用于将字符串转换为Label时控制错误 [英] Controls error when using to convert string to Label

问题描述

我在vs2008中的windows mobile 6中写了一个vb appl



我写了一些代码如下：



lblfld（1）=lbl_field_1

bllfld（2）=lbl_field_2



lblfld_show（1）=Part不。

lblfld_show（2）=客户批号



和lbl_field_1是标签格式



此应用程序运行此语句时，

Panel_Main.Controls（lblfld（y））。Text = lblfld_show（y）



它总是会产生InvalidCastExceptionunhandled错误： -

从字符串lbl_field_1转换为''整数''是无效。



任何人都可以向我提出解决方案。谢谢

I write a vb appl in window mobile 6 in vs2008

I write some code as follow :

lblfld(1) = "lbl_field_1"
bllfld(2) = "lbl_field_2"

lblfld_show(1) = "Part No."
lblfld_show(2) = "Client Lot No."

And "lbl_field_1" is Label in the form

when this app run to this statment,
Panel_Main.Controls(lblfld(y)).Text = lblfld_show(y)

It always incur an InvalidCastExceptionunhandled error as :-
"Conversion from string "lbl_field_1" to type ''Integer'' is not valid."

Can anyone metion a solution to me. Thanks

推荐答案

你真的需要在VB.NET上获取一本初学者书并完成它。您不能将字符串分配给需要数字的属性。您也不能将控件的名称用作数字，即使您没有真正这样做，看起来好像您认为这样可行。

You REALLY need to pickup a beginners book on VB.NET and work through it. You cannot assign a string to a property that expects a number. You also cannot use the name of a control as a number, even though you didn''t really do that, it appears as though you think that will work.

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