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POCreating Calculator in C#, need help implementing math logic/something else
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<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(); } bool plus; bool minus; bool multiply; bool divide; private void button0_Click(object sender, EventArgs e) { textBox1.Text = textBox1.Text + "0"; } private void button1_Click(object sender, EventArgs e) { textBox1.Text = textBox1.Text + "1"; } private void button2_Click(object sender, EventArgs e) { textBox1.Text = textBox1.Text + "2"; } private void button3_Click(object sender, EventArgs e) { textBox1.Text = textBox1.Text + "3"; } private void button4_Click(object sender, EventArgs e) { textBox1.Text = textBox1.Text + "4"; } private void button5_Click(object sender, EventArgs e) { textBox1.Text = textBox1.Text + "5"; } private void button6_Click(object sender, EventArgs e) { textBox1.Text = textBox1.Text + "6"; } private void button7_Click(object sender, EventArgs e) { textBox1.Text = textBox1.Text + "7"; } private void button8_Click(object sender, EventArgs e) { textBox1.Text = textBox1.Text + "8"; } private void button9_Click(object sender, EventArgs e) { textBox1.Text = textBox1.Text + "9"; } private void buttonPlus_Click(object sender, EventArgs e) { if (textBox1.Text == "") return; else { plus = true; textBox1.Text = textBox1.Text + " + "; } } private void buttonDivide_Click(object sender, EventArgs e) { if (textBox1.Text == "") return; else { divide = true; textBox1.Text = textBox1.Text + " / "; } } private void buttonMinus_Click(object sender, EventArgs e) { if (textBox1.Text == "") return; else { minus = true; textBox1.Text = textBox1.Text + " - "; } } private void buttonMultiply_Click(object sender, EventArgs e) { if (textBox1.Text == "") return; else { multiply = true; textBox1.Text = textBox1.Text + " * "; } } private void buttonClear_Click(object sender, EventArgs e) { textBox1.Text = string.Empty; } private void buttonEquals_Click(object sender, EventArgs e) { if (plus) { } if (minus) { } if (multiply) { } if (divide) { } } } } </code></pre> The part I am stuck on, is after I press a math button (+,-,/,*). I only want one character to show in the textbox, unless I press another number. Example: Right now, this is what happens: 87 + + + + + + + + I want 87 + and I want it where I can add another if the user adds another number, so like 87 + 87 + etc. Also, I need a little direction when it comes to adding the math logic. I was thinking of somehow storing whatever was in the string prior to a math sign in a variable, then doing the same for the numbers proceeding the math sign. Is that fine or is there an easier/less complicated way to accomplish this?
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<c#><c#-4.0>
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Creating Calculator in C#, need help implementing math logic/something else
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