Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / WebControls / TreeNodeBinding.cs / 1305376 / TreeNodeBinding.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls { using System; using System.ComponentModel; using System.Drawing.Design; using System.Web; ////// Provides a data mapping definition for a TreeView /// [DefaultProperty("TextField")] public sealed class TreeNodeBinding : IStateManager, ICloneable, IDataSourceViewSchemaAccessor { private bool _isTrackingViewState; private StateBag _viewState; ////// The data member to use in the mapping /// [ DefaultValue(""), WebCategory("Data"), WebSysDescription(SR.Binding_DataMember), ] public string DataMember { get { string s = (string)ViewState["DataMember"]; if (s == null) { return String.Empty; } else { return s; } } set { ViewState["DataMember"] = value; } } ////// The depth of the level for which this TreeNodeBinding is defining a data mapping /// [ DefaultValue(-1), TypeConverter("System.Web.UI.Design.WebControls.TreeNodeBindingDepthConverter, " + AssemblyRef.SystemDesign), WebCategory("Data"), WebSysDescription(SR.TreeNodeBinding_Depth), ] public int Depth { get { object o = ViewState["Depth"]; if (o == null) { return -1; } return (int)o; } set { ViewState["Depth"] = value; } } [DefaultValue("")] [Localizable(true)] [WebCategory("Databindings")] [WebSysDescription(SR.TreeNodeBinding_FormatString)] public string FormatString { get { string s = (string)ViewState["FormatString"]; if (s == null) { return String.Empty; } return s; } set { ViewState["FormatString"] = value; } } ////// Gets and sets the TreeNodeBinding ImageToolTip /// [DefaultValue("")] [Localizable(true)] [WebCategory("DefaultProperties")] [WebSysDescription(SR.TreeNodeBinding_ImageToolTip)] public string ImageToolTip { get { string s = (string)ViewState["ImageToolTip"]; if (s == null) { return String.Empty; } return s; } set { ViewState["ImageToolTip"] = value; } } ////// Get and sets the fieldname to use for the ImageToolTip property in a TreeNode /// [DefaultValue("")] [TypeConverter("System.Web.UI.Design.DataSourceViewSchemaConverter, " + AssemblyRef.SystemDesign), WebSysDescription(SR.TreeNodeBinding_ImageToolTipField)] [WebCategory("Databindings")] public string ImageToolTipField { get { string s = (string)ViewState["ImageToolTipField"]; if (s == null) { return String.Empty; } else { return s; } } set { ViewState["ImageToolTipField"] = value; } } ////// Gets and sets the image URl to be rendered for this node /// [DefaultValue("")] [Editor("System.Web.UI.Design.ImageUrlEditor, " + AssemblyRef.SystemDesign, typeof(UITypeEditor))] [UrlProperty()] [WebCategory("DefaultProperties")] [WebSysDescription(SR.TreeNodeBinding_ImageUrl)] public string ImageUrl { get { string s = (string)ViewState["ImageUrl"]; if (s == null) { return String.Empty; } return s; } set { ViewState["ImageUrl"] = value; } } ////// Get and sets the fieldname to use for the ImageUrl property in a TreeNode /// [ DefaultValue(""), TypeConverter("System.Web.UI.Design.DataSourceViewSchemaConverter, " + AssemblyRef.SystemDesign), WebCategory("Databindings"), WebSysDescription(SR.TreeNodeBinding_ImageUrlField), ] public string ImageUrlField { get { string s = (string)ViewState["ImageUrlField"]; if (s == null) { return String.Empty; } else { return s; } } set { ViewState["ImageUrlField"] = value; } } ////// Gets and sets the URL to navigate to when the node is clicked /// [DefaultValue("")] [Editor("System.Web.UI.Design.UrlEditor, " + AssemblyRef.SystemDesign, typeof(UITypeEditor))] [UrlProperty()] [WebCategory("DefaultProperties")] [WebSysDescription(SR.TreeNodeBinding_NavigateUrl)] public