好吧,第一个wpf程序运行不起来了....请解惑,谢谢!

[CTD]

打算加个DataGrid,然后显示点什么,出错了!是什么地方出问题了呢?

前台

<Window x:Class="jxc_w.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="650" Width="1024" VerticalAlignment="Center" WindowStartupLocation="CenterScreen">
    <Grid>
        <Button Content="退出" HorizontalAlignment="Left" Margin="555,562,0,0" VerticalAlignment="Top" Width="75" Click="Button_Click_1" RenderTransformOrigin="4.68,1.211" Name="bntExit"/>
        <Button Content="刷新" HorizontalAlignment="Left" Margin="344,562,0,0" VerticalAlignment="Top" Width="75" Name="bntRefresh"/>
        <DataGrid HorizontalAlignment="Left" Margin="10,10,0,0" VerticalAlignment="Top" Name="myDataGrid" AutoGenerateColumns="True"/>
        
    </Grid>
</Window>

台台

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Data;
using System.Data.SqlClient;

namespace jxc_w
{
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            getDate();
        }

        string SqlConnectStr = "Data Source=xxxxxxxx;Initial Catalog=xxx;Persist Security Info=True;User ID=sa;Password=xxxx";

        private void getDate()
        {
            using (SqlConnection sqlConn=new SqlConnection(SqlConnectStr))
            {
                using (SqlCommand sqlComm = new SqlCommand())
                {
                    sqlComm.CommandText = "SELECT TOP(20) 编码,名称,规格,产地,单位 FROM goodList WHERE SUBSTRING(编码,1,3)='101' AND 级别=3 ORDER BY dispOrder";
                    DataSet myDs = new DataSet();
                    SqlDataAdapter myAdapter = new SqlDataAdapter(sqlComm);
                    myAdapter.Fill(myDs);
                    this.myDataGrid.ItemsSource = myDs.Tables[0].DefaultView;
                }
            }
        }

        private void Button_Click_1(object sender, RoutedEventArgs e)
        {
            this.Close();
        }
    }
}

[bl_song]

this.myDataGrid.ItemsSource = myDs.Tables[0].DefaultView; 这句打上一个断点，调试一下

[51Crack]

<Grid>
  <Grid.RowDefinitions>
    <RowDefinition Height="Auto" />
    <RowDefinition Height="Auto" />
    <RowDefinition/>
  </Grid.RowDefinitions> 
  <Button Grid.Row="0" Content="退出" HorizontalAlignment="Left" Margin="10" VerticalAlignment="Top" Width="75" Click="Button_Click_1" RenderTransformOrigin="4.68,1.211" Name="bntExit"/>
  <Button Grid.Row="1" Content="刷新" HorizontalAlignment="Left" Margin="10" VerticalAlignment="Top" Width="75" Name="bntRefresh"/>
  <DataGrid Grid.Row="2" HorizontalAlignment="Left" Margin="10,10,0,0" VerticalAlignment="Top" Name="myDataGrid" AutoGenerateColumns="True"/>
</Grid>

或者把<Grid>改为<StackPanel>

[exception92]

把 查看详细信息 的错误 贴出来。

[zq1564171310]

 myAdapter.Fill(myDs);
 this.myDataGrid.ItemsSource = myDs.Tables[0].DefaultView;

注释这两句就可以了，前面操作数据库要检查一下，应该获取数据有问题

[侯大虎]

#4正解，具体原因你在看看