如何以MDI的子格式（使用功能区）访问变量？ [英] How do I access variables in a child form of MDI (with ribbon)?

问题描述

我正在尝试访问子表单中的变量。我正在从一个多形式的WinForm程序转换为带有功能区的MDI。子表单中的很多代码是相同的，我想编写尽可能多的父表单。我可以访问和修改子项中的控件，但无法弄清楚如何访问和更改变量的方法或找到任何提示。



我的子表单包含一个从List< t>填充的ListBox。在更改要显示的数据时，我通常会更改List< t>。并将ListBox的数据源设置为指向列表。



我尝试过：



我已尝试将它们公开，并尝试使用访问器。



我使用的解决方法是使用子表单控件（标签），然后更改它。然后，子控件xxChanged属性将执行相应的操作。唯一的问题是代码仍在孩子身上。



我可以解决的子格式中是否存在变量（如控件中）？ div class =h2_lin>解决方案

谷歌搜索是你的朋友......快速搜索突出了许多可能对你有帮助的结果。你有没有尝试过任何研究？

我认为你正在以错误的方式解决这个问题。



如果你想重用使用从集合或数据源填充列表控件的代码，将该功能抽象到新助手类（例如ListViewHelper）中的方法中，如下所示：

 public static PopulateListView< br /> 
（ListView listView，< br /> 
 IEnumerable< MyDataObject> dataObjects）

并在各种 Form <中调用该方法/ code> s。



/ ravi




虽然我没有找到一种方法来访问孩子的变量直接形成，我确实找到了一种从功能区执行子窗体中的代码的方法。



1.在子表格上创建一个标签



2.公开（或保护）



3.为标签添加TextChanged事件



4.查找并更改标签文本功能区。




I'm trying to access the variables in a child form. I am transitioning from a multi-form WinForm program to a MDI with a ribbon. A lot of the code in the child forms is the same and I would like to code as much is the parent form. I can access and modify controls in the child, but can't figure out how, or find any hints as to how to access and change the variables.

My child forms include a ListBox that is populated from a List<t>. In changing the data to display I normally change the List<t> and the set the ListBox's Datasource to point to the list.

What I have tried:

I've tried making them public, and have tried to use accessors.

The workaround that I am using is to use a child form control (label), and change that. The child control xxChanged property then takes the appropriate action. The only thing is the code is still in the child.

Isn't there a collection (like in Controls) of variables in the child form I can address?

解决方案

Google Search is your friend... A quick search highlights many possible results that could help you. Have you tried doing any research?




I think you're approaching this problem the wrong way.

If you want to re-use code that populates a list control from a collection or data source, abstract that functionality into a method in a new helper class (e.g. ListViewHelper) like so:

public static PopulateListView<br />
    (ListView listView,<br />
     IEnumerable<MyDataObject> dataObjects)

and call that method in your various Forms.

/ravi




While I did not find a way to access variables in a child form directly, I did figure out a way to execute code in the child form from the ribbon.

1. Create a label on the child form

2. Make it public (or protected)

3. Add a TextChanged event for the label

4. Find and change the label text from the ribbon.




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