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我有一个特殊的TextBox应该在Enter上验证。停止传播键盘事件到父窗体
在此验证上,如果已经定义了AcceptButton,则表单应该被提交。
在下面的代码我有两个文本框:一个正常的,和另外一个 - myTextBox - 用于验证本身上输入辅助(DoubleClick的形式一次看到它):
public partial class Form1 : Form
{
private TextBox TextBox1;
private MyTextBox MyTextBox1;
private Button OKButton;
public Form1()
{
InitializeComponent();
TextBox1 = new TextBox();
TextBox1.Parent = this;
TextBox1.Location = new Point(0, 50);
MyTextBox1 = new MyTextBox();
MyTextBox1.Parent = this;
MyTextBox1.Location = new Point(0, 100);
MyTextBox1.Visible = false;
OKButton = new Button();
OKButton.Parent = this;
OKButton.Location = new Point(0, 125);
OKButton.Click += new EventHandler(OKButton_Click);
this.AcceptButton = OKButton;
}
void OKButton_Click(object sender, EventArgs e)
{
if (MyTextBox1.Visible)
return;
Console.WriteLine("!!! OKButton_Click !!!");
}
protected override void OnMouseDoubleClick(MouseEventArgs e)
{
MyTextBox1.Visible = true;
base.OnMouseDoubleClick(e);
}
}
public class MyTextBox : TextBox
{
protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
{
if (keyData == Keys.Enter)
{
Console.WriteLine("!!! MyTextBox_Validation !!!");
this.Visible = false;
}
return base.ProcessCmdKey(ref msg, keyData);
}
}
“验证”的事实由myTextBox知名度反映,但是这并没有帮助,因为在OKBUtton_Click myTextBox1已不可见...
理想的情况下,myTextBox验证后,我想阻止Enter键的Mes在父窗体上的鼠尾草繁殖。可能吗?如果不是,我应该如何验证MyTextBox而不验证表单?
很好的说法,托尼 – serhio 2011-03-09 14:04:13