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in the designer doube click on the button and it will create a event function for you.<br />
<br />
Then type in:<br />
<br />
<br />
<br />

<pre><code id="code-477642">textBox3.Text =  textBox1.Text + &quot; &quot; + textBox2.Text
</code></pre>
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in the designer doube click on the button and it will create a event function for you.

Then type in:





textBox3.Text =  textBox1.Text + " " + textBox2.Text


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* The word &quot;sum&quot; was used in the description implying that numbers were being input. &nbsp;=)
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* The word "sum" was used in the description implying that numbers were being input.  =)

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:) - good eyes, I missed that totally.<br />

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<div class="content wysiwyg-content">
I am using visual studio 2008 express-<br />
I have three textboxes this.textBox1, this.textBox2, and this.textBox3 and a button.<br />
How do I code button to add textbox1 and textBox2 to display in textBox3.<br />
Thank you
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I am using visual studio 2008 express-
I have three textboxes this.textBox1, this.textBox2, and this.textBox3 and a button.
How do I code button to add textbox1 and textBox2 to display in textBox3.
Thank you

add two textboxes to show sum in third textbox

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C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).