如何使一种形式的按钮影响另一种形式的列表视图? [英] How to make buttons from one form affect a listview in another one?

问题描述

我想要一种形式的按钮，然后在单击它们时，将一项以另一种形式添加到列表中.

I want to have buttons in one form, then as I click on them, an item is added to a list in another form.

这是我当前的代码，请记住，在此代码中，按钮的格式与列表视图的形式相同，我想将其中任一按钮移到新的位置:

This is my current code, take in mind that in this code the buttons are in the same form as the listview, and I want to move either to a new one:

    private void button2_Click(object sender, EventArgs e)
    {
        listView1.Items.Add("Panama");
    }

    private void button3_Click(object sender, EventArgs e)
    {
        listView1.Items.Add("Brazil");
    }

    private void button4_Click(object sender, EventArgs e)
    {
        listView1.Items.RemoveAt(0);
    }

单击按钮后，如何以另一种形式的列表添加项目?

How do I do so when the button is clicked, the list in another form gets the item added?

推荐答案

您需要引用调用操作的表单中的其他表单. 一种方法是将ListView公开为Form本身的属性，并通过Form对其进行引用

You need to have a reference to the other forms from the form that invokes the action. One way is to expose the ListView as a property on the Form itself and the just reference it via the Form

从Form1

private void button4_Click(object sender, EventArgs e)
    {
        Form2Instance.MyListView.Items.RemoveAt(0);
    }

在Form2中，添加以下包装以显示原始listView

In Form2 add the following wrapper to expose the original listView

public ListView MyListView{get{return this.ListView1;}}

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