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POASP.NET Server Controls - Show Hide Textbox based on Dropdown selection
 

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  1. POASP.NET Server Controls - Show Hide Textbox based on Dropdown selection
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    <p>What is the best way to show/hide a textbox or an entire div section based on a users selection from a dropdown? I don't believe its possible with server controls, so I would have to use regular client side HTML controls, correct? Thanks for any input. Would jQuery be the best option for this? Is there a way to hide the Div by default and then show it when the user selects the option from the drop down?</p> <pre><code>&lt;div id="divLimitPrice"&gt;Limit Price&lt;br /&gt; &lt;asp:TextBox ID="txtLimitPrice" runat="server" ValidationGroup="ValidationGroupOrder"&gt;&lt;/asp:TextBox&gt; &amp;nbsp;&lt;asp:RequiredFieldValidator ID="rfvLimitPrice" runat="server" ControlToValidate="txtLimitPrice" ErrorMessage="This is a required field."&gt;&lt;/asp:RequiredFieldValidator&gt; &lt;/div&gt; &lt;script type="text/javascript"&gt; $(function () { $('[id*="ddPriceType"]').on('change', function () { var val = this.value, $divLimitPrice = $('[id*="divLimitPrice"]'); if (val === 1 || val === 2) { // Hide div group $divLimitPrice.hide(); } else { // Show div group $divLimitPrice.show(); } }); }); &lt;/script&gt; Price Type&lt;br /&gt; &lt;asp:DropDownList ID="ddPriceType" runat="server" ValidationGroup="ValidationGroupOrder"&gt; &lt;asp:ListItem Value="" Text ="Select a Price Type" /&gt; &lt;asp:ListItem Value="2" text="Type 2" /&gt; &lt;asp:ListItem Value="3" text="Type 3" /&gt; &lt;asp:ListItem Value="4" text="Type 4" /&gt; &lt;/asp:DropDownList&gt; &amp;nbsp;&lt;asp:RequiredFieldValidator ID="rfvPriceType" runat="server" ControlToValidate="ddPriceType" ErrorMessage="This is a required field."&gt;&lt;/asp:RequiredFieldValidator&gt; &lt;div id="divLimitPrice"&gt;Limit Price&lt;br /&gt; &lt;asp:TextBox ID="txