ListView selectindex事件错误????? [英] ListView selectindex event bug?????

问题描述

好的，麻烦：


表格：


面具（很多文字框和......）

Listview 1作为Listview与一些项目

booEdit as boolean = False

intEditIndex as integer


场景：

- 我选择项目1

（我得到事件Listview1.SelectIndexChanged - 我加载掩码为

所选项目）

- 我去编辑所选项目的面具模式（我设置booEdit = true，

intEditIndex = Listview1.selecteditems.item（0）.index）

- 我改变了面具上的一些字段

- 然后我点击其他item10（我得到活动

Listview1.SelectIndexChanged），我问自己，如果我''我正在编辑

模式然后让我保存更改...

- res = msgbox（你想保存更改吗？，yesnocancel，.. 。）

case是的：我保存了面具（对于item1），让listview1转到item10

（...加载面具...... booEdit = false。 ...）

案例编号：s是的，但是没有保存更改

case取消（麻烦）：我什么也没做，除了我想要item1是

被选中。

Private Sub ListView1Ch（ByVal sender As System.Object，ByVal e As

System.EventArgs）处理Listview1.SelectedIndexChanged

如果Listview1.selecteditems.count> ; 0然后

如果me.editmode那么

Dim res As Microsoft.VisualBasic.MsgBoxResult

res = MsgBox（" Save？"， MsgBoxStyle.YesNoCancel + MsgBoxStyle.Question）

如果res = msgboxresult.cancel那么

me.listview1.items（me.intEditIndex）.selected = true;

结束如果

其他

loadmask（listview1.selecteditems.item（0））

结束如果

结束如果

结束子


我明白当我打电话给

''me.listview1.items（我。 intEditIndex）.selected = true;''我将在事件Listview1.SelectedIndexChanged上再次通知

所以我添加了另一个布尔值来

过滤掉不需要的事件（参见booSlave） 。


Dim booSlave as boolean = false

Private Sub ListView1Ch（ByVal sender As System.Object，ByVal e As

System .EventArgs）处理Listview1.SelectedIndexChanged

如果booSlave = true则退出sub

如果Listview1.selecteditems.coun t> 0然后

如果me.editmode那么

Dim res As Microsoft.VisualBasic.MsgBoxResult

res = MsgBox（" Save？"， MsgBoxStyle.YesNoCancel + MsgBoxStyle.Question）

如果res = msgboxresult.cancel那么

booSlave = true

me.listview1.items（我。 intEditIndex）.selected = true;

booSlave = false

结束如果

else

loadmask（listview1.selecteditems .item（0））

结束如果

结束如果

结束子


麻烦当我在调试模式下（一步一步地做）时，一切都好了，但是当我在运行时（没有断点）时，我得到了

messagebox要我保存2次....


错误还是我的错误？

感谢您有兴趣阅读本文。


re，HaBiX

（框架1.1，vs 2003 EA，vb.net）

解决方案

< blockquote>你确定booSlave布尔值保持正确吗？我想你必须声明

它是私人的


eric


" HABJAN？iga" < habix [AT] intelcom [点] SI>在留言中写道

news：bm ******** @ enews3.newsguy.com ...

好的，麻烦：

面具（很多文本框和......）
Listview 1作为Listview的一些项目
booEdit as boolean = False
intEditIndex as整数

场景：
- 我选择第1项
（我得到事件Listview1.SelectIndexChanged - 我加载了
所选项目的面具）
- 我转到所选项目的面具编辑模式（我设置booEdit = true，
intEditIndex = Listview1.selecteditems.item（0）.index）
- 我改变了面具上的一些字段
- 然后我点击其他item10（我得到活动
Listview1.SelectIndexChanged），我问自己如果我在编辑
模式然后要求我保存更改...
- res = msgbox（你要保存更改吗？，yesnocancel，...）
案例是：我保存了面具（对于item1），让listview1转到item10
（ ......加载面具.... booEdit = false ....）
案例否：同样如此，但没有保存更改
案例取消（麻烦）：除了我想要选择item1之外什么都不做。

Private Sub ListView1Ch（ ByVal sender As System.Object，ByVal e As
System.EventArgs）处理Listview1.SelectedIndexChanged
如果Listview1.selecteditems.count> 0然后
如果me.editmode然后
Dim res As Microsoft.VisualBasic.MsgBoxResult
res = MsgBox（" Save？"，MsgBoxStyle.YesNoCancel + MsgBoxStyle.Question）
如果res = msgboxresult.cancel那么
me.listview1.items（me.intEditIndex）.selected = true;
结束如果
其他
loadmask（listview1.selecteditems.item（0 ））
结束如果结束如果
结束子

