C# WPF后台代码动态添加控件

<UserControl x:Class="Caliburn.Micro.Hello.DynamicalView" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"  xmlns:d="http://schemas.microsoft.com/expression/blend/2008"  xmlns:local="clr-namespace:Caliburn.Micro.Hello"  xmlns:cal="http://www.caliburnproject.org" xmlns:dxlc="http://schemas.devexpress.com/winfx/2008/xaml/layoutcontrol" mc:Ignorable="d"  d:DesignHeight="450" d:DesignWidth="800"> <Grid> <Grid.RowDefinitions> <RowDefinition Height="1.5*" /> <RowDefinition Height="8.5*" /> Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="*" /> <ColumnDefinition Width="*" /> Grid.ColumnDefinitions> <StackPanel Orientation="Horizontal" VerticalAlignment="Center" Grid.Row="0" Grid.ColumnSpan="2"> <TextBox Width="500" Height="30" Margin="3" Text="{Binding FilePath}" FontSize="14"  FontStyle="Normal" IsReadOnly="True" /> <Button Content="..." Margin="3" MinWidth="50" cal:Message.Attach="[Event Click] = [Action SelectFile()]" /> StackPanel> <GroupBox Grid.Column="0" Grid.Row="1" Margin="3"> <GroupBox.Header> <dxlc:LayoutItem Label="Student" Foreground ="Green" /> GroupBox.Header> <dxlc:LayoutControl> <Grid HorizontalAlignment="Left" VerticalAlignment="Top" Grid.Row="0" cal:Message.Attach="[Event Loaded] = [Action StudentGridLoaded($source)]" /> dxlc:LayoutControl> GroupBox> <GroupBox Grid.Column="1" Grid.Row="1" Margin="3"> <GroupBox.Header> <dxlc:LayoutItem Label="Teacher" Foreground ="Blue" /> GroupBox.Header> <dxlc:LayoutControl> <Grid HorizontalAlignment="Left" VerticalAlignment="Top" Grid.Row="0" cal:Message.Attach="[Event Loaded] = [Action TeacherGridLoaded($source)]" /> dxlc:LayoutControl> GroupBox> Grid>UserControl>

xmlns:cal="http://www.caliburnproject.org"

using DevExpress.Xpf.Editors;using PropertyChanged;using System;using System.Collections.Generic;using System.IO;using System.Linq;using System.Threading;using System.Threading.Tasks;using System.Windows;using System.Windows.Controls;using System.Windows.Data;using System.Windows.Forms;using Binding = System.Windows.Data.Binding;using HorizontalAlignment = System.Windows.HorizontalAlignment;using Label = System.Windows.Controls.Label;
namespace Caliburn.Micro.Hello{ [AddINotifyPropertyChangedInterface] public class DynamicalViewModel : Screen, IViewModel { private readonly AutoResetEvent StudentGridLoad = new AutoResetEvent(false);
 private readonly AutoResetEvent TeacherGridLoad = new AutoResetEvent(false); public string FilePath { get; set; } = @"D:	est.txt"; public List PersonInfoList = new List(); public PersonInfo PersonInfo { get; set; } public DynamicalViewModel() { DisplayName = "DynamicalControls"; }
 public void DispalyReuslt() { Task.Run(() => { ParseData(); Execute.OnUIThread(() => { AddGridControl(); }); });
 }
 private void ParseData() { var lines = File.ReadAllLines(FilePath); foreach (string line in lines) { var strs = line.Split('：'); if (strs.Count() > 1) { var infos = strs[1].Split('，'); PersonInfoList.Add(new PersonInfoDTO() { InfoType = strs[0], PersonInfo = new PersonInfo() { Name = infos[0], Sex = infos[1], Age = Convert.ToInt32(infos[2]) } }); } } }

 public void SelectFile() { string defaultInputFolder = @"D:	est.txt"; OpenFileDialog fileDialog = new OpenFileDialog(); if (defaultInputFolder != ) { fileDialog.InitialDirectory = defaultInputFolder; }
 fileDialog.Multiselect = false;//该值确定是否可以选择多个文件 fileDialog.Title = "请选择ReportFile文件"; fileDialog.Filter = "文本文件(*.txt)|*.txt"; if (fileDialog.ShowDialog() == DialogResult.OK) { FilePath = fileDialog.FileName; } DispalyReuslt(); }
 private Grid StudentGrid { get; set; } private Grid TeacherGrid { get; set; } public void StudentGridLoaded(object sender) { StudentGrid = (Grid)sender; } public void TeacherGridLoaded(object sender) { TeacherGrid = (Grid)sender; }
 int studentRowIndex = 0; int studentColumnIndex = 0; int teacherRowIndex = 0; int teacherColumnIndex = 0; private void AddGridControl() { int StudentConut = 0; int TeacherCount = 0;
 foreach (var item in PersonInfoList) { if (item.InfoType == "老师") { TeacherCount++; } else { StudentConut++; } }
 StudentGrid.Children.Clear(); StudentGrid.ColumnDefinitions.Clear(); StudentGrid.RowDefinitions.Clear();
 TeacherGrid.Children.Clear(); TeacherGrid.ColumnDefinitions.Clear(); TeacherGrid.RowDefinitions.Clear();
 var gridColumns = 4; var successGridRows = Math.Ceiling(StudentConut / 2.0); var failGridRows = Math.Ceiling(TeacherCount / 2.0);
 //添加grid列 for (int i = 0; i < gridColumns; i++) { var successColumnDefinition = new ColumnDefinition(); StudentGrid.ColumnDefinitions.Add(successColumnDefinition); var failedColumnDefinition = new ColumnDefinition(); TeacherGrid.ColumnDefinitions.Add(failedColumnDefinition); }

