我正在尝试创建一个程序,我有81个文本框。我需要能够以编程方式在c#中选择Windows窗体控件,并将其设置为某个字符串,并更改它是否为只读并更改背景颜色。有没有人对如何做到这一点有任何想法?像这样:
RandomTextbox.Text = MyStringValue;
RandomTextbox.ReadOnly = true;
RandomTextbox.BackColor = System.Drawing.SystemColors.Window;
答案 0 :(得分:3)
如果所有文本框都属于同一个父控件,则可以执行以下操作:
var random = new Random(); // Put this somewhere to be called one time
var textboxes = parentControl.Controls.OfType<TextBox>().ToList();
var randomTextbox = textboxes[random.Next(textboxes.Count)];
randomTextbox.Text = "I've been choooooooosen!";
答案 1 :(得分:2)
将TextBox命名为TextBox1,TextBox2,...,TextBox81
// generates a random value between 1 and 81
Random rnd = new Random();
// find the textbox and change its properties
TextBox tb = this.Controls.Find("TextBox" + rnd.Next(1, 81).ToString(), true).FirstOrDefault() as TextBox;
if (tb != null)
// change color, text, ect
答案 2 :(得分:0)
找到表单上TextBox
的所有控件:
var boxes = this.Controls.Cast<Control>().Where( x => x.GetType() == typeof( TextBox ) )
.Cast<TextBox>().ToList();
从上面找到的列表中选择一个随机的并对其执行某些操作。这里代码将Text
属性设置为Random Text
:
Random r = new Random();
int random = r.Next( boxes.Count() - 1);
boxes[ random ].Text = "Random Text";