Question

— EDIT —

Worth to point out. While having a problem with different homework problem I see than I am able to use separate objects as an entry (which I probably should do). This would make working on my final problem much easier. This is a problem that might be usefull for me.

I am trying to display data to text box using foreach loop. The data should be displayed coresponding to the selection of combo box. For example if I want to display PC I should see only UserName and Password and if I add another entry for example WebSite I should see previous entry in it’s format and new entry with fields URL, Username, and Password. I have tried IF-statement in my previous question but didn’t seem to work properly.

            StringBuilder sb = new StringBuilder();
            foreach (AddEntry list in addedEntry)
            {
                sb.AppendLine();
                sb.AppendLine("URL: " + list.URL);
                sb.AppendLine("Software Name: " + list.SoftwareName);
                sb.AppendLine("Serial Code: " + list.SerialCode);
                sb.AppendLine("User Name: " + list.UserName);
                sb.AppendLine("Password: " + list.Password);
                sb.AppendLine();
            }

            mainWindow.ChangeTextBox = sb.ToString();

Regards.

Answer 1

StringBuilder sb = new StringBuilder();
foreach (AddEntry list in addedEntry)
{
    sb.AppendLine();
    if (!string.IsNullOrEmpty(list.URL))
    sb.AppendLine("URL: " + list.URL);
    if (!string.IsNullOrEmpty(list.SoftwareName))
    sb.AppendLine("Software Name: " + list.SoftwareName);
    if (!string.IsNullOrEmpty(list.SerialCode))
    sb.AppendLine("Serial Code: " + list.SerialCode);
    if (!string.IsNullOrEmpty(list.UserName))
    sb.AppendLine("User Name: " + list.UserName);
    if (!string.IsNullOrEmpty(list.Password))
    sb.AppendLine("Password: " + list.Password);
    sb.AppendLine();
}

mainWindow.ChangeTextBox = sb.ToString();

2nd Option

Add following method to AddEntry class

  public override string ToString() 
  {
    StringBuilder sb = new StringBuilder();
    sb.AppendLine();
    if (!string.IsNullOrEmpty(this.URL))
    sb.AppendLine("URL: " + list.URL);
    if (!string.IsNullOrEmpty(this.SoftwareName))
    sb.AppendLine("Software Name: " + this.SoftwareName);
    if (!string.IsNullOrEmpty(this.SerialCode))
    sb.AppendLine("Serial Code: " + this.SerialCode);
    if (!string.IsNullOrEmpty(this.UserName))
    sb.AppendLine("User Name: " + this.UserName);
    if (!string.IsNullOrEmpty(this.Password))
    sb.AppendLine("Password: " + this.Password);
    sb.AppendLine();
    return sb.ToString();
  }

then you can show all the added Entry as below

StringBuilder sb = new StringBuilder();
foreach (AddEntry entry in addedEntry)
{
    sb.Append(entry.ToString());
}

mainWindow.ChangeTextBox = sb.ToString();