 //添加grid行 for (int i = 0; i < successGridRows; i++) { var successRowDefinition = new RowDefinition(); StudentGrid.RowDefinitions.Add(successRowDefinition); successRowDefinition.Height = new GridLength(30, GridUnitType.Pixel);//绝对尺寸 }
 for (int i = 0; i <= failGridRows; i++) { var failedRowDefinition = new RowDefinition(); TeacherGrid.RowDefinitions.Add(failedRowDefinition); failedRowDefinition.Height = new GridLength(30, GridUnitType.Pixel);//绝对尺寸 }
 int rowIndex = 0; int columnIndex = 0; UIElement uIElement = new UIElement();
 foreach (var item in PersonInfoList) { if (item.InfoType == "学生") { if (studentColumnIndex / 4 == 1) { studentColumnIndex = 0; studentRowIndex++; } rowIndex = studentRowIndex; columnIndex = studentColumnIndex; } else { if (teacherColumnIndex / 4 == 1) { teacherColumnIndex = 0; teacherRowIndex++; } rowIndex = teacherRowIndex; columnIndex = teacherColumnIndex; }
 if (columnIndex % 2 == 0) { Label label = new Label(); label.HorizontalAlignment = HorizontalAlignment.Right; label.VerticalAlignment = VerticalAlignment.Center; label.Width = 100; label.Content = item.PersonInfo.Name; label.SetValue(Grid.RowProperty, rowIndex); label.SetValue(Grid.ColumnProperty, columnIndex);
 uIElement = label; if (item.InfoType == "学生") { StudentGrid.Children.Add(uIElement); studentColumnIndex++; columnIndex = studentColumnIndex; } else { TeacherGrid.Children.Add(uIElement); teacherColumnIndex++; columnIndex = teacherColumnIndex; } }
 TextEdit textBox = new TextEdit(); textBox.HorizontalAlignment = HorizontalAlignment.Left; textBox.VerticalAlignment = VerticalAlignment.Center; textBox.Name = item.PersonInfo.Name; textBox.Width = 100; textBox.Height = 25; textBox.SetValue(Grid.RowProperty, rowIndex); textBox.SetValue(Grid.ColumnProperty, columnIndex);
 var path = item.PersonInfo.GetType().GetProperty("Age"); Binding binding = new Binding() { Source = item.PersonInfo, Path = new PropertyPath(path), Mode = BindingMode.TwoWay, UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged }; textBox.SetBinding(TextEdit.TextProperty, binding); uIElement = textBox;

 if (item.InfoType == "学生") { StudentGrid.Children.Add(uIElement); studentColumnIndex++; columnIndex = studentColumnIndex; } else { TeacherGrid.Children.Add(uIElement); teacherColumnIndex++; columnIndex = teacherColumnIndex; } } }
 }}

public class PersonInfo { public string Name { get; set; } public int Age { get; set; } public string Sex { get; set; }
 public override string ToString() { string report = $"[Name] = [{Name}],[Age] = [{Age}],[Sex] = [{Sex}]"; return report; }
 } public class PersonInfoEven : PersonInfo {
 }
 public class PersonInfoDTO { public string InfoType { get; set; } public PersonInfo PersonInfo { get; set; } }

 Execute.OnUIThread(() => { });

 var successColumnDefinition = new ColumnDefinition();  StudentGrid.ColumnDefinitions.Add(successColumnDefinition);

 var successRowDefinition = new RowDefinition(); StudentGrid.RowDefinitions.Add(successRowDefinition);

 TextEdit textBox = new TextEdit(); textBox.HorizontalAlignment = HorizontalAlignment.Left; textBox.VerticalAlignment = VerticalAlignment.Center; textBox.Name = item.PersonInfo.Name; textBox.Width = 100; textBox.Height = 25; textBox.SetValue(Grid.RowProperty, rowIndex); textBox.SetValue(Grid.ColumnProperty, columnIndex);
 var path = item.PersonInfo.GetType().GetProperty("Age"); Binding binding = new Binding() { Source = item.PersonInfo, Path = new PropertyPath(path), Mode = BindingMode.TwoWay, UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged }; textBox.SetBinding(TextEdit.TextProperty, binding); uIElement = textBox; TeacherGrid.Children.Add(uIElement);

foreach (UIElement uiElement in failedParsedGrid.Children) { if (uiElement is TextEdit) { TextEdit textBox = uiElement as TextEdit; switch (textBox.Name) { //todo } } }

 foreach (PropertyInfo info in PersonInfo.GetType().GetProperties())
 {
 var itemValue = info.GetValue(PersonInfo);
 // TO DO 
 }