-/**\r
- * Namespace: System.Web.UI.WebControls\r
- * Class: BaseDataList\r
- *\r
- * Author: Gaurav Vaish\r
- * Maintainer: gvaish@iitk.ac.in\r
- * Contact: <my_scripts2001@yahoo.com>, <gvaish@iitk.ac.in>\r
- * Implementation: yes\r
- * Status: 100%\r
- *\r
- * (C) Gaurav Vaish (2001)\r
- */\r
+//
+// System.Web.UI.WebControls.BaseDataList.cs
+//
+// Authors:
+// Gaurav Vaish (gvaish@iitk.ac.in)
+// Andreas Nahr (ClassDevelopment@A-SoftTech.com)
+//
+// (C) Gaurav Vaish (2001)
+// (C) 2003 Andreas Nahr
+//\r
\r
using System;\r
-using System.ComponentModel;\r
+using System.ComponentModel;
+using System.ComponentModel.Design;\r
using System.Collections;\r
using System.Web;\r
-using System.Web.UI;\r
+using System.Web.UI;
+using System.Web.Util;\r
\r
namespace System.Web.UI.WebControls\r
{\r
[DefaultEvent("SelectedIndexChanged")]\r
[DefaultProperty("DataSource")]\r
- [ParseChildren(true)]\r
- [PersistChildren(false)]\r
- //TODO: [Designer("??")]\r
+ [Designer("System.Web.UI.Design.WebControls.BaseDataListDesigner, " + Consts.AssemblySystem_Design, typeof (IDesigner))]\r
public abstract class BaseDataList: WebControl\r
{\r
private static readonly object SelectedIndexChangedEvent = new object();\r
}\r
\r
public override void DataBind()\r
- {\r
+ {
+ #if NET_2_0
+ RequiresDataBinding = false;
+ #endif\r
OnDataBinding(EventArgs.Empty);\r
}\r
\r
}\r
\r
[Browsable(true)]\r
- //[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]\r
+ [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]\r
[WebSysDescription("BaseDataList_DataKeys")]\r
public DataKeyCollection DataKeys\r
{\r
\r
[Bindable(true)]\r
[DefaultValue(null)]\r
- //[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]\r
+ [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]\r
[WebCategory("Data")]\r
[WebSysDescription("BaseDataList_DataSource")]\r
- public virtual object DataSource\r
- {\r
- get\r
- {\r
- return dataSource;\r
- }\r
- set\r
- {\r
- if( (value!=null) && (value is IListSource || value is IEnumerable) )\r
- {\r
- dataSource = value;\r
- } else\r
- {\r
- throw new ArgumentException(HttpRuntime.FormatResourceString("Invalid_DataSource_Type", ID));\r
- }\r
- }\r
- }\r
-\r
+ public virtual object DataSource {
+ get {
+ return dataSource;
+ }
+ set {
+ if (value == null || value is IListSource || value is IEnumerable) {
+ dataSource = value;
+ } else {
+ throw new ArgumentException (HttpRuntime.FormatResourceString (
+ "Invalid_DataSource_Type", ID));
+ }
+ }
+ }
+
[Bindable(true)]\r
[DefaultValue(GridLines.Both)]\r
[WebCategory("Appearance")]\r
{\r
((TableStyle)ControlStyle).GridLines = value;\r
}\r
- }\r
+ }
+
+ // LAMESPEC HorizontalAlign has a Category attribute, this should obviously be a WebCategory attribute
+ // but is defined incorrectly in the MS framework\r
\r
[Bindable(true)]\r
[DefaultValue(HorizontalAlign.NotSet)]\r
- [WebCategory("Layout")]\r
+ [Category("Layout")]\r
[WebSysDescription("BaseDataList_HorizontalAlign")]\r
public virtual HorizontalAlign HorizontalAlign\r
{\r
Controls.Clear();\r
if(ViewState[ItemCountViewStateKey]!=null)\r
{\r
- CreateControlHierarchy(true);\r
+ CreateControlHierarchy(false);\r
ClearChildViewState();\r
}\r
}\r
protected override void Render(HtmlTextWriter writer)\r
{\r
PrepareControlHierarchy();\r
- base.RenderContents(writer);\r
+ RenderContents(writer);\r
}\r
\r
protected abstract void PrepareControlHierarchy();\r
- protected abstract void CreateControlHierarchy(bool useDataSource);\r
+ protected abstract void CreateControlHierarchy(bool useDataSource);
+
+ #if NET_2_0
+
+
+ // should be `internal protected' (why, oh WHY did they do that !?!)
+ protected override void OnInit (EventArgs e)
+ {
+ base.OnInit(e);
+ inited = true;
+ if (!Page.IsPostBack)
+ RequiresDataBinding = true;
+ }
+
+ // should be `internal protected' (why, oh WHY did they do that !?!)
+ protected override void OnLoad (EventArgs e)
+ {
+ IDataSource ds = GetDataSourceObject () as IDataSource;
+ if (ds != null && DataSourceID != "")
+ ds.DataSourceChanged += new EventHandler (OnDataSourceChanged);
+
+ base.OnLoad(e);
+ }
+
+ // should be `internal protected' (why, oh WHY did they do that !?!)
+ protected override void OnPreRender (EventArgs e)
+ {
+ EnsureDataBound ();
+ base.OnPreRender (e);
+ }
+
+ protected void EnsureDataBound ()
+ {
+ if (RequiresDataBinding && DataSourceID != "")
+ DataBind ();
+ }
+
+ protected virtual object GetDataSourceObject ()
+ {
+ if (DataSourceID != "")
+ return (IDataSource) NamingContainer.FindControl (DataSourceID);
+
+ return DataSource;
+ }
+
+ protected virtual IEnumerable GetResolvedDataSource ()
+ {
+ if (DataSource != null && DataSourceID != "")
+ throw new HttpException ();
+
+ IDataSource ds = this.GetDataSourceObject () as IDataSource;
+ if (ds != null && DataSourceID != "")
+ return ds.GetView (DataMember).Select ();
+ else if (DataSource != null)
+ return DataSourceHelper.GetResolvedDataSource (DataSource, DataMember);
+ else
+ return null;
+ }
+
+ protected void OnDataSourceChanged (object sender, EventArgs e)
+ {
+ RequiresDataBinding = true;
+ }
+
+ public virtual string DataSourceID {
+ get {
+ object o = ViewState ["DataSourceID"];
+ if (o != null)
+ return (string)o;
+
+ return String.Empty;
+ }
+ set {
+ if (inited)
+ RequiresDataBinding = true;
+
+ ViewState ["DataSourceID"] = value;
+ }
+ }
+
+ bool requiresDataBinding;
+ protected bool RequiresDataBinding {
+ get { return requiresDataBinding; }
+ set { requiresDataBinding = value; }
+ }
+
+ protected bool inited;
+
+ #else
+ internal IEnumerable GetResolvedDataSource ()
+ {
+ if (DataSource != null)
+ return DataSourceHelper.GetResolvedDataSource (DataSource, DataMember);
+ else
+ return null;
+ }
+ #endif\r
}\r
}\r
projects / mono.git / blobdiff