schema);
_okButton.Text = SR.GetString(SR.TreeViewBindingsEditor_OK);
_applyButton.Text = SR.GetString(SR.TreeViewBindingsEditor_Apply);
_cancelButton.Text = SR.GetString(SR.TreeViewBindingsEditor_Cancel);
_propertiesLabel.Text = SR.GetString(SR.TreeViewBindingsEditor_BindingProperties);
_autogenerateBindingsCheckBox.Text = SR.GetString(SR.TreeViewBindingsEditor_AutoGenerateBindings);
_addBindingButton.Text = SR.GetString(SR.TreeViewBindingsEditor_AddBinding);
Text = SR.GetString(SR.TreeViewBindingsEditor_Title);
Bitmap moveUpBitmap = new Icon(typeof(TreeViewBindingsEditor), "SortUp.ico").ToBitmap();
moveUpBitmap.MakeTransparent();
_moveBindingUpButton.Image = moveUpBitmap;
_moveBindingUpButton.AccessibleName = SR.GetString(SR.TreeViewBindingsEditor_MoveBindingUpName);
_moveBindingUpButton.AccessibleDescription = SR.GetString(SR.TreeViewBindingsEditor_MoveBindingUpDescription);
Bitmap moveDownBitmap = new Icon(typeof(TreeViewBindingsEditor), "SortDown.ico").ToBitmap();
moveDownBitmap.MakeTransparent();
_moveBindingDownButton.Image = moveDownBitmap;
_moveBindingDownButton.AccessibleName = SR.GetString(SR.TreeViewBindingsEditor_MoveBindingDownName);
_moveBindingDownButton.AccessibleDescription = SR.GetString(SR.TreeViewBindingsEditor_MoveBindingDownDescription);
Bitmap deleteBitmap = new Icon(typeof(TreeViewBindingsEditor), "Delete.ico").ToBitmap();
deleteBitmap.MakeTransparent();
_deleteBindingButton.Image = deleteBitmap;
_deleteBindingButton.AccessibleName = SR.GetString(SR.TreeViewBindingsEditor_DeleteBindingName);
_deleteBindingButton.AccessibleDescription = SR.GetString(SR.TreeViewBindingsEditor_DeleteBindingDescription);
Icon = null;
}
private void OnApplyButtonClick(object sender, EventArgs e) {
ApplyBindings();
_applyButton.Enabled = false;
}
private void OnAddBindingButtonClick(object sender, EventArgs e) {
_applyButton.Enabled = true;
AddBinding();
}
private void OnAutoGenerateChanged(object sender, EventArgs e) {
if (_autoBindInitialized) {
_applyButton.Enabled = true;
}
}
private void OnBindingsListViewGotFocus(object sender, EventArgs e) {
UpdateSelectedBinding();
}
private void OnBindingsListViewSelectedIndexChanged(object sender, EventArgs e) {
UpdateSelectedBinding();
}
private void OnCancelButtonClick(object sender, EventArgs e) {
DialogResult = DialogResult.Cancel;
Close();
}
private void OnDeleteBindingButtonClick(object sender, EventArgs e) {
if (_bindingsListView.SelectedIndices.Count > 0) {
_applyButton.Enabled = true;
int index = _bindingsListView.SelectedIndices[0];
_bindingsListView.Items.RemoveAt(index);
if (index >= _bindingsListView.Items.Count) {
index--;
}
if ((index >= 0) && (_bindingsListView.Items.Count > 0)) {
_bindingsListView.SetSelected(index, true);
}
}
}
protected override void OnInitialActivated(EventArgs e) {
base.OnInitialActivated(e);
TreeNode emptyNode = this._schemaTreeView.Nodes.Add(SR.GetString(SR.TreeViewBindingsEditor_EmptyBindingText));
if (Schema != null) {
PopulateSchema(Schema);
_schemaTreeView.ExpandAll();
}
_schemaTreeView.SelectedNode = emptyNode;
_autoBindInitialized = false;
_autogenerateBindingsCheckBox.Checked = _treeView.AutoGenerateDataBindings;
_autoBindInitialized = true;
UpdateEnabledStates();
}
private void OnMoveBindingUpButtonClick(object sender, EventArgs e) {
if (_bindingsListView.SelectedIndices.Count > 0) {
_applyButton.Enabled = true;
int index = _bindingsListView.SelectedIndices[0];
if (index > 0) {
TreeNodeBinding tempItem = (TreeNodeBinding)_bindingsListView.Items[index];
_bindingsListView.Items.RemoveAt(index);
_bindingsListView.Items.Insert(index - 1, tempItem);
_bindingsListView.SetSelected(index - 1, true);
}
}
}
private void OnMoveBindingDownButtonClick(object sender, EventArgs e) {
if (_bindingsListView.SelectedIndices.Count > 0) {
_applyButton.Enabled = true;
int index = _bindingsListView.SelectedIndices[0];
if (index + 1 < _bindingsListView.Items.Count) {
TreeNodeBinding tempItem = (TreeNodeBinding)_bindingsListView.Items[index];
_bindingsListView.Items.RemoveAt(index);
_bindingsListView.Items.Insert(index + 1, tempItem);
_bindingsListView.SetSelected(index + 1, true);
}
}
}
private void OnOKButtonClick(object sender, EventArgs e) {
ApplyBindings();
DialogResult = DialogResult.OK;
Close();
}
private void OnPropertyGridPropertyValueChanged(object s, PropertyValueChangedEventArgs e) {
_applyButton.Enabled = true;