我明白，当我打电话给我时，我的电子邮件是
''me.listview1.items（me.intEditIndex） .selected = true;''我将在事件Listview1.SelectedIndexChanged上再次通知
所以我添加了另一个布尔值
来过滤掉不需要的事件（参见booSlave）。

昏暗booSlave as boolean = false
Private Sub ListView1Ch（ByVal sender As System.Object，ByVal e As
System.EventArgs）处理Listview1.SelectedIndexChanged
如果booSlave = true则退出sub
如果Listview1.selecteditems.count> 0然后
如果me.editmode然后
Dim res As Microsoft.VisualBasic.MsgBoxResult
res = MsgBox（" Save？"，MsgBoxStyle.YesNoCancel + MsgBoxStyle.Question）
如果res = msgboxresult.cancel那么
booSlave = true
me.listview1.items（me.intEditIndex）.selected = true;
booSlave = false
结束如果
否则
loadmask（listview1.selecteditems.item（0））
结束如果结束如果
结束Sub

麻烦就在我的时候在调试模式下（一步一步地做）一切都好了，但是当我在运行时（没有断点）时，我得到了
消息框，要求我保存2次....错误或我的错误？
感谢您有兴趣阅读本文。

，HaBiX

（框架1.1，vs 2003 EA ，vb.net）

您好HABJAN，

如果me.editmode那么

那是什么，我没看到它作为表格的一员，但也许我看到

出了什么问题？


Cor

好的...如果有人想要'尝试它来获取来自
的源代码 http://www.intelcom.si/test.zip

点击item1（选择它）

点击编辑

然后点击第3项

best re，habix

" HABJAN？iga" < habix [AT] intelcom [点] SI>在留言中写道

news：bm ******** @ enews3.newsguy.com ...

好的，麻烦：

面具（很多文本框和......）
Listview 1作为Listview的一些项目
booEdit as boolean = False
intEditIndex as整数

场景：
- 我选择第1项
（我得到事件Listview1.SelectIndexChanged - 我加载了
所选项目的面具）
- 我转到所选项目的面具编辑模式（我设置booEdit = true，
intEditIndex = Listview1.selecteditems.item（0）.index）
- 我改变了面具上的一些字段
- 然后我点击其他item10（我得到活动
Listview1.SelectIndexChanged），我问自己如果我在编辑
模式然后要求我保存更改...
- res = msgbox（你要保存更改吗？，yesnocancel，...）
案例是：我保存了面具（对于item1），让listview1转到item10
（ ......加载面具.... booEdit = false ....）
案例否：同样如此，但没有保存更改
案例取消（麻烦）：除了我想要选择item1之外什么都不做。

Private Sub ListView1Ch（ ByVal sender As System.Object，ByVal e As
System.EventArgs）处理Listview1.SelectedIndexChanged
如果Listview1.selecteditems.count> 0然后
如果me.editmode然后
Dim res As Microsoft.VisualBasic.MsgBoxResult
res = MsgBox（" Save？"，MsgBoxStyle.YesNoCancel + MsgBoxStyle.Question）
如果res = msgboxresult.cancel那么
me.listview1.items（me.intEditIndex）.selected = true;
结束如果
其他
loadmask（listview1.selecteditems.item（0 ））
结束如果结束如果
结束子

我明白，当我打电话给我时，我的电子邮件是
''me.listview1.items（me.intEditIndex） .selected = true;''我将在事件Listview1.SelectedIndexChanged上再次通知
所以我添加了另一个布尔值
来过滤掉不需要的事件（参见booSlave）。

昏暗booSlave as boolean = false
Private Sub ListView1Ch（ByVal sender As System.Object，ByVal e As
System.EventArgs）处理Listview1.SelectedIndexChanged
如果booSlave = true则退出sub
如果Listview1.selecteditems.count> 0然后
如果me.editmode然后
Dim res As Microsoft.VisualBasic.MsgBoxResult
res = MsgBox（" Save？"，MsgBoxStyle.YesNoCancel + MsgBoxStyle.Question）
如果res = msgboxresult.cancel那么
booSlave = true
me.listview1.items（me.intEditIndex）.selected = true;
booSlave = false
结束如果
否则
loadmask（listview1.selecteditems.item（0））
结束如果结束如果
结束Sub

