您好，
下面是一个连接SQL Server数据库的小例子，希望对你有用。
XAML 代码：
<Window x:Class="WpfSimpleDataGrid.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:dg="clr-namespace:Microsoft.Windows.Controls;assembly=WpfToolkit"
Width="400" Height="300"
WindowStartupLocation="CenterScreen"
Title="Window1" >
<Grid>
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
<RowDefinition />
<RowDefinition />
<RowDefinition />
<RowDefinition />
<RowDefinition />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<TextBlock Text="ID" Grid.Row="0" Grid.Column="0" />
<TextBlock Text="Name" Grid.Row="1" Grid.Column="0" />
<TextBox Name="insertIDTextBox" Grid.Row="0" Grid.Column="1"/>
<TextBox Name="insertNameTextBox" Grid.Row="1" Grid.Column="1"/>
<Button Click="OnInsertData" Grid.Row="2" Grid.Column="0" Grid.ColumnSpan="2"
Width="80" Height="30" Content="Insert Data" />
<TextBlock Text="Input ID" Grid.Row="3" Grid.Column="0" />
<TextBox Name="searchTextBox" Grid.Row="3" Grid.Column="1"/>
<Button Click="OnSearchData" Grid.Row="4" Grid.Column="0" Grid.ColumnSpan="2"
Width="80" Height="30" Content="Search Data" />
<dg:DataGrid Name="dataGrid" Grid.Row="5" Grid.Column="0" Grid.ColumnSpan="3" Grid.RowSpan="3" />
</Grid>
</Window>
后台代码：
using System;
using System.Windows;
using System.Data;
using System.Data.SqlClient;
namespace WpfSimpleDataGrid
{
public partial class Window1 : Window
{
public Window1()
{
InitializeComponent();
}
private void OnInsertData(object sender, RoutedEventArgs e)
{
SqlConnection conn = ConnectionHelper.GetConnection();
SqlCommand cmd = conn.CreateCommand();
cmd.CommandText = "insert into Category values(" + insertIDTextBox.Text.Trim() + ",'" + insertNameTextBox.Text.Trim() + "')";
try
{
conn.Open();
cmd.ExecuteNonQuery();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{
if (conn.State == ConnectionState.Open)
{
conn.Close();
}
}
}
private void OnSearchData(object sender, RoutedEventArgs e)
{
SqlConnection conn = ConnectionHelper.GetConnection();
SqlCommand cmd = conn.CreateCommand();
string strSearch = searchTextBox.Text.Trim();
if (strSearch == "")
{
cmd.CommandText = "select * from Category";
}
else
{
cmd.CommandText = "select * from Category where CategoryID=" + searchTextBox.Text.Trim();
}
SqlDataReader reader;
DataTable CategroyTable = new DataTable();
try
{
conn.Open();
reader = cmd.ExecuteReader();
CategroyTable.Load(reader);
dataGrid.ItemsSource = CategroyTable.DefaultView;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{
if (conn.State == ConnectionState.Open)
{
conn.Close();
}
}
}
}
public class ConnectionHelper
{
public static SqlConnection GetConnection()
{
string connectionStr = "Data Source=MICROSOFT-JIGUO;Initial Catalog=CompanyTestDB;Integrated Security=True";
SqlConnection conn = new SqlConnection(connectionStr);
return conn;
}
}
}
如果你还有其他不明白的地方，请继续回贴。
Jim Zhou -MSFT
