[英]Trouble with C# and Combobox not loading list
我正在使用组合框构建列表,当从组合列表中选择客户端时,它将加载特定的URL。 问题是列表为空。
下面是代码,但是我看不到我所缺少的内容,但这可能是简单的疏忽,因为这是我第一次构建这样的组合框。
public partial class Form1 : Form
{
List<MyClient> clients;
public Form1()
{
InitializeComponent();
clients = new List<MyClient>();
clients.Add(new MyClient { ClientName = "Client 1", UrlAddress = @"http://www.google.com" });
BindBigClientsList();
}
private void BindBigClientsList()
{
BigClientsList.DataSource = clients;
BigClientsList.DisplayMember = "ClientName";
BigClientsList.ValueMember = "UrlAddress";
}
private void BigClientsList_SelectedIndexChanged(object sender, EventArgs e)
{
MyClient c = BigClientsList.SelectedItem as MyClient;
if (c != null)
{
string url = c.ClientName;
Process.Start(url);
}
}
}
class MyClient
{
public string ClientName { get; set; }
public string UrlAddress { get; set; }
}
您错过了最后一行: DataBind
private void BindBigClientsList()
{
BigClientsList.DataSource = ClientSize;
BigClientsList.DisplayMember = "ClientName";
BigClientsList.ValueMember = "UrlAddress";
BigClientsList.DataBind;
}
您的构造函数应如下所示
public Form1()
{
InitializeComponent();
List<MyClient> clients = new List<MyClient>();
clients.Add(new MyClient { ClientName = "Client 1", UrlAddress = @"http://www.google.com" });
foreach(MyClient client in clients)
{
BigClients.Items.Add(client);
}
}
这增加了两件事:
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