我正在开展一个c#运动项目,以发展我的技能和学习新事物。我已经创建了一个动态界面,其中包含一些控件..当表单加载时,它启动一个numericUpDown和一个Button。当用户在数字向上选择一个数字并单击该按钮时,它将生成尽可能多的文本框,具体取决于在numericUpDown上选择的数字,它还会在生成的文本框旁边生成一个删除按钮。我在用户点击删除按钮时删除文本框时遇到问题
这是我的代码:
//生成文本框和按钮
private void AssessmentButton_Click(object sender, EventArgs e)
{
int length = (int)this.NoAssesmentBoxlv4.Value;
for (int i = 0; i < length; i++)
{
textboxAssesmentName.Add(new TextBox());
var p = new System.Drawing.Point(110, 260 + i * 25);
(textboxAssesmentName[i] as TextBox).Location = p;
(textboxAssesmentName[i] as TextBox).Size = new System.Drawing.Size(183, 20);
this.Lv4Tab.Controls.Add(textboxAssesmentName[i] as TextBox);
buttoRemove.Add(new Button());
(buttoRemove[i] as Button).Location = new System.Drawing.Point(380, 260 + i * 25);
(buttoRemove[i] as Button).Text = @"x";
(buttoRemove[i] as Button).BackColor = Color.Red;
(buttoRemove[i] as Button).ForeColor = Color.White;
(buttoRemove[i] as Button).Size = new System.Drawing.Size(22, 23);
this.Lv4Tab.Controls.Add(buttoRemove[i] as Button);
(buttoRemove[i] as Button).Click += this.buttoRemove_click;
}
}
以下是删除按钮的点击:点击:(此方法无法编译)
private void buttoRemove_click(object sender, EventArgs e)
{
foreach (Object obj in textboxAssesmentName)
{
// THIS LINE DOES NOT COMPILE!!!
this.Controls.Remove(textboxAssesmentName.Remove);
}
}
任何想法都会非常感激
答案 0 :(得分:1)
尝试类似
的内容foreach (var control in textboxAssesmentName)
{
this.Controls.Remove(control);
}
您现有的代码没有任何意义。
另见
http://msdn.microsoft.com/en-us/library/82785s1h%28v=vs.80%29.aspx
答案 1 :(得分:0)
我建议您使用Tag
的{{1}}属性来存储与其关联的Button
。要将它放在代码中,请在循环中插入以下行:
TextBox
然后您的事件处理程序将如下所示:
(buttoRemove[i] as Control).Tag = textboxAssesmentName[i];
编辑:这是我编写代码的方式(不包括拼写错误)。
private void buttoRemove_click(object sender, EventArgs e)
{
this.Controls.Remove((sender as Control).Tag as Control);
}