是否可以以其他形式访问控件？ [英] Is it possible to access a control in another form?

问题描述

在MDI环境中，我处于一种形式（主要或儿童）。如何从另一种形式的文本框中访问

值？请给我一个例子。

谢谢，

Doru

Hi,

In a MDI environment I am in one form (main or child). How can access a
value from a text box placed in another form? An example please.
Thanks,
Doru

推荐答案

Doru，


您必须有对表单的引用。如果你有一个

引用，那么你必须公开一个方法/属性/字段，它将公开显示TextBox的

。一旦你这样做，你可以调用

方法/属性/字段然后做你需要做的事情。


希望这会有所帮助。

-

- Nicholas Paldino [.NET / C＃MVP]

- mv*@spam.guard.caspershouse.com


" Doru Roman" <做******* @ rogers.com>在消息中写道

news：％2 *************** @ TK2MSFTNGP15.phx.gbl ...

Doru,

You would have to have a reference to the form. If you have a
reference, then you have to expose a method/property/field which will expose
the TextBox publically. Once you do that, you can just call the
method/property/field and then do what you need to do with it.

Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Doru Roman" <do*******@rogers.com> wrote in message
news:%2***************@TK2MSFTNGP15.phx.gbl...

在MDI环境中，我处于一种形式（主要或儿童）。如何从另一种形式的文本框中访问
值？请给我一个例子。
谢谢，
Doru

Hi,

In a MDI environment I am in one form (main or child). How can access a
value from a text box placed in another form? An example please.
Thanks,
Doru

感谢您的回复。

我创建了表格的参考，但我不知道接下来该做什么。

你是什么意思：公开房产？

我是什么尝试将文本框的值转换为表格''的文字

属性。但我想直接获取文本框的文本属性。

Thanks for the reply.
I have created a reference of the form, but I don''t know what to do next.
What do you mean by: "to expose a property"?
What I tried was to transfer the value of the text box into the form''s Text
property. But I would like to get the textbox''s text property directly.

在包含文本框的表单中，你想要做类似
$ b的操作$ b this：


public string CustomerName

{

get {return this.customerNameTextBox.Text; }

}


然后从另一种形式你可以说：


form1.CustomerName


来获取价值。


（当然，将房产名称等更改为更多内容

对你的课程有意义。）


BTW，我不同意尼古拉斯的建议。你最有可能_don''t_

想要通过一个属性公开整个文本框，当你想要的只是内容时，这些内容可能具有一些语义含义（如

他们是客户名称，发票号码，地址或其他东西

之类的东西。公开整个文本框显示_how_您的表单是

显示/接收信息。你想要的只是信息。

In the form that contains the Textbox, you want to do something like
this:

public string CustomerName
{
get { return this.customerNameTextBox.Text; }
}

then from the other form you can say:

form1.CustomerName

to get the value.

(Of course, change the name of the property, etc., to something more
meaningful for your program.)

BTW, I disagree with Nicholas''s suggestion. You most likely _don''t_
want to expose the entire Textbox via a property when all you want is
the contents, and those contents likely have some semantic meaning (as
in they''re a customer name, an invoice number, an address, or something
like that). Exposing the entire Textbox reveals _how_ your form is
displaying / receiving information. All you want is the information.

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