获得从pressed按钮返回值 [英] Get return value from pressed button

问题描述

我有弹出在特定事件的形式。它制定按钮从一个数组并设置标记值设置为特定值。所以，如果你是preSS或单击该按钮的功能应该返回变量值。

我怎样才能做到这一点？而且我怎么知道哪个按钮被点击？ 这时的code返回的DialogResult，但我想从函数返回的标记值。应如何修改我的code，以便它可以做到这一点？

 公共静态的DialogResult选择框（字符串名称，字符串[] btnArray，字符串[] btnValueArray）
{
    Form表单=新表（）;

    按钮[] buttonArray;
    buttonArray =新按钮[5];

    form.Text =称号;

    的for（int i = 0; I＆LT; btnArray.Length;我++）
    {
        buttonArray [我] =新的Button（）;
        buttonArray [I]。文= btnArray [I]
        buttonArray [I] .TAG =新INT（）;
        buttonArray [I] .TAG = btnValueArray [I]

        buttonArray [I] .TabStop = FALSE;
        buttonArray [I] .Location =新System.Drawing.Point（0，I * 40）;
        buttonArray [I] .Size =新System.Drawing.Size（240，40）;
    }

    form.ClientSize =新的大小（240，268）;
    form.Controls.AddRange（新控制[] {buttonArray [0]，buttonArray [1]，buttonArray [2]}）;
    form.FormBorderStyle = FormBorderStyle.FixedDialog;
    form.StartPosition = FormStartPosition.CenterScreen;
    form.MinimizeBox = FALSE;
    form.MaximizeBox = FALSE;

    的DialogResult的DialogResult = form.ShowDialog（）;
    返回的DialogResult;
}
 

解决方案

添加一个私有变量的形式：

 私有对象SelectedTag;
 

添加一个按钮单击处理程序：

 私人无效Button_Click（对象发件人，EventArgs的）{
    SelectedTag =（（按钮）发送方）.TAG;
}
 

指定的处理程序创建的每个按钮：

  ..
buttonArray [I] .OnClick + = form.Button_Click;
..
 

然后在你的静态功能，只需返回 form.SelectedTag 代替的DialogResult。

I have a form that pops up at a specific event. It draws up buttons from an array and sets the Tag value to a specific value. So if you are to press or click this button the function should return the Tag value.

How can I do this? And how do I know which button was clicked? At this moment the code returns DialogResult, but I want to return the Tag value from the function. How shall I modify my code so that it can do this?

public static DialogResult SelectBox(string title, string[] btnArray, string[] btnValueArray)
{
    Form form = new Form();

    Button[] buttonArray;
    buttonArray = new Button[5];

    form.Text = title;

    for (int i = 0; i < btnArray.Length; i++)
    {
        buttonArray[i] = new Button();
        buttonArray[i].Text = btnArray[i];
        buttonArray[i].Tag = new int();
        buttonArray[i].Tag = btnValueArray[i];

        buttonArray[i].TabStop = false;
        buttonArray[i].Location = new System.Drawing.Point(0, i * 40);
        buttonArray[i].Size = new System.Drawing.Size(240, 40);
    }

    form.ClientSize = new Size(240, 268);
    form.Controls.AddRange(new Control[] { buttonArray[0], buttonArray[1], buttonArray[2] });
    form.FormBorderStyle = FormBorderStyle.FixedDialog;
    form.StartPosition = FormStartPosition.CenterScreen;
    form.MinimizeBox = false;
    form.MaximizeBox = false;

    DialogResult dialogResult = form.ShowDialog();
    return dialogResult;
}

解决方案

Add a private variable in the form:

private object SelectedTag;

Add a button click handler:

private void Button_Click(object sender, EventArgs e) {
    SelectedTag = ((Button)sender).Tag;
}

Assign the handler to each button you create:

..
buttonArray[i].OnClick += form.Button_Click;
..

Then in your static function, simply return form.SelectedTag instead of the dialogresult.

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