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    <p>You should do it on <strong>client side</strong> (edit: as suggested by MightyLampshade you can find on of 1000 examples <a href="https://stackoverflow.com/questions/4135818/how-to-clear-a-textbox-using-javascript">here</a>), you do not need a round-trip to server for that. If you have, let's say, a clear button:</p> <pre><code>$("#clear").click(function() { $(".can-be-cleared").val(""); }); </code></pre> <p>Please note that this will clear all elements with class <code>can-be-cleared</code> (I assume you may do not want to clear each input but a specific set, if it's not the case just replace it with <code>input[type=text]</code>).when you click an element with id <code>clear</code>.</p> <p>If each "clear" button has to be tied with a single specific text box then you have to repeat them (because when you click on the button textbox won't be focused any more). As alternative you may <em>remember</em> last focused text box. Let's see both:</p> <pre><code>&lt;input type="text" id="textbox1"/&gt; &lt;button class="clear-button" data-textbox="textbox1"&gt;clear&lt;/button&gt; </code></pre> <p>JavaScript for this is:</p> <pre><code>$(".clear-button").click(function() { $("#"+$(this).data("textbox")).val(""); }); </code></pre> <p><strong>Simpler alternative</strong> (I prefer this if you do not have any other special requirement) may be to keep track of last focused textbox:</p> <pre><code>var lastFocused = undefined; $("input[type=text]").focus(function () { lastFocused = $(this); }); $("#clear-field").click(function () { if (lastFocused !== undefined) { lastFocused.val(""); } }); </code></pre> <p>Of course do not forget to match <code>$("#clear-field")</code> with right ID you used for your clear button, in this case I assume:</p> <pre><code>&lt;button id="clear-field"&gt;Clear&lt;/button&gt; </code></pre> <p>Anyway if you really need some server side processing (for any other reason), <code>TextBox</code> that generated event is in <code>sender</code> parameter:</p> <pre><code>Dim textbox As TextBox = DirectCast(sender, TextBox) textbox.Text = String.Empty </code></pre>
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    1. POIn ASP.NET can you String.Empty the TextBox thats IN focus?
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    1. COHi, there are 3 fields, A B and C, all edited in turn, I want to clear whichever is in focus so they dont need to do A and B again if they are on C. Currently trying, does this line seem correct; $(input[type=text]).val(""); Thanks
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    2. CO@Kieronboz yes, if you have just three textboxes you can omit class in query so it'll be (don't forget quotes): `$("input[type=text]").val("");` (and don't forget to change `#clear` to the right ID of your clear button). What I don't understand is: **do you want to clear them with a clear button or when they receive focus**?
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    3. COHi again, I want them to clear if they want too due to a mistake, so they are inputting data, they get it wrong, click clear, it deletes the characters in the field they are typing in. Rather than just using UPIN.Text=String.Empty. 3 times for ABC
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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