如何在WPF中将数据从数据库显示到ListView C＃ [英] How to display data from database to ListView in WPF C#

问题描述

我正在使用WCF应用程序作为我的主机，在这里我保留我的显示数据，添加数据等方法，我有WPF应用程序作为我的客户端，我使用代码来显示从数据库到我的ListView的数据。

这是我的代码

  ServiceReference1.ImojWCFServiceClient client = new ServiceReference1.ImojWCFServiceClient（）; 
 listView1.Items.Clear（）; 
 var userList = client.getUsers（）; 
 foreach（userList中的用户名）
 {
 ListViewItem listOfUsers; 
 string [] list = new string [3]; 
 list [0] = user.UserID.ToString（）; 
 list [1] = user.Name; 
 list [2] = user.LastName; 
 listOfUsers = new ListViewItem（list）; 
 listView1.Items.Add（listOfUsers）; 
} 
  

这是我获得的错误

有人可以帮忙我修改这段代码？

任何帮助都不胜感激！

解决方案

如果您的 getUsers 方法返回列表，数组或类似方法，则可以将ListView的ItemsSource设置为 userList 。例如：

  ServiceReference1.ImojWCFServiceClient client = new ServiceReference1.ImojWCFServiceClient（）; 
 listView1.Items.Clear（）; 
 var userList = client.getUsers（）; 
 listView1.ItemsSource = userList; 
  

如果不起作用，在设置ItemsSource

$之前将userList转换为ObservableCollection b
$ b

您的Xaml可能看起来像这样...

 < ListView> 
< ListView.View> 
< GridView> 
< GridViewColumn Header =IDDisplayMemberBinding ={Binding UserID}/> 
< GridViewColumn Header =NameDisplayMemberBinding ={Binding Name}/> 
< GridViewColumn Header =Last NameDisplayMemberBinding ={Binding LastName}/> 
< / GridView> 
< /ListView.View> 
< / ListView> 
  

I'm trying to display data from my Entitity Framework database to my ListView in my WPF C# application.

I'm using WCF app as my host, where I keep my methods for displaying data, adding data, etc., and I have WPF app as my client, where I use the code to display data from database to my ListView.

This is my code

ServiceReference1.ImojWCFServiceClient client = new ServiceReference1.ImojWCFServiceClient();
listView1.Items.Clear();
var userList = client.getUsers();
foreach (var user in userList)
{
   ListViewItem listOfUsers;
   string[] list = new string[3];
   list[0] = user.UserID.ToString();
   list[1] = user.Name;
   list[2] = user.LastName;
   listOfUsers = new ListViewItem(list);
   listView1.Items.Add(listOfUsers);
}

This is the error that I get

Can somebody help me fix this code?

Any help is appreciated!

解决方案

If your getUsers method returns a list, array, or similar, you could simply set the ItemsSource of the ListView to userList. For example:

ServiceReference1.ImojWCFServiceClient client = new ServiceReference1.ImojWCFServiceClient();
listView1.Items.Clear();
var userList = client.getUsers();
listView1.ItemsSource = userList;

If that doesn't work, convert userList to an ObservableCollection before setting the ItemsSource

Your Xaml might look like this...

<ListView>
    <ListView.View>
        <GridView>
            <GridViewColumn Header="ID" DisplayMemberBinding="{Binding UserID}"/>
            <GridViewColumn Header="Name" DisplayMemberBinding="{Binding Name}"/>
            <GridViewColumn Header="Last Name" DisplayMemberBinding="{Binding LastName}"/>
        </GridView>
    </ListView.View>
</ListView>

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