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POCall button click event on pressing Enter - c#
 

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  1. POCall button click event on pressing Enter - c#
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    <p>I am new to c# - I want to trigger button click event on pressing enter. My code not working properly - </p> <p>issue is that when i press enter on submitting some value, it displays messagebox which it should show but on pressing Enter for OK button of Messagebox, it automatically triggers button click event again even i don't press enter or enter any other value. </p> <pre><code>public partial class Form1 : Form { int n1, n2 = 0; private static readonly Random getrandom = new Random(); private static readonly object syncLock = new object(); public int GetRandomNumber(int min, int max) { lock (syncLock) { // synchronize return getrandom.Next(min, max); } } public int tQuestion() { n1 = GetRandomNumber(2, 11); n2 = GetRandomNumber(2, 11); string tQues = n1 + " x " + n2 + " = "; label1.Text = tQues; return 0; } public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { tQuestion(); } private void label1_Click(object sender, EventArgs e) { } private void textBox1_TextChanged(object sender, EventArgs e) { textBox1.KeyDown += new KeyEventHandler(tb_KeyDown); } public void button1_Click(object sender, EventArgs e) { string tAns = textBox1.Text; int answer = n1 * n2; string tOrgAns = answer.ToString(); if (tAns == tOrgAns) MessageBox.Show("Your answer is Corect", "Result", MessageBoxButtons.OK,MessageBoxIcon.Exclamation ); else MessageBox.Show("Your answer is WRONG", "Result", MessageBoxButtons.OK, MessageBoxIcon.Stop); textBox1.Text = ""; textBox1.Focus(); tQuestion(); } static void tb_KeyDown(object sender, KeyEventArgs e) { if (e.KeyCode == Keys.Enter) { button1_Click(sender, e); } } </code></pre> <p>Moreover, code only works if i remove <code>static</code> from <code>static void tb_KeyDown(object sender, KeyEventArgs e)</code> - otherwise it gives error: </p> <blockquote> <p>An object reference is required for the non-static field, method, or property</p> </blockquote> <p>Please help me - i am new to c# &amp; .Net</p>
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    1. USSergey Berezovskiy
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      1. VTUpMod
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      1. VTUpMod
    1. COPlease add the WinForms or WPF tag to your message. It's extremelly useful for tag filters.
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      1. USCédric Bignon
    2. COSorry,I tried that - but i was unable to understand that :(
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