<div>
I would probably do something like this:<br />

<pre><code class="code-1 nolinks" id="code-120731"><span>string text = MessageTextbox.Text;</span>
<span> </span>
<span>if(text.Length &gt; 0 &amp;&amp; text.ToCharArray()[0] &gt; ' ')</span>
<span>{</span>
<span>  ...</span>
<span>}</span>
</code></pre>
</div>


<div>
that will effectively run when the first input character not for being a character below space or not. If you want to check for all ascii values (actually, char values, which is something slightly different then an ascii value), you could do:<br />

<pre><code class="code-1 nolinks" id="code-120743"><span>List&lt;Char&gt; lst = new List&lt;Char&gt;(MessageTextBox.Text.ToCharArray());</span>
<span> </span>
<span>foreach (char c in lst)</span>
<span>{</span>
<span>   .. do something..</span>
<span>}</span>
</code></pre>
</div>


<div>
you can get the ascii by converting it to int<br />
for instance.<br />
<br />
int i; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />
i = Convert.ToInt16('A');<br />
<br />
You will get the Ascii value of 'A' from i.
</div>


<div>
@scorpiia: note that Convert.ToInt16 only works with chars, not strings, so don't forget to convert it first.
</div>


<div>
Abel,<br />
<br />
Please show me how to convert to string first as i am getting an error..<br />
<br />
error code:<br />
<br />
string text = MessageTextbox.Text;<br />
<br />
int i = &nbsp;Convert.ToInt16(Convert.To<wbr />Char(text)<wbr />);<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />
if(i&gt;32)<br />

</div>


<div>
giving a B usually means that the resolution did not work for you....in which case it is often best to give more information so that the expert can help you further. I hope that you've worked it out :) and tx for the points!<br />

</div>


<div>
<div class="content wysiwyg-content">
I want to validate a textbox with ascii values as i dont want spaces to be sent.<br />
Currently im using this if statement but when a user puts a space it is accepted.<br />
<br />
if ((MessageTextbox.Text != &quot;&quot;)||(MessageTextbox.Text.<wbr />Length &gt;&nbsp;0))<br />
{<br />
<br />
}<br />
<br />
<br />
I want to only allow if the ascii value of the textbox is greater than 33.<br />

</div>
</div>


I want to validate a textbox with ascii values as i dont want spaces to be sent.
Currently im using this if statement but when a user puts a space it is accepted.

if ((MessageTextbox.Text != "")||(MessageTextbox.Text.Length > 0))
{

}


I want to only allow if the ascii value of the textbox is greater than 33.


C# textbox validation - How to find the ascii value of a textbox?

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).