comboBox值 [英] comboBox value
本文介绍了comboBox值的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
您好，我正在尝试获取comboBox值，但是当我写作时：
MessageBox.Show（this.comboBoxdb.SelectedValue.ToSt ring（）） ;
我得到以下结果：
System.Data.DataRowView
而不是选定的值。为什么？
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解决方案
你会得到那个价值因为你的数据绑定到
ComboBox而被退回。将SelectedValue转换为DataRowView，然后您可以从Row属性和所需列中获取
适当的值。
-
Tim Wilson
..Net Compact Framework MVP
" juli jul" <菊****** @ yahoo.com>在消息中写道
news：en ************** @ tk2msftngp13.phx.gbl ...
你好，我正在尝试获取comboBox值但是当我写作时：
MessageBox.Show（this.comboBoxdb.SelectedValue.ToSt ring（））;
我得到以下结果：
系统.Data.DataRowView
而不是选定的值。为什么？
***通过开发人员指南 http：//www.developersdex发送。 com ***
不要只是参加USENET ......获得奖励！
你''得到那个价值因为你的数据绑定到
ComboBox而被退回。将SelectedValue转换为DataRowView，然后您可以从Row属性和所需列中获取
适当的值。
-
Tim Wilson
..Net Compact Framework MVP
" juli jul" <菊****** @ yahoo.com>在消息中写道
news：en ************** @ tk2msftngp13.phx.gbl ...
你好，我正在尝试获取comboBox值但是当我写作时：
MessageBox.Show（this.comboBoxdb.SelectedValue.ToSt ring（））;
我得到以下结果：
系统.Data.DataRowView
而不是选定的值。为什么？
***通过开发人员指南 http：//www.developersdex发送。 com ***
不要只是参加USENET ......获得奖励！
谢谢，但我铸造失败 - 我怎么能这样做（我试图创建新的
DataRowView而不是将SelectedValue指向它但它没有工作）
怎么办它？
谢谢！
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Hello ,I am trying to get the comboBox value but when I am writing:
MessageBox.Show(this.comboBoxdb.SelectedValue.ToSt ring());
I get the following result:
System.Data.DataRowView
instead of the selected value . Why?
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解决方案
You''ll get that "value" being returned because you''re data binding to the
ComboBox. Cast the SelectedValue to a DataRowView and then you can get the
appropriate value from the Row property and desired column.
--
Tim Wilson
..Net Compact Framework MVP
"juli jul" <ju******@yahoo.com> wrote in message
news:en**************@tk2msftngp13.phx.gbl...
Hello ,I am trying to get the comboBox value but when I am writing:
MessageBox.Show(this.comboBoxdb.SelectedValue.ToSt ring());
I get the following result:
System.Data.DataRowView
instead of the selected value . Why?
*** Sent via Developersdex http://www.developersdex.com ***
Don''t just participate in USENET...get rewarded for it!
You''ll get that "value" being returned because you''re data binding to the
ComboBox. Cast the SelectedValue to a DataRowView and then you can get the
appropriate value from the Row property and desired column.
--
Tim Wilson
..Net Compact Framework MVP
"juli jul" <ju******@yahoo.com> wrote in message
news:en**************@tk2msftngp13.phx.gbl...
Hello ,I am trying to get the comboBox value but when I am writing:
MessageBox.Show(this.comboBoxdb.SelectedValue.ToSt ring());
I get the following result:
System.Data.DataRowView
instead of the selected value . Why?
*** Sent via Developersdex http://www.developersdex.com ***
Don''t just participate in USENET...get rewarded for it!
Thanks but I the casting fails - how can I do it (I tried to create new
DataRowView and than asign the SelectedValue to it but it didn''t work)
How to do it?
Thank you!
*** Sent via Developersdex http://www.developersdex.com ***
Don''t just participate in USENET...get rewarded for it!
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