检查多个面板中的控件 [英] Checking Controls in multiple panels

问题描述

我有一个带有多个面板的程序，其中的文本框将共享一个值.例如街道地址.我编写了一种通过共享 TextChanged 事件来更新这些值的方法，但是该事件不会在面板中搜索控件，它只会影响 TextBox主窗体窗口.

I have a programs with multiple panels with textboxes that will share a value. for example a street address. I have coded a way for these values to be updated by sharing a TextChanged event, however the event does not search the panels for the controls, it will only affect a TextBox in the main form window.

代码.

private void matchtextbox(object sender, EventArgs e)
{
    TextBox objTextBox = (TextBox)sender;
    string textchange = objTextBox.Text;           

    foreach (Control x in this.Controls)
    {
        if (x is TextBox)
        {
            if (((TextBox)x).Name.Contains("textBoxAddress"))
            {
                ((TextBox)x).Text = textchange;
            }
        }
    }
}

所以说panel1包含textBoxAddress1，panel包含textBoxAddress2，两者都带有这个TextChanged事件.他们在打字时不会相互更新.但是，如果它们在 panel 之外，它们就会这样做.

So say panel1 contains textBoxAddress1, panel contains textBoxAddress2, both with this TextChanged event. they do not update each other when typing. However if they are outside the panel they do.

最终代码是基于下面一个可爱的社区成员的决议.

Final Code which is the resolution based on a lovely community member below.

private void Recursive(Control.ControlCollection ctrls)
{
    foreach (var item in ctrls)
    {
        if (item is Panel)
        {
            Recursive(((Panel)item).Controls);
        }
        else if (item is TextBox)
        {
            if (((TextBox)item).Name.Contains("txtSAI"))
            {
                ((TextBox)item).Text = textchange;
            }
        }
    }
}

private void matchtextbox(object sender, EventArgs e)
{
    TextBox objTextBox = (TextBox)sender;
    textchange = objTextBox.Text;  
    Recursive(Controls);
}

string textchange;

推荐答案

你需要一个递归 用于此目的的方法:

You need a recursive method for this purpose:

private void Recursive(IEnumerable ctrls)
{
    foreach (var item in ctrls)
    {
        if (item is Panel)
        {
            Recursive(((Panel)item).Controls);
        }
        else if(item is TextBox)
        {
            if (((TextBox)item).Name.Contains("textBoxAddress"))
            {
                ((TextBox)item).Text = textchange;
            }
        }
    }
}

然后这样称呼它:

private void matchtextbox(object sender, EventArgs e)
{
     Recursive(Controls);
}

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