您好我正在尝试将WPF数据网格连接到Access数据库，但是当我尝试调用数据时，我无法获得任何更新和错误。
XML代码
<Window x:Class="SRT.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="627.49" Width="930.777">
<Grid Margin="0,0,-8,11">
<TabControl HorizontalAlignment="Left" Height="583" VerticalAlignment="Top" Width="921">
<TabItem Header="TabItem">
<Grid Background="#FFE5E5E5" Margin="0,0,6,0">
<ComboBox HorizontalAlignment="Left" Height="28" Margin="11,178,0,0" VerticalAlignment="Top" Width="128" Name="date"/>
<ComboBox HorizontalAlignment="Left" Height="28" Margin="146,178,0,0" VerticalAlignment="Top" Width="201" Name="Agent_Name"/>
<ComboBox HorizontalAlignment="Left" Height="28" Margin="358,178,0,0" VerticalAlignment="Top" Width="165" Name="Status"/>
<Button Content="Refresh" HorizontalAlignment="Left" Height="28" Margin="528,178,0,0" VerticalAlignment="Top" Width="110" x:Name="Refresh" Click="Refresh_Click"/>
<Button Content="Get Data" HorizontalAlignment="Left" Height="28" Margin="643,178,0,0" VerticalAlignment="Top" Width="110" x:Name="getdata" Click="getdata_Click"/>
<Label Content="Date" HorizontalAlignment="Left" Height="27" Margin="11,146,0,0" VerticalAlignment="Top" Width="128"/>
<Label Content="SRT Agent Name" HorizontalAlignment="Left" Height="27" Margin="146,146,0,0" VerticalAlignment="Top" Width="201"/>
<Label Content="Case Status" HorizontalAlignment="Left" Height="27" Margin="358,146,0,0" VerticalAlignment="Top" Width="165"/>
<Frame Content="Update" HorizontalAlignment="Left" Height="136" Margin="11,10,0,0" VerticalAlignment="Top" Width="743"/>
<TextBox HorizontalAlignment="Left" Height="30" Margin="25,79,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="97"/>
<ComboBox HorizontalAlignment="Left" Margin="127,79,0,0" VerticalAlignment="Top" Width="162" Height="30"/>
<ComboBox HorizontalAlignment="Left" Height="30" Margin="294,79,0,0" VerticalAlignment="Top" Width="121"/>
<Button Content="Update" HorizontalAlignment="Left" Height="30" Margin="420,79,0,0" VerticalAlignment="Top" Width="96"/>
<Label Content="ID Number" HorizontalAlignment="Left" Height="27" Margin="25,47,0,0" VerticalAlignment="Top" Width="97"/>
<Label Content="Updated Status" HorizontalAlignment="Left" Height="27" Margin="127,47,0,0" VerticalAlignment="Top" Width="162"/>
<Label Content="Callback Attempts" HorizontalAlignment="Left" Height="27" Margin="294,47,0,0" VerticalAlignment="Top" Width="121"/>
<TextBox HorizontalAlignment="Left" Height="27" Margin="125,114,0,0" TextWrapping="Wrap" Text="Add Database Path here" VerticalAlignment="Top" Width="391" Name="path"/>
<Label Content="Path" HorizontalAlignment="Left" Height="27" Margin="23,114,0,0" VerticalAlignment="Top" Width="97"/>
<DataGrid HorizontalAlignment="Left" Height="158" Margin="5,217,0,0" VerticalAlignment="Top" Width="890" Name="alldata" AutoGenerateColumns="True" SelectionChanged="alldata_SelectionChanged"/>
</Grid>
</TabItem>
<TabItem Header="TabItem">
<Grid Background="#FFE5E5E5"/>
</TabItem>
</TabControl>
</Grid>
C＃代码
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.OleDb;
using System.Data.Common;
namespace SRT
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
private void Refresh_Click(object sender, RoutedEventArgs e)
{
OleDbConnection con2 = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\\Users\\Sumeet\\Desktop\\Sitel Project\\Support_Tracker.accdb;Persist Security Info=False;");
OleDbCommand cmd2 = new OleDbCommand();
OleDbDataAdapter da2 = new OleDbDataAdapter();
DataTable dt2 = new DataTable();
String fselect2 = null;
fselect2 = "Select DISTINCT Date from SRT";
cmd2 = new OleDbCommand(fselect2, con2);
da2 = new OleDbDataAdapter(cmd2);
da2.Fill(dt2);
date.ItemsSource = dt2.DefaultView;
date.DisplayMemberPath = dt2.Columns["Date"].ToString();
con2.Close();
OleDbConnection con3 = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\\Users\\Sumeet\\Desktop\\Sitel Project\\Support_Tracker.accdb;Persist Security Info=False;");
OleDbCommand cmd3 = new OleDbCommand();
OleDbDataAdapter da3 = new OleDbDataAdapter();
DataTable dt3 = new DataTable();
String fselect3 = null;
fselect3 = "Select DISTINCT Agent_Name from SRT";
cmd3 = new OleDbCommand(fselect3, con3);
da3 = new OleDbDataAdapter(cmd3);
da3.Fill(dt3);
Agent_Name.ItemsSource = dt3.DefaultView;
Agent_Name.DisplayMemberPath = dt3.Columns["Agent_Name"].ToString();
con3.Close();
OleDbConnection con4 = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\\Users\\Sumeet\\Desktop\\Sitel Project\\Support_Tracker.accdb;Persist Security Info=False;");
OleDbCommand cmd4 = new OleDbCommand();
OleDbDataAdapter da4 = new OleDbDataAdapter();
DataTable dt4 = new DataTable();
String fselect4 = null;
fselect4 = "Select DISTINCT Status from SRT";
cmd4 = new OleDbCommand(fselect4, con4);
da4 = new OleDbDataAdapter(cmd4);
da4.Fill(dt4);
Status.ItemsSource = dt4.DefaultView;
Status.DisplayMemberPath = dt4.Columns["Status"].ToString();
con4.Close();
}
private void getdata_Click(object sender, RoutedEventArgs e)
{
OleDbConnection con1 = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\\Users\\Sumeet\\Desktop\\Sitel Project\\Support_Tracker.accdb;");
OleDbCommand cmd1 = new OleDbCommand();
OleDbDataAdapter da1 = new OleDbDataAdapter();
DataTable dt1 = new DataTable();
String fselect1 = null;
fselect1 = "Select * from Org";
cmd1 = new OleDbCommand(fselect1, con1);
da1 = new OleDbDataAdapter(cmd1);
da1.Fill(dt1);
alldata.DataContext = dt1.DefaultView;
}
private void alldata_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
}
}
}
它完美地完成了组合框，但没有数据网格不确定我在这里做错了，因为没有显示错误 请帮助
答案 0 :(得分：1)
我的第一个想法是：我将数据封装到实现INotification接口的对象中。然后将对象放在可观察的集合中。然后使用此集合作为数据源。