一次使窗体上的所有控件为只读 [英] Make all Controls on a Form read-only at once

问题描述

有人有一段代码可以将所有控件（甚至所有文本框）制成一次性只读的表单，而不必将每个控件都设置为只读吗？

Does anyone have a piece of code to make all Controls (or even all TextBoxes) in a Form which is read-only at once without having to set every Control to read-only individually?

推荐答案

格式：

if (_cached == null)
{
    _cached = new List<TextBox>();

    foreach(var control in Controls)
    {
        TextBox textEdit = control as TextBox;
        if (textEdit != null)
        {
            textEdit.ReadOnly = false;
            _cached.Add(textEdit);
        }
    }
} 
else
{
    foreach(var control in _cached)
    {            
        control .ReadOnly = false;
    }
}

还添加递归（可以将控件放入其他控件中（面板）。

Add recursion also (Controls can be placed into other controls (panels)).

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