SelectedItem.Text always empty

[Sebastian]

This is how I populate my ListView:

 

List<Users> ListUsers = (List<Users>)FormData.Resp;

lv.Items.Clear();

foreach (var User in Users)
{
                    ListViewDataItem ListViewDataItem = new ListViewDataItem();
                    lv.Items.Add(ListViewDataItem);

                    ListViewDataItem[0] = User.ID.ToString();
                    ListViewDataItem[1] = User.BenutzerID;
                    ListViewDataItem[2] = User.Nachname;
                    ListViewDataItem[3] = User.Vorname;
                    ListViewDataItem[4] = User.EMailAdresse;
}

 

After selecting Items, the "Text" property of CurrentItem, SelectedItem or SelectedItems[0] is always empty. I tried also to get the Text by "lv.Items[lv.SelectedIndex].Text", but where is also the text property empty. But the SelectedIndex is correct.

[Sebastian]

I'm using DetailsView. So is where something special?

[Dess | Tech Support Engineer, Principal]

Hello, Sebastian, 

When you use ListViewType.DetailsView, note that it is necessary to add columns in the RadListView.Columns collection before adding items. Additional information is available in the following help article: https://docs.telerik.com/devtools/winforms/listview/populating-with-data/unbound-mode

Here is a sample code snippet which result is illustrate din the below screenshot: 

public RadForm1()
{
    InitializeComponent();

    this.radListView1.ViewType = ListViewType.DetailsView;
    for (int i = 0; i < 5; i++)
    {
        this.radListView1.Columns.Add("Col" + i);
    }

    List<User> ListUsers = new List<User>();

    for (int i = 0; i < 5; i++)
    {
        ListUsers.Add(new User(i,i,"Name" + i,"Last" + i,"email" + i));
    }
    foreach (var User in ListUsers)
    {
        ListViewDataItem ListViewDataItem = new ListViewDataItem();
        this.radListView1.Items.Add(ListViewDataItem);

        ListViewDataItem[0] = User.ID.ToString();
        ListViewDataItem[1] = User.BenutzerID;
        ListViewDataItem[2] = User.Nachname;
        ListViewDataItem[3] = User.Vorname;
        ListViewDataItem[4] = User.EMailAdresse;
    }
}

public class User
{
    public int ID { get; set; }

    public int BenutzerID { get; set; }

    public string Nachname { get; set; }

    public string Vorname { get; set; }

    public string EMailAdresse { get; set; }

    public User(int iD, int benutzerID, string nachname, string vorname, string eMailAdresse)
    {
        this.ID = iD;
        this.BenutzerID = benutzerID;
        this.Nachname = nachname;
        this.Vorname = vorname;
        this.EMailAdresse = eMailAdresse;
    }
}

I hope this information helps.

Regards,
Dess
Progress Telerik

[Sebastian]

Thanks for you answer. Display the data is not the problem. By the way, I added the columns at the designer before. The problem is reading the selected text.

[Dess | Tech Support Engineer, Principal]

Hello, Sebastian, 

The Text property of the ListViewDataItem depends on the applied RadListView.DisplayMember. However,when using ListViewType.DetailsView, it is appropriate to extract the desired value directly from the cell. Here is demonstrated a sample code snippet: 

private void radButton1_Click(object sender, EventArgs e)
{
    Console.WriteLine(this.radListView1.SelectedItem["Col2"]);
}

Regards,
Dess
Progress Telerik

[Sebastian]

[...] .SelectedItem[0] [...] worked for me. Thanks :)