如何将字符串转换为控件？

Question

我string MyText持有"L1"

我有标签控制,他的名字是"L1"

有没有办法用MyText读取标签L1？

就像是: TMT = MyText.Text

要么: TMT = ((Control)MyText.ToString()).Text;

提前致谢

Answer 1

查找具有指定名称的控件：

var arr = this.Controls.Where(c => c.Name == "Name");
var c = arr.FirstOrDefault();

或在指定类型的控件内搜索：

var arr = this.Controls.OfType<Label>();
var c = arr.FirstOrDefault();

编辑：

如果您有一系列控件名称，您可以找到它们：

var names = new[] { "C1", "C2", "C3" };

// search for specified names only within textboxes
var controls = this.Controls
    .OfType<TextBox>()
    .Where(c => names.Contains(c.Name));

// put the search result into a Dictionary<TextBox, string>
var dic = controls.ToDictionary(k => k, v => v.Text); 

（以上所有内容都需要.NET 3.5）

如果您没有，您可以执行以下操作：

Control[] controls = this.Controls.Find("MyControl1");
if(controls.Lenght == 1) // 0 means not found, more - there are several controls with the same name
{
    TextBox control = controls[0] as TextBox;
    if(control != null)
    {
        control.Text = "Hello";
    }
}