更改listView.sorting火灾ItemCheckEventHandler

Question

我有一个ListView在第一列有复选框。当为自定义排序编写一些代码时（当用户点击列标题时），我遇到了一些奇怪的行为。当用户单击列标题时，我使用ColumnClickEventHandler将listView.Sorting设置为SortOrder.Ascending（或SortOrder.Descending）;当这行代码被击中时，它似乎会触发ItemCheck事件处理程序。

例如

listView.ItemCheck += new ItemCheckEventHandler(listView_ItemCheck); 
listView.ColumnClick += new ColumnClickEventHandler(listView_ColumnClick); 
... 
... 
void listView_ColumnClick(object sender, ColumnClickEventArgs e) 
{ 
    // Determine whether the column is the same as the last column clicked. 
    if (e.Column != sortColumn) 
    { 
     // Set the sort column to the new column. 
     sortColumn = e.Column; 
     // Set the sort order to ascending by default. 
     listView.Sorting = SortOrder.Ascending; 
    } 
    else 
    { 
     // Determine what the last sort order was and change it. 
     if (listView.Sorting == SortOrder.Ascending) 
     listView.Sorting = SortOrder.Descending; 
     else 
     listView.Sorting = SortOrder.Ascending; 
    } 
} 

行listView.Sorting = SortOrder.Descending后;被命中listView.ItemCheck的事件处理程序被调用。

Answer 1

这可能是一个坏把戏，但你可以尝试：

void listView_ColumnClick(object sender, ColumnClickEventArgs e) 
{ 
    listView.ItemCheck -= listView_ItemCheck; 
    // Determine whether the column is the same as the last column clicked. 
    if (e.Column != sortColumn) 
    { 

     // Set the sort column to the new column. 
     sortColumn = e.Column; 
     // Set the sort order to ascending by default. 
     listView.Sorting = SortOrder.Ascending; 
    } 
    else 
    { 
     // Determine what the last sort order was and change it. 
     if (listView.Sorting == SortOrder.Ascending) 
     listView.Sorting = SortOrder.Descending; 
     else 
     listView.Sorting = SortOrder.Ascending; 

    } 
    listView.ItemCheck += listView_ItemCheck; 
} 

或

使用

listView_ColumnClick使用（同一个地方我的修改）布尔属性（private bool disableItemCheck_）和

listView_ItemCheck 

if (disableItemCheck_) 
return; 
//ItemCheck logic