string NavigateUrl { get { string s = (string)ViewState["NavigateUrl"]; if (s == null) { return String.Empty; } return s; } set { ViewState["NavigateUrl"] = value; } } ////// Get and sets the fieldname to use for the NavigateUrl property in a TreeNode /// [ DefaultValue(""), TypeConverter("System.Web.UI.Design.DataSourceViewSchemaConverter, " + AssemblyRef.SystemDesign), WebCategory("Databindings"), WebSysDescription(SR.TreeNodeBinding_NavigateUrlField), ] public string NavigateUrlField { get { string s = (string)ViewState["NavigateUrlField"]; if (s == null) { return String.Empty; } else { return s; } } set { ViewState["NavigateUrlField"] = value; } } ////// Gets and sets whether to populate this binding immediately or on the next request for population /// [ DefaultValue(false), WebCategory("DefaultProperties"), WebSysDescription(SR.TreeNodeBinding_PopulateOnDemand), ] public bool PopulateOnDemand { get { object o = ViewState["PopulateOnDemand"]; if (o == null) { return false; } return (bool)o; } set { ViewState["PopulateOnDemand"] = value; } } ////// Gets and sets the action which the TreeNodeBinding will perform when selected /// [DefaultValue(TreeNodeSelectAction.Select)] [WebCategory("DefaultProperties")] [WebSysDescription(SR.TreeNodeBinding_SelectAction)] public TreeNodeSelectAction SelectAction { get { object o = ViewState["SelectAction"]; if (o == null) { return TreeNodeSelectAction.Select; } return (TreeNodeSelectAction)o; } set { ViewState["SelectAction"] = value; } } ////// Gets and sets whether the TreeNodeBinding has a CheckBox /// [DefaultValue(typeof(Nullable), "")] [WebCategory("DefaultProperties")] [WebSysDescription(SR.TreeNodeBinding_ShowCheckBox)] public bool? ShowCheckBox { get { object o = ViewState["ShowCheckBox"]; if (o == null) { return null; } return (bool?)o; } set { ViewState["ShowCheckBox"] = value; } } /// /// Gets and sets the target window that the TreeNodeBinding will browse to if selected /// [DefaultValue("")] [WebCategory("DefaultProperties")] [WebSysDescription(SR.TreeNodeBinding_Target)] public string Target { get { string s = (string)ViewState["Target"]; if (s == null) { return String.Empty; } return s; } set { ViewState["Target"] = value; } } [ DefaultValue(""), TypeConverter("System.Web.UI.Design.DataSourceViewSchemaConverter, " + AssemblyRef.SystemDesign), WebCategory("Databindings"), WebSysDescription(SR.TreeNodeBinding_TargetField), ] public string TargetField { get { string s = (string)ViewState["TargetField"]; if (s == null) { return String.Empty; } else { return s; } } set { ViewState["TargetField"] = value; } } ////// Gets and sets the display text /// [DefaultValue("")] [Localizable(true)] [WebCategory("DefaultProperties")] [WebSysDescription(SR.TreeNodeBinding_Text)] public string Text { get { string s = (string)ViewState["Text"]; if (s == null) { s = (string)ViewState["Value"]; if (s == null) { return String.Empty; } } return s; } set { ViewState["Text"] = value; } } ////// Get and sets the fieldname to use for the Text property in a TreeNode /// [ DefaultValue(""), TypeConverter("System.Web.UI.Design.DataSourceViewSchemaConverter, " + AssemblyRef.SystemDesign), WebCategory("Databindings"), WebSysDescription(SR.TreeNodeBinding_TextField), ] public string TextField { get { string s = (string)ViewState["TextField"]; if (s == null) { return String.Empty; } else { return s; } } set { ViewState["TextField"] = value; } } ////// Gets and sets the TreeNodeBinding tooltip /// [DefaultValue("")] [Localizable(true)] [WebCategory("DefaultProperties")] [WebSysDescription(SR.TreeNodeBinding_ToolTip)] public string