Question

我创建了以下用户控件： - TextBlock：包含要插入的路径的描述 - TextBox：包含目录的名称 - 按钮：允许您在PC中搜索目录并将其放在文本框中

  public partial class TextBrowse : System.Windows.Controls.UserControl, INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
protected void OnPropertyChanged(string propertyName)
{
  if (PropertyChanged != null)
    PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}

public static readonly DependencyProperty SetName =
  DependencyProperty.Register("BlockName", typeof(string), typeof(TextBrowse),
  new PropertyMetadata(0, new PropertyChangedCallback(
  (obj, chng) =>
  {
    (obj as TextBrowse).BlockName = (string)chng.NewValue;
  }
  ))); 
}
public string BlockName
{
  get { return (string)GetValue(SetName); }
  set { SetValue(SetName, value); }
}
private Type _T;
public Type T
{
  set { _T = value; }
  get { return _T; }
}
public enum Type { File, Folder }
public TextBrowse()
{
  InitializeComponent(); 
  if (System.ComponentModel.DesignerProperties.GetIsInDesignMode(this))
    return;
}
private void CButton_Click(object sender, RoutedEventArgs e)
{
  if (_T == Type.File)
  {
    OpenFileDialog ofd = new OpenFileDialog();
    if (ofd.ShowDialog() == DialogResult.OK)
      this.DirectoryName = ofd.FileName;
  }
  else
  {
    FolderBrowserDialog fbd = new FolderBrowserDialog();
    if (fbd.ShowDialog() == DialogResult.OK)
      CTextbox.Text = fbd.SelectedPath;
  }
}
public string DirectoryName
{
  get
  {
    return (string)this.GetValue(DirectoryNameProperty);
  }
  set
  {
    this.SetValue(DirectoryNameProperty, value);
  }
}
public static readonly DependencyProperty DirectoryNameProperty = DependencyProperty.Register(
  "TextName", typeof(string), typeof(TextBrowse), new PropertyMetadata(""));}

这是XAML代码

<UserControl x:Class="XXX.TextBrowse"
         x:Name="TB"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<Grid>
<Grid.ColumnDefinitions>
  <ColumnDefinition Width="Auto"/>
  <ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
  <Grid.RowDefinitions>
  <RowDefinition Height="Auto"/>
  <RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<TextBlock Text="{Binding Path=DirectoryName, ElementName=TB, Mode=TwoWay}" Name="CTextBlock" Margin="4" Grid.Column ="0" Grid.Row="0"/> 
<Button Name="CButton" Margin="4" Grid.Column = "1" Grid.Row="1" Content="Browse" Click="CButton_Click" />
<TextBox Name="CTextbox" Margin="4" Grid.Column = "0" Grid.Row="1"/>

我想从窗口那样称呼它

    xmlns:custom ="clr-namespace:XXX"
Height="300" Width="300">
<Grid>
   <custom:TextBrowse BlockName="Name of TextBlock"/>
</Grid>

结果是动态创建用户控件。 TextBlock的名称是在BlockName中输入的值当通过按钮选择路径时，将在texbox中插入。

正如我所做的那样，我没有工作最好的关注

Answer 1

你应该改变这个。

public partial class TextBrowse : UserControl
{

public static readonly DependencyProperty SetName =DependencyProperty.Register("BlockName", typeof(string), typeof(TextBrowse),new PropertyMetadata(null); 
public string BlockName
{
   get { return (string)GetValue(SetName); }
   set { SetValue(SetName, value); }
}
private Type _T;
public Type T
{
   set { _T = value; }
   get { return _T; }
}
public enum Type { File, Folder }
public TextBrowse()
{
   InitializeComponent();
}
private void CButton_Click(object sender, RoutedEventArgs e)
{
   if (_T == Type.File)
   {
          OpenFileDialog ofd = new OpenFileDialog();
          if (ofd.ShowDialog() == DialogResult.OK)
             this.DirectoryName = ofd.FileName;
    }
  else
  {
    FolderBrowserDialog fbd = new FolderBrowserDialog();
    if (fbd.ShowDialog() == DialogResult.OK)
        CTextbox.Text = fbd.SelectedPath;
   }
}
public string DirectoryName
{
    get
    {
       return (string)this.GetValue(DirectoryNameProperty);
    }
    set
    {
       this.SetValue(DirectoryNameProperty, value);
    }
}
public static readonly DependencyProperty DirectoryNameProperty =DependencyProperty.Register("TextName", typeof(string), typeof(TextBrowse), new PropertyMetadata(""));}

使用Textbox，TextBlock和Button进行C＃WPF用户控制

1 个答案: