基于WPF实现自定义弹窗输入功能

功能介绍：

本文主要介绍了如何使用wpF实现自定义弹窗输入效果，整体采用了Grid和DockPanel混合布局，顶部为输入控制区,有文本框、四个功能按钮(OK/Del/Clear/Cancel)和一个大小写复选框；底部右侧为3x4数字键盘布局,包含数字0-9按钮。下面我们就来看看具体实现代码吧

完整代码如下：

1.前端实现

 <Grid>
     <Grid.RowDefinitions>
         <RowDefinition Height="60" />
         <RowDefinition Height="*" />
     </Grid.RowDefinitions>

     <Border
         Grid.Row="0"
         BorderBrush="WhiteSmoke"
         BorderThickness="0.1">
         <DockPanel Margin="5,0,0,0">
             <WrapPanel
                 Width="380"
                 VerticalAlignment="Center"
                 DockPanel.Dock="Right">

                 <Button
                     x:Name="Button_OK"
                     Margin="php5"
                     Click="Button_OK_Click"
                     Content="OK"
                     Style="{DynamicResource btn-primary}" />
                 <Button
                     x:Name="Button_Del"
                     Margin="5"
                     Click="Button_Del_Click"
                     Content="Del"
                     Style="{DynamicResource btn-primary}" />
                 <Button
                     x:Name="Button_Clear"
                     Margin="5"
                     Click="Button_Clear_Click"
                     Content="Clear"
                     Stylejs="{DynamicResource btn-primary}" />
                 <Button
                     x:Name="Button_Cancel"
                     Margin="5"
                     Click="Button_Cancel_Click"
                     Content="Cancel"
                     Style="{DynamicResource btn-primary}" />
                 <CheckBox
                     x:Name="CheckBox_Case"
                     Margin="20,5,5,5"
                     Checked="CheckBox_Case_Checked"
                     Content="Case"
                     FontSize="18"
                     Foreground="WhiteSmoke"
                     Style="{DynamicResource CheckBox_BoxStyle}"
                     Unchecked="CheckBox_Case_Unchecked" />
             </WrapPanel>
             <DockPanel VerticalAlignment="Center">
                 <Label
                     VerticalContentAlignment="Center"
                     Content="Input:"
                     FontSize="25"
                     Foreground="{DynamicResource Skin-TextColor}" />
                 <TextBox
                     x:Name="TextBox_Value"
                     Margin="5,0,0,0"
                     FontSize="20"
                     InputMethod.IsInputMethodEnabled="False" />
             </DockPanel>
         </DockPanel>
     </Border>

     <Border Grid.Row="1">
         <DockPanel>

             <!--  数字  -->
             <Border
                 Width="200"
                 BorderBrush="WhiteSmoke"
                 BorderThickness="1,0.2,0.2,0.2"
                 DockPanel.Dock="Right">
                 <Grid>
                     <Grid.RowDefinitions>
                         <RowDefinition />
                         <RowDefinition />
                         <RowDefinition />
                         <RowDefinition />
                     </Grid.RowDefinitions>
                     <Grid.ColumnDefinitions>
                         <ColumnDefinition />
                         <ColumnDefinition />
                         <ColumnDefinition />

                     </Grid.ColumnDefinitions>

                     <Button
                         Grid.Row="0"
                         Grid.Column="0"
                         Click="Button_Click"
                         Content="7"
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         Grid.Row="0"
                         Grid.Column="1"
                         Click="Button_Click"
                         Content="8"
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         Grid.Row="0"
                         Grid.Column="2"
                         Click="Button_Click"
                         Content="9"
                         Style="{DynamicResource ButtonSizeAdaptive}" />

                     <Button
                         Grid.Row="1"
                         Grid.Column="0"
                         Click="Button_Click"
                         Content="4"
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         Grid.Row="1"
                         Grid.Column="1"
                         Click="Button_Click"
                         Content="5"
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         Grid.Ro编程w="1"
                         Grid.Column="2"
                         Click="Button_Click"
                         Content="6"
                         Style="{DynamicResource ButtonSizeAdaptive}" />

                     <Button
                         Grid.Row="2"
                         Grid.Column="0"
                         Click="Button_Click"
                         Content="1"
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         Grid.Row="2"
                         Grid.Column="1"
                         Click="Button_Click"
                         Content="2"
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         Grid.Row="2"
                         Grid.Column="2"
                         Click="Button_Click"
                         Content="3"
                         Style="{DynamicResource ButtonSizeAdaptive}" />

                     <Button
                         Grid.Row="3"
                         Grid.Column="0"
                         Click="Button_Click"
                         Content="0"
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         Grid.Row="3"
                         Grid.Column="1"
                         Click="Button_Click"
                         Content="."
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         Grid.Row="3"
                         Grid.Column="2"
                         Click="Button_Click"
                         Content="-"
                         Style="{DynamicResource ButtonSizeAdaptive}" />

                 </Grid>
             </Border>

             <!--  字母  -->
             <Border BorderBrush="WhiteSmoke" BorderThickness="0.2,0.2,1,0.2">
                 <Grid x:Name="UniformGrid_Letter">
                     <Grid.RowDefinitions>
                         <RowDefinition />
                         <RowDefinition />
                         <RowDefinition />
                         <RowDefinition />
                     </Grid.RowDefinitions>
                     <Grid.ColumnDefinitions>
                         <ColumnDefinition />
                         <ColumnDefinition />
                         <ColumnDefinition />
                         <ColumnDefinition />
                         <ColumnDefinition />
                         <ColumnDefinition />
                         <ColumnDefinition />
                     </Grid.ColumnDefinitions>

                     <!--  abcdefg  -->
                     <Button
                         x:Name="Button_Letter_1"
                         Grid.Row="0"
                         Grid.Column="0"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_2"
                         Grid.Row="0"
                         Grid.Column="1"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_3"
                         Grid.Row="0"
                         Grid.Column="2"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_4"
                         Grid.Row="0"
                         Grid.Column="3"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_5"
                         Grid.Row="0"
                         Grid.Column="4"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_6"
                         Grid.Row="0"
                         Grid.Column="5"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_7"
                         Grid.Row="0"
                         Grid.Column="6"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />

                     <!--  hijklmn  -->
                     <Button
                         x:Name="Button_Letter_8"
                         Grid.Row="1"
                         Grid.Column="0"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_9"
                         Grid.Row="1"
                         Grid.Column="1"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_10"
                         Grid.Row="1"
                         Grid.Column="2"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_11"
                         Grid.Row="1"
                         Grid.Column="3"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_12"
                         Grid.Row="1"
                         Grid.Column="4"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_13"
                         Grid.Row="1"
                         Grid.Column="5"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_14"
                         Grid.Row="1"
                         Grid.Column="6"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />

                     <!--  opqrstu  -->
                     <Button
                         x:Name="Button_Letter_15"
                         Grid.Row="2"
                         Grid.Column="0"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_16"
                         Grid.Row="2"
                         Grid.Column="1"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_17"
                         Grid.Row="2"
                         Grid.Column="2"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_18"
                         Grid.Row="2"
                         Grid.Column="3"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_19"
                         Grid.Row="2VRJHLNbrL"
                         Grid.Column="4"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_20"
                         Grid.Row="2"
                         Grid.Column="5"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_21"
                         Grid.Row="2"
                         Grid.Column="6"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />

                     <!--  vwxyz-@  -->
                     <Button
                         x:Name="Button_Letter_22"
                         Grid.Row="3"
                         Grid.Column="0"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_23"
                         Grid.Row="3"
                         Grid.Column="1"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_24"
                         Grid.Row="3"
                         Grid.Column="2"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_25"
                         Grid.Row="3"
                         Grid.Column="3"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_26"
                         Grid.Row="3"
                         Grid.Column="4"
                         Click="Button_Letter_Click"
                         Content=""
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_27"
                         Grid.Row="3"
                         Grid.Column="5"
                         Click="Button_Letter_Click"
                         jsContent="/"
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                     <Button
                         x:Name="Button_Letter_28"
                         Grid.Row="3"
                         Grid.Column="6"
                         Click="Button_Letter_Click"
                         Content="@"
                         Style="{DynamicResource ButtonSizeAdaptive}" />
                 </Grid>
             </Border>
         </DockPanel>
     </Border>
 </Grid>

