修改列表控件清空

HZH_Controls/HZH_Controls/Controls/List/UCListView.cs

@@ -125,7 +125,11 @@ namespace HZH_Controls.Controls
             set
             {
                 if (value == null)
+                {
+                    m_dataSource = value;
+                    ReloadSource();
                     return;
+                }
                 if (!typeof(IList).IsAssignableFrom(value.GetType()))
                 {
                     throw new Exception("数据源不是有效的数据类型，列表");
@@ -233,9 +237,12 @@ namespace HZH_Controls.Controls
         /// </summary>
         public void ReloadSource()
         {
+            try
+            {
                 if (DesignMode)
                     return;
                 ControlHelper.FreezeControl(this, true);
+
                 if (this.panMain.Controls.Count <= 0)
                 {
                     ReloadGridStyle();
@@ -270,8 +277,13 @@ namespace HZH_Controls.Controls
                     if (this.panMain.Controls[i].Visible)
                         this.panMain.Controls[i].Visible = false;
                 }
+
+            }
+            finally
+            {
                 ControlHelper.FreezeControl(this, false);
             }
+        }
         #endregion
 
         #region 刷新表格

HZH_Controls/HZH_Controls/Controls/List/UCPagerControl2.cs

@@ -73,10 +73,22 @@ namespace HZH_Controls.Controls
             }
             set
             {
-                base.DataSource = value;
-                if (base.DataSource == null)
+                if (value == null)
+                {
                     base.DataSource = new List<object>();
+                }
+                else
+                {
+                    base.DataSource = value;
+                
+                }
+                PageIndex = 1;
                 ResetPageCount();
+                var s = GetCurrentSource();
+                if (ShowSourceChanged != null)
+                {
+                    ShowSourceChanged(s);
+                }              
             }
         }
 

HZH_Controls/HZH_Controls/Controls/List/UCPagerControlBase.cs

@@ -97,11 +97,19 @@ namespace HZH_Controls.Controls
             get { return m_pageIndex; }
             set { m_pageIndex = value; }
         }
+        private List<object> dataSource;
         /// <summary>
         /// 关联的数据源
         /// </summary>
         /// <value>The data source.</value>
-        public virtual List<object> DataSource { get; set; }
+        public virtual List<object> DataSource
+        {
+            get { return dataSource; }
+            set
+            {
+                dataSource = value;
+            }
+        }
         /// <summary>
         /// 数据源改变时发生
         /// </summary>
@@ -167,8 +175,6 @@ namespace HZH_Controls.Controls
         /// </summary>
         public virtual void FirstPage()
         {
-            if (DataSource == null)
-                return;
             startIndex = 0;
             var s = GetCurrentSource();
 
@@ -182,8 +188,6 @@ namespace HZH_Controls.Controls
         /// </summary>
         public virtual void PreviousPage()
         {
-            if (DataSource == null)
-                return;
             if (startIndex == 0)
                 return;
             startIndex -= m_pageSize;
@@ -201,8 +205,7 @@ namespace HZH_Controls.Controls
         /// </summary>
         public virtual void NextPage()
         {
-            if (DataSource == null)
-                return;
+
             if (startIndex + m_pageSize >= DataSource.Count)
             {
                 return;
@@ -223,7 +226,13 @@ namespace HZH_Controls.Controls
         public virtual void EndPage()
         {
             if (DataSource == null)
+            {
+                if (ShowSourceChanged != null)
+                {
+                    ShowSourceChanged(null);
+                }
                 return;
+            }
             startIndex = DataSource.Count - m_pageSize;
             if (startIndex < 0)
                 startIndex = 0;
@@ -251,7 +260,7 @@ namespace HZH_Controls.Controls
         /// <returns>List&lt;System.Object&gt;.</returns>
         public virtual List<object> GetCurrentSource()
         {
-            if (DataSource == null)
+            if (DataSource == null || DataSource.Count <= 0)
                 return null;
             int intShowCount = m_pageSize;
             if (intShowCount + startIndex > DataSource.Count)

HZH_Controls/Test/FrmTestListView.cs

@@ -16,6 +16,12 @@ namespace Test
         public FrmTestListView()
         {
             InitializeComponent();
+            BtnHelpClick += FrmTestListView_BtnHelpClick;
+        }
+
+        void FrmTestListView_BtnHelpClick(object sender, EventArgs e)
+        {
+            this.ucListView1.Page.DataSource = null;
         }
 
         private void FrmTestListView_Load(object sender, EventArgs e)
@@ -33,5 +39,7 @@ namespace Test
             //this.ucListView1.DataSource = lstSource;
 
         }
+
+   
     }
 }