C# populate a textbox from listbox taken from JSON file data-CodePudding

I have a JSON file from my local folder:

Shawn Milke.json

{
  "FirstName": "Shawn",
  "LastName": "Milke",
  "Email": "[email protected]",
  "TeamName": "Shawn Milke",
  "Password": "shawn123",
  "IsActive": "Yes",
  "UserId": 100
}

Here's the code in populating the listbox from JSON file:

private void ShowListViewNew()
{
    List<UserAccount> userAccounts = new List<UserAccount>();

    var dir = Path.GetDirectoryName(Assembly.GetEntryAssembly().Location);
    var outputDir = Path.Combine(dir, "Output");

    foreach (var file in Directory.GetFiles(outputDir, "*.json"))
    {
        var text = File.ReadAllText(file);
        var model = JsonConvert.DeserializeObject<UserAccount>(text);
        userAccounts.Add(model);
    }
    listBoxUsers.DataSource = userAccounts;
}

And here's also my code in populating the textboxes from the listbox selected:

private void listBoxUsers_SelectedIndexChanged(object sender, EventArgs e)
{
    var model = (UserAccount)listBoxUsers.SelectedItem;
    txtFirstName.Text = model.FirstName;
    txtLastName.Text = model.LastName;
    txtEmail.Text = model.Email;
    txtTeamName.Text = model.TeamName;
    txtPassword.Text = model.Password;
    if (model.IsActive== "Yes")
    {
        chkIsActive.Checked = true;
    }
    else
    {
        chkIsActive.Checked = false;
    }
    txtUserId.Text = model.UserId;
}

Now my main problem is I want to know how I can convert it from int to string in this line of code

txtUserId.Text = model.UserId;

Because I usually do it this way:

UserId = int.Parse(txtUserId.Text)

Since now it's changed, I'm not sure on how I can convert it from int to string. Can someone help? Thanks!

CodePudding user response：

There are few ways to do this.

1-) A Simple static method - or you may prefer extension method- can be a proper way of this for the future usings.

public static string ConvertIntToString (int TheInt32)
{
 return $"{TheInt32}";
}

Usage:

txtUserId.Text = ConvertIntToString(model.UserId);

2-) Or Simply Convert inline

txtUserId.Text = model.UserId.ToString();

txtUserId.Text = ""   model.UserId;

txtUserId.Text = $"{model.UserId}";

All usage types are valid. As a developer, This will be your choice with depending of which C# version you choosen to use in your project.