麻烦就在我的时候在调试模式下（一步一步地做）一切都好了，但是当我在运行时（没有断点）时，我得到了
消息框，要求我保存2次....错误或我的错误？
感谢您有兴趣阅读本文。

，HaBiX

（框架1.1，vs 2003 EA ，vb.net）

Ok, the trouble:

On form:

Mask (lots of textboxes & ...)
Listview 1 as Listview with some items
booEdit as boolean=False
intEditIndex as integer

Scenario:
- i select item 1
(i get event Listview1.SelectIndexChanged - i load the mask for
selected item)
- i go to edit mode of the mask for selected item (i set booEdit=true,
intEditIndex = Listview1.selecteditems.item(0).index)
- i change some fields on my mask
- then i click on other item10 (i get event
Listview1.SelectIndexChanged), and i ask myself in event if i''am in edit
mode then ask me to save changes...
- res = msgbox("Do you want to save changes?",yesnocancel,...)
case Yes: i save the mask (for item1) and let listview1 go to item10
(...load the mask....booEdit=false....)
case No: same as yes, but no saving the changes
case Cancel (the trouble): i do nothing except i want that item1 is
selected.

Private Sub ListView1Ch(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles Listview1.SelectedIndexChanged
If Listview1.selecteditems.count > 0 then
if me.editmode then
Dim res As Microsoft.VisualBasic.MsgBoxResult
res = MsgBox("Save?", MsgBoxStyle.YesNoCancel + MsgBoxStyle.Question)
if res = msgboxresult.cancel then
me.listview1.items(me.intEditIndex).selected=true;
end if
else
loadmask(listview1.selecteditems.item(0))
end if
end if
End Sub

I understand that when i call
''me.listview1.items(me.intEditIndex).selected=true ;'' i will be notifyed
again on event Listview1.SelectedIndexChanged so i added another boolean to
filter out unwanted events (see the booSlave).

Dim booSlave as boolean=false
Private Sub ListView1Ch(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles Listview1.SelectedIndexChanged
if booSlave=true then exit sub
If Listview1.selecteditems.count > 0 then
if me.editmode then
Dim res As Microsoft.VisualBasic.MsgBoxResult
res = MsgBox("Save?", MsgBoxStyle.YesNoCancel + MsgBoxStyle.Question)
if res = msgboxresult.cancel then
booSlave=true
me.listview1.items(me.intEditIndex).selected=true;
booSlave=false
end if
else
loadmask(listview1.selecteditems.item(0))
end if
end if
End Sub

The trouble is when i''am in debug mode (doing it step by step) everything
turns out ok, but when i do it in runtime (no breakpoints), i get the
messagebox asking me to save 2 times....

Bug or my mistake?
Thanks for taking interest in reading this.

re, HaBiX
(framework 1.1, vs 2003 EA, vb.net)

解决方案

are you sure the booSlave boolean stays true ?? i think you have to declare
it as private

eric

"HABJAN ?iga" <habix[AT]intelcom[DOT]si> wrote in message
news:bm********@enews3.newsguy.com...

Ok, the trouble:

On form:

Mask (lots of textboxes & ...)
Listview 1 as Listview with some items
booEdit as boolean=False
intEditIndex as integer

Scenario:
- i select item 1
(i get event Listview1.SelectIndexChanged - i load the mask for
selected item)
- i go to edit mode of the mask for selected item (i set booEdit=true,
intEditIndex = Listview1.selecteditems.item(0).index)
- i change some fields on my mask
- then i click on other item10 (i get event
Listview1.SelectIndexChanged), and i ask myself in event if i''am in edit
mode then ask me to save changes...
- res = msgbox("Do you want to save changes?",yesnocancel,...)
case Yes: i save the mask (for item1) and let listview1 go to item10
(...load the mask....booEdit=false....)
case No: same as yes, but no saving the changes
case Cancel (the trouble): i do nothing except i want that item1 is
selected.

