![](/img/trans.png)
[英]Can we create multiple events during runtime in C# for controls which are created during runtime
[英]How do edit controls that were created in C# during runtime?
因此,我有这段代码,还有一个名为AddNewButton的按钮,该按钮将StackPanel添加到已创建的称为MainStackPanel的StackPanel中,这是不相关的,但“ GroupPanel”具有子控件,例如“ GroupName”,“ GroupTextBox”和“ GroupEdit”。
现在,“ GroupEdit”按钮具有一个单击事件,该事件运行名为“ GroupEdit_Click”的空白,在该空白中,我使用Button GroupEdit1 = sender as Button;
现在,此方法有效,使我能够访问按钮属性并更改内容,但是我的问题是:如何访问其他控件,例如“ GroupPanel”,“ GroupName”和“ GroupTextBox”。 我将使用AddNewButton几次,因此当我访问单独的控件时,需要分别访问它们。
我试图摆脱尽可能多的不必要的代码。
private void AddNewButton_Click(object sender, RoutedEventArgs e)
{
StackPanel GroupPanel = new StackPanel();
TextBlock GroupName = new TextBlock();
GroupName.Text = "Group ";
TextBox GroupTextBox = new TextBox();
GroupTextBox.Visibility = Visibility.Collapsed;
Button GroupEdit = new Button();
GroupEdit.Content = "Edit Group";
GroupEdit.Click += new RoutedEventHandler(GroupEdit_Click);
GroupPanel.Children.Add(GroupName);
GroupPanel.Children.Add(GroupTextBox);
GroupPanel.Children.Add(GroupEdit);
}
private void GroupEdit_Click(object sender,RoutedEventArgs e)
{
Button GroupEdit1 = sender as Button;
GroupEdit1.Content = "Done";
//Now how do i access these controls?
GroupName.Visibility = Visibility.Collapsed;
GroupTextBox.Visibility = Visibility.Visible;
}
}
您可以维护动态添加的GroupEdit控件的私有列表,并为其分配编号的标签。
private List<TextBox> dynamicGroupEdits = new List<TextBox>();
private void AddNewButton_Click(object sender, RoutedEventArgs e)
{
...
dynamicGroupEdits.Add(GroupEdit);
GroupEdit.Tag = dynamicGroupEdits.Count;
GroupPanel.Tag = GroupEdit.Tag;
GroupTextBox.Tag = GroupEdit.Tag;
...
}
private void GroupEdit_Click(object sender,RoutedEventArgs e)
{
...
tag = GroupEdit1.Tag;
// Loop through all child controls and set visibility according to tag
for each (var c in LogicalTreeHelper.GetChildren(GroupEdit1.Parent)
{
if(c is TextBox && c.Tag == tag)
c.Visible =Visibility.Visible;
else if(c is TextBlock && c.Tag == tag)
c.Visibility = Visibility.Collapsed;
}
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.