ToolTip { get { string s = (string)ViewState["ToolTip"]; if (s == null) { return String.Empty; } return s; } set { ViewState["ToolTip"] = value; } } ////// Get and sets the fieldname to use for the ToolTip property in a TreeNode /// [ DefaultValue(""), TypeConverter("System.Web.UI.Design.DataSourceViewSchemaConverter, " + AssemblyRef.SystemDesign), WebCategory("Databindings"), WebSysDescription(SR.TreeNodeBinding_ToolTipField), ] public string ToolTipField { get { string s = (string)ViewState["ToolTipField"]; if (s == null) { return String.Empty; } else { return s; } } set { ViewState["ToolTipField"] = value; } } ////// Gets and sets the value /// [DefaultValue("")] [Localizable(true)] [WebCategory("DefaultProperties")] [WebSysDescription(SR.TreeNodeBinding_Value)] public string Value { get { string s = (string)ViewState["Value"]; if (s == null) { s = (string)ViewState["Text"]; if (s == null) { return String.Empty; } } return s; } set { ViewState["Value"] = value; } } ////// Get and sets the fieldname to use for the Value property in a TreeNode /// [ DefaultValue(""), TypeConverter("System.Web.UI.Design.DataSourceViewSchemaConverter, " + AssemblyRef.SystemDesign), WebCategory("Databindings"), WebSysDescription(SR.TreeNodeBinding_ValueField), ] public string ValueField { get { string s = (string)ViewState["ValueField"]; if (s == null) { return String.Empty; } else { return s; } } set { ViewState["ValueField"] = value; } } ////// The state for this TreeNodeBinding /// private StateBag ViewState { get { if (_viewState == null) { _viewState = new StateBag(); if (_isTrackingViewState) { ((IStateManager)_viewState).TrackViewState(); } } return _viewState; } } internal void SetDirty() { ViewState.SetDirty(true); } public override string ToString() { return (String.IsNullOrEmpty(DataMember) ? SR.GetString(SR.TreeNodeBinding_EmptyBindingText) : DataMember); } #region ICloneable implemention ////// /// Creates a clone of the TreeNodeBinding. /// object ICloneable.Clone() { TreeNodeBinding clone = new TreeNodeBinding(); clone.DataMember = DataMember; clone.Depth = Depth; clone.FormatString = FormatString; clone.ImageToolTip = ImageToolTip; clone.ImageToolTipField = ImageToolTipField; clone.ImageUrl = ImageUrl; clone.ImageUrlField = ImageUrlField; clone.NavigateUrl = NavigateUrl; clone.NavigateUrlField = NavigateUrlField; clone.PopulateOnDemand = PopulateOnDemand; clone.SelectAction = SelectAction; clone.ShowCheckBox = ShowCheckBox; clone.Target = Target; clone.TargetField = TargetField; clone.Text = Text; clone.TextField = TextField; clone.ToolTip = ToolTip; clone.ToolTipField = ToolTipField; clone.Value = Value; clone.ValueField = ValueField; return clone; } #endregion #region IStateManager implementation ///bool IStateManager.IsTrackingViewState { get { return _isTrackingViewState; } } /// void IStateManager.LoadViewState(object state) { if (state != null) { ((IStateManager)ViewState).LoadViewState(state); } } /// object IStateManager.SaveViewState() { if (_viewState != null) { return ((IStateManager)_viewState).SaveViewState(); } return null; } /// void IStateManager.TrackViewState() { _isTrackingViewState = true; if (_viewState != null) { ((IStateManager)_viewState).TrackViewState(); } } #endregion #region IDataSourceViewSchemaAccessor implementation /// object IDataSourceViewSchemaAccessor.DataSourceViewSchema { get { return ViewState["IDataSourceViewSchemaAccessor.DataSourceViewSchema"]; } set { ViewState["IDataSourceViewSchemaAccessor.DataSourceViewSchema"] = value; } } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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