if (e.ChangedItem.PropertyDescriptor.Name == "DataMember") {
string newValue = (string)e.ChangedItem.Value;
TreeNodeBinding newBinding = (TreeNodeBinding)_bindingsListView.Items[_bindingsListView.SelectedIndex];
// Force the listbox to refresh the item text (VSWhidbey 393250)
_bindingsListView.Items[_bindingsListView.SelectedIndex] = newBinding;
_bindingsListView.Refresh();
// Repopulate the bindings (VSWhidbey 480074)
IDataSourceViewSchema viewSchema = FindViewSchema(newValue, newBinding.Depth);
if (viewSchema != null) {
((IDataSourceViewSchemaAccessor)newBinding).DataSourceViewSchema = viewSchema;
}
_propertyGrid.SelectedObject = newBinding;
_propertyGrid.Refresh();
}
else if (e.ChangedItem.PropertyDescriptor.Name == "Depth") {
int newValue = (int)e.ChangedItem.Value;
TreeNodeBinding newBinding = (TreeNodeBinding)_bindingsListView.Items[_bindingsListView.SelectedIndex];
// Repopulate the bindings (VSWhidbey 480074)
IDataSourceViewSchema viewSchema = FindViewSchema(newBinding.DataMember, newValue);
if (viewSchema != null) {
((IDataSourceViewSchemaAccessor)newBinding).DataSourceViewSchema = viewSchema;
}
_propertyGrid.SelectedObject = newBinding;
_propertyGrid.Refresh();
}
}
private void OnSchemaTreeViewAfterSelect(object sender, TreeViewEventArgs e) {
UpdateEnabledStates();
}
private void OnSchemaTreeViewGotFocus(object sender, EventArgs e) {
_propertyGrid.SelectedObject = null;
}
private void PopulateSchema(IDataSourceSchema schema) {
if (schema == null) {
return;
}
IDictionary duplicates = new Hashtable();
IDataSourceViewSchema[] views = schema.GetViews();
if (views != null) {
for (int i = 0; i < views.Length; i++) {
PopulateSchemaRecursive(_schemaTreeView.Nodes, views[i], 0, duplicates);
}
}
}
private void PopulateSchemaRecursive(TreeNodeCollection nodes, IDataSourceViewSchema viewSchema, int depth, IDictionary duplicates) {
if (viewSchema == null) {
return;
}
SchemaTreeNode childNode = new SchemaTreeNode(viewSchema);
nodes.Add(childNode);
SchemaTreeNode duplicateNode = (SchemaTreeNode)duplicates[viewSchema.Name];
if (duplicateNode != null) {
duplicateNode.Duplicate = true;
childNode.Duplicate = true;
}
// Associate schema with the existing bindings
foreach (TreeNodeBinding item in _bindingsListView.Items) {
if (String.Compare(item.DataMember, viewSchema.Name, StringComparison.OrdinalIgnoreCase) == 0) {
IDataSourceViewSchemaAccessor accessor = (IDataSourceViewSchemaAccessor)item;
if ((depth == item.Depth) || (accessor.DataSourceViewSchema == null)) {
accessor.DataSourceViewSchema = viewSchema;
}
}
}
IDataSourceViewSchema[] children = viewSchema.GetChildren();
if (children != null) {
for (int i = 0; i < children.Length; i++) {
PopulateSchemaRecursive(childNode.Nodes, children[i], depth + 1, duplicates);
}
}
}
private void UpdateEnabledStates() {
if (_bindingsListView.SelectedIndices.Count > 0) {
int index = _bindingsListView.SelectedIndices[0];
_moveBindingDownButton.Enabled = (index + 1 < _bindingsListView.Items.Count);
_moveBindingUpButton.Enabled = (index > 0);
_deleteBindingButton.Enabled = true;
}
else {
_moveBindingDownButton.Enabled = false;
_moveBindingUpButton.Enabled = false;
_deleteBindingButton.Enabled = false;
}
_addBindingButton.Enabled = (_schemaTreeView.SelectedNode != null);
}
private void UpdateSelectedBinding() {
// Get the new selected binding from the list view (null if there isn't one)
TreeNodeBinding newBinding = null;
if (_bindingsListView.SelectedItems.Count > 0) {
TreeNodeBinding selectedItem = ((TreeNodeBinding)_bindingsListView.SelectedItems[0]);
newBinding = selectedItem;
}
// Select it in the property grid
_propertyGrid.SelectedObject = newBinding;
_propertyGrid.Refresh();
UpdateEnabledStates();
}
private class SchemaTreeNode : TreeNode {
private IDataSourceViewSchema _schema;
private bool _duplicate;
public SchemaTreeNode(IDataSourceViewSchema schema) : base (schema.Name) {
_schema = schema;
}
public bool Duplicate {
get {
return _duplicate;
}
set {
_duplicate = value;
}
}
public object Schema {
get {
return _schema;
}
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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- TranslateTransform.cs
- ConfigurationSectionGroupCollection.cs
- ParallelTimeline.cs
- DelegatedStream.cs
- DataGridCommandEventArgs.cs
- PartialList.cs
- ProviderBase.cs
- BrowserDefinition.cs
- ValidateNames.cs
- SqlXmlStorage.cs
- InputEventArgs.cs
- SemaphoreFullException.cs