Private Sub ListView1Ch(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles Listview1.SelectedIndexChanged
If Listview1.selecteditems.count > 0 then
if me.editmode then
Dim res As Microsoft.VisualBasic.MsgBoxResult
res = MsgBox("Save?", MsgBoxStyle.YesNoCancel + MsgBoxStyle.Question)
if res = msgboxresult.cancel then
me.listview1.items(me.intEditIndex).selected=true;
end if
else
loadmask(listview1.selecteditems.item(0))
end if
end if
End Sub

I understand that when i call
''me.listview1.items(me.intEditIndex).selected=true ;'' i will be notifyed
again on event Listview1.SelectedIndexChanged so i added another boolean to filter out unwanted events (see the booSlave).

Dim booSlave as boolean=false
Private Sub ListView1Ch(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles Listview1.SelectedIndexChanged
if booSlave=true then exit sub
If Listview1.selecteditems.count > 0 then
if me.editmode then
Dim res As Microsoft.VisualBasic.MsgBoxResult
res = MsgBox("Save?", MsgBoxStyle.YesNoCancel + MsgBoxStyle.Question)
if res = msgboxresult.cancel then
booSlave=true
me.listview1.items(me.intEditIndex).selected=true;
booSlave=false
end if
else
loadmask(listview1.selecteditems.item(0))
end if
end if
End Sub

The trouble is when i''am in debug mode (doing it step by step) everything
turns out ok, but when i do it in runtime (no breakpoints), i get the
messagebox asking me to save 2 times....

Bug or my mistake?
Thanks for taking interest in reading this.

re, HaBiX
(framework 1.1, vs 2003 EA, vb.net)

Hi HABJAN,

if me.editmode then

What is that, I did not see it as a member of the form, but maybe I see
something wrong?

Cor

OK... if someone want''s to try it get the source code from
http://www.intelcom.si/test.zip

Click on item1 (select it)
Click on edit
Then click on item 3

best re, habix
"HABJAN ?iga" <habix[AT]intelcom[DOT]si> wrote in message
news:bm********@enews3.newsguy.com...

Ok, the trouble:

On form:

Mask (lots of textboxes & ...)
Listview 1 as Listview with some items
booEdit as boolean=False
intEditIndex as integer

Scenario:
- i select item 1
(i get event Listview1.SelectIndexChanged - i load the mask for
selected item)
- i go to edit mode of the mask for selected item (i set booEdit=true,
intEditIndex = Listview1.selecteditems.item(0).index)
- i change some fields on my mask
- then i click on other item10 (i get event
Listview1.SelectIndexChanged), and i ask myself in event if i''am in edit
mode then ask me to save changes...
- res = msgbox("Do you want to save changes?",yesnocancel,...)
case Yes: i save the mask (for item1) and let listview1 go to item10
(...load the mask....booEdit=false....)
case No: same as yes, but no saving the changes
case Cancel (the trouble): i do nothing except i want that item1 is
selected.

Private Sub ListView1Ch(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles Listview1.SelectedIndexChanged
If Listview1.selecteditems.count > 0 then
if me.editmode then
Dim res As Microsoft.VisualBasic.MsgBoxResult
res = MsgBox("Save?", MsgBoxStyle.YesNoCancel + MsgBoxStyle.Question)
if res = msgboxresult.cancel then
me.listview1.items(me.intEditIndex).selected=true;
end if
else
loadmask(listview1.selecteditems.item(0))
end if
end if
End Sub

I understand that when i call
''me.listview1.items(me.intEditIndex).selected=true ;'' i will be notifyed
again on event Listview1.SelectedIndexChanged so i added another boolean to filter out unwanted events (see the booSlave).

Dim booSlave as boolean=false
Private Sub ListView1Ch(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles Listview1.SelectedIndexChanged
if booSlave=true then exit sub
If Listview1.selecteditems.count > 0 then
if me.editmode then
Dim res As Microsoft.VisualBasic.MsgBoxResult
res = MsgBox("Save?", MsgBoxStyle.YesNoCancel + MsgBoxStyle.Question)
if res = msgboxresult.cancel then
booSlave=true
me.listview1.items(me.intEditIndex).selected=true;
booSlave=false
end if
else
loadmask(listview1.selecteditems.item(0))
end if
end if
End Sub

The trouble is when i''am in debug mode (doing it step by step) everything
turns out ok, but when i do it in runtime (no breakpoints), i get the
messagebox asking me to save 2 times....

Bug or my mistake?
Thanks for taking interest in reading this.

re, HaBiX
(framework 1.1, vs 2003 EA, vb.net)

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