如何根据在父表单上单击的按钮打开包含规格的新表单？ [英] How do I open a new form with specifications based on the button clicked on parent form?

问题描述

对不起，如果问题有点偏，还是编程中的新手。我似乎无法在一个问题中描述它。



我正在尝试通过使用1个表单来实现3个功能来简化我的程序（添加，编辑，查看）。现在有了这三个功能，唯一的区别是，编辑和视图中禁用了文本框。



我无法内化我应该如何处理这个。我正在使用组合框作为菜单。我已经指定了按钮，根据它所使用的菜单打开特定的表单。



我的计划是在父表单中的变量上放置一个值如果要启用字段，则单击按钮并在子窗体上调用它作为基础。但是，我似乎无法从父表单中调用它。



我尝试了什么：



尝试从父表单调用一个变量，但似乎无法调用它。

Sorry if the question is a bit off, still a newbie in programming. I can't seem to describe it in 1 question.

I'm trying to simplify my program by just using 1 form for 3 functions (Add, Edit, View). Now with those 3 functions, the only difference is that, Edit and View have textboxes disabled in them.

I'm having trouble internalizing on how I should approach this one. I'm using a combobox as a menu. I've specified the buttons to open specific forms based on what menu it is on.

My plan was to put a value on a variable in the parent form when the button is clicked and call it on the child form as a basis if the fields should be enabled or not. But, I can't seem to call it from the parent form.

What I have tried:

Tried calling a variable from parent form but can't seem to call it.

推荐答案

这不难，真的！

在Form2中创建一个枚举：

It's not difficult, really!
Create an enum in Form2:

public enum FormFunction
    {
    Add,
    Edit,
    View
    }

然后将Form2构造函数更改为接受枚举的实例：

Then change the Form2 constructor to accept an instance of the enum:

public Form2(FormFunction function)
    {
    InitializeComponent();
    switch (function)
        {
        case FormFunction.Add:
            ...
            break;
        case FormFunction.Edit:
            ...
            break;
        case FormFunction.View:
            ...
            break;
        default: throw new ArgumentOutOfRangeException("Unknown FormFunction: " + function);
        }
    }

并使用新构造函数构造它：

And construct it using the new constructor:

Form2 f = new Form2(Form2.FormFunction.Edit);

然后，您可以根据需要修改控件状态和可见性。

You can then modify your controls state and visibility as required.

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