2.后端实现

/// <summary>
/// Keyboardwindow.xaml 的交互逻辑
/// </summary>
public partial class KeyboardWindow : Window
{
    List<string> letterList = new List<string>();
    public KeyboardWindow(string value = "")
    {
        InitializeComponent();
        Init(value);
    }

    private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
    {

    }
    /// <summary>
    /// 初始化
    /// </summary>
    private void Init(string value)
    {
        try
        {
            value = value ?? "";
            TextBox_Value.Text = value;
            TextBox_Value.SelectionStart = value.Length;
            TextBox_Value.Focus();
            string[] ss = new string[26] { "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z" };
            letterList= ss.ToList();
            Load();
        }
        catch
        {

        }
    }
    private void Load(bool isCase = false)
    {
        try
        {
            for (int i = 0; i < letterList.Count; i++)
            {
                string name = string.Format("Button_Letter_{0}", i + 1);
                Button but = this.UniformGrid_Letter.FindName(name) as Button;
                if (isCase)
                {
                    but.Content = letterList[i].ToUpper();
                }
                else
                {
                    but.Content = letterList[i].ToLower();
                }
            }
        }
        catch
        {

        }
    }
    #region 值输入
    /// <summary>
    /// 清空
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void Button_Clear_Click(object sender, RoutedEventArgs e)
    {
        TextBox_Value.Text = string.Empty;
    }
    /// <summary>
    /// 删除
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void Button_Del_Click(object sender, RoutedEventArgs e)
    {
        try
        {
            if (TextBox_Value.Text.Trim().Length > 0)
            {
                TextBox_Value.Text = TextBox_Value.Text.Substring(0, TextBox_Value.Text.Trim().Length - 1);
            }
        }
        catch
        {

        }
    }
    /// <summary>
    /// 取消
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void Button_Cancel_Click(object sender, RoutedEventArgs e)
    {
        this.DialogResult = false;
        this.Close();
    }
    /// <summary>
    /// 确定
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void Button_OK_Click(object sender, RoutedEventArgs e)
    {
        try
        {
            this.DialogResult = true;
            this.Close();
        }
        catch
        {

        }
    }
    #endregion
    /// <summary>
    /// 输入值
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void Button_Click(object sender, RoutedEventArgs e)
    {
        try
        {
            Button but = sender as Button;
            string value = but.Content.ToString();
            //TextBox_Value.Text += value;
            int cursorPos = TextBox_Value.SelectionStart;
            TextBox_Value.Text = TextBox_Value.Text.Insert(cursorPos, value);
            TextBox_Value.SelectionStart = cursorPos + value.Length;
            TextBox_Value.Focus();
        }
        catch
        {

        }
    }
    /// <summary>
    /// 返回值
    /// </summary>
    /// <returns></returns>
    public string GetValue()
    {
        return TextBox_Value.Text;
    }
    /// <summary>
    /// 字母输入
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void Button_Letter_Click(object sender, RoutedEventArgs e)
    {
        try
        {
            Button but = sender as Button;
            string value = but.Content.ToString();
            //TextBox_Value.Text += value;
            int cursorPos = TextBox_Value.SelectionStart;
            TextBox_Value.Text = TextBox_Value.Text.Insert(cursorPos, value);
            TextBox_Value.SelectionStart = cursorPos + value.Length;
            TextBox_Value.Focus();
        }
        catch
        {

        }
    }
    /// <summary>
    /// 选中大写
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void CheckBox_Case_Checked(object sender, RoutedEventArgs e)
    {
        Load(true);
    }
    /// <summary>
    /// 小写
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void CheckBox_Case_Unchecked(object sender, RoutedEventArgs e)
    {
        Load(false);
    }
}

3.自定义Button样式

 <Style x:Key="ButtonSizeAdaptive" TargetType="Button">
     <Setter Property="VerticalContentAlignment" Value="Center" />
     <Setter Property="VerticalAlignment" Value="Stretch" />
     <Setter Property="HorizontalAlignment" Value="Stretch" />
     <Setter Property="HorizontalContentAlignment" Value="Center" />
     <Setter Property="Height" Value="Auto" />
     <Setter Property="Width" Value="Auto" />
     <Setter Property="FontSize" Value="30" />
     <Setter Property="FontWeight" Value="Bold" />
 </Style>

4.效果

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