请问：
单行文本框中自定义的pbm_enchange事件代码不会执行。
如果改成dw里的editchanged事件也不会执行。
有什么办法替代吗？
万谢。。。
------解决方案--------------------
pb的webform不支持事件ID关联的自定义事件，另外，还有下列不支持的事件
而且做为web，除非你能很好地使用ajax，否则不建议使用类似于增量检索这类的，交互次数与程序性命攸有关
Custom events Custom events based on PowerBuilder Message (pbm) event IDs are not supported in Web Forms applications. However, you can call user-defined events without event IDs using the TriggerEvent and PostEvent functions.
Table 8-8: Unsupported events by control in Web Forms projects Event Controls
BeginDrag All controls
BeginLabelEdit ListView, TreeView
BeginRightDrag All controls
Clicked DatePicker, MonthCalendar
(supported for DataWindow, but not triggered on editable controls that already have focus)
CloseUp DatePicker
Deactivate Window
DeleteAllItems ListView
DoubleClicked DatePicker, DropDownListBox, DropDownPictureListBox, HProgressBar, ListBox, MonthCalendar, RichTextEdit, Tab, VProgressBar, Window (supported for other controls, but the Clicked event is not triggered on a double-click in a Picture or StaticText control)
DragDrop All controls
DragEnter All controls
DragLeave All controls
DragWithin All controls
DropDown DatePicker
EditChanged DataWindow
EndLabelEdit ListView, TreeView
FileExists RichTextEdit
GetFocus All controls
Help All controls
Hide Window
HotLinkAlarm Window
InputFieldSelected RichTextEdit
ItemActivate ListView
ItemChanged DataStore
Key All controls
LoseFocus All controls
MouseDown RichTextEdit, Window
MouseMove RichTextEdit, Window
MouseUp RichTextEdit, Window
Notify TreeView
Other All controls
PrintEnd DataWindow
PrintMarginChange DataWindow
PrintPage DataWindow
PrintStart DataWindow
RButtonDown MultiLineEdit, SingleLineEdit, HScrollBar, VScrollBar
RButtonUp RichTextEdit
RemoteExec Window
RemoteHotLinkStart Window
RemoteHotLinkStop Window
RemoteRequest Window
RemoteSend Window
RightClicked ListView
RightDoubleClicked All controls
ScrollHorizontal DataWindow
ScrollVertical DataWindow
Selected Menu
Sort ListView, TreeView
SystemKey Window
ToolbarMoved Window
ValueChanged DatePicker
Partially supported control events
------解决方案--------------------
数据窗口的editchanged事件是可以执行的，但每次都需要回调服务器端程序，效率太差了，你可以写javascript
以下是pb帮助中关于webform的介绍
Example code for an event handling script
The following is an example of a customized, client-side JavaScript event handler for the ItemChanged event of a DataWindow. The event handler determines whether the item changed is in the first or second column of the DataWindow. If the item is in one of the first two columns, this event handler calls the default JavaScript event handler that rejects item changes. In this case, the default event handler does not cause a postback. If the item changed is not in the first or second column, no client-side action is taken, and the server-side action is delayed until a postback is triggered by a different event or function call:
//Start MyScriptFile.js
function MyItemChanged(sender, rowNumber, columnName, newValue)
{
if(columnName == "column1"
------解决方案--------------------
columnName == "column2")
{
// The default function is invoked
return PBDataWindow_ItemChangedReject(sender, rowNumber, columnName, newValue)
}
else
{
//do nothing
}
}
//End MyScriptFile.js
The hook into the customized JavaScript event handler is added at design time in a conditional compilation code block: