Question

Visual Studio 2010 Express, Windows Forms.

Have made myself my first little application which used a local database (a journal app).
First form (which load when app starts) shows every entry that has been made.
A “Add button” show up a new form, from where I can add a new entry.

Now, everything works this far.

But when I close the add form, after adding a new entry, the new entry isn’t displayed in the first form. I have to close the program and start it up again the see the new entry.

How can I refresh the data in the first form, when the add form closes?

Best regards from Denmark

Answer 1

First of all you must open your second form as dialog like new FormAdd().ShowDialog(this);

this will stop the code until FormAdd close, then you can reload the data as you load in form firs load.

your code will be like this

private void Form1_Load(object sender, EventArgs e)
{
    LoadData();
}
private void btnAdd_Click(object sender, EventArgs e)
{
    new FormAdd().ShowDialog();
    LoadData();
}
private void LoadData()
{ 
   //load your data
}

by the way you can use DialogResult for unnecessary prevent refreshs is user does not insert a record to db. in FormAdd code set DialogResult value and in main form use like this

private void btnAdd_Click(object sender, EventArgs e)
{
    if (new FormAdd().ShowDialog(this) == System.Windows.Forms.DialogResult.OK)
        LoadData();
}