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PO
 

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  1. PO
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    <p>In your code, you are <a href="http://msdn.microsoft.com/en-us/library/vstudio/dd460654.aspx#InstantiatingClasses" rel="nofollow">instantiating</a> your second class, <code>BankAccount</code> with this line:</p> <pre><code>BankAccount a = new BankAccount(); </code></pre> <p>But, you aren't using it anywhere. Based on what you have said in your original post, to get to the properties in your second class, you would call them like this:</p> <pre><code>a.IBa; a.Num1; a.withDrawl; </code></pre> <p>Below is a VERY simplistic example:</p> <pre><code>namespace WindowsFormsApplication1 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { string aValue = String.Empty; Something a = new Something(); a.SomeThingElse = aValue; } } public class Something { public string SomeThingElse { get { return SomeThingElse; } set { SomeThingElse = value; } } } } </code></pre> <p>In the example above, you can see that I am instantiating my new class <code>public class Something</code> in the <code>button1_Click</code> event, then calling the property within it by using <code>a.SomethingElse = aValue</code>, which is a <code>string</code> I have defined in the initial class. In this case, <code>aValue=""</code> because it was initialized to <code>String.Empty</code>, which is '""'.</p> <p>Also, on a side note, you may want to set the abstraction level on your second class to <code>public</code>, because without declaring it <code>public</code>, it will default to <code>private</code> (which would not cause issues in this case - it's just something to keep in mind).</p> <p>I am adding in another example - this one using some of the code you have provided:</p> <pre><code>using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace WindowsFormsApplication1 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void dep_Click(object sender, EventArgs e) { try { decimal newBalance; BankAccount bankAccount = new BankAccount(); // Instantiate your class. bankAccount.DepositAmount = Convert.ToDecimal(depAmt.Text); newBalance = (Convert.ToDecimal(currentBalance.Text)) + bankAccount.DepositAmount; currentBalance.Text = newBalance.ToString(); } catch { MessageBox.Show("ERROR", "Oops, this isn't good!", MessageBoxButtons.OK, MessageBoxIcon.Error); } } } public class BankAccount { decimal depositAmount; public decimal DepositAmount { get { return depositAmount; } set { depositAmount = value; } } } } </code></pre>
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    1. POwindows forms, methods, and buttons
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    1. USBrian
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    1. COThanks for flagging, comment has been removed, but next time, please don't feed the trolls. Just silently flag the post. It **will** get deleted.
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    2. COYou got it Johan. Thanks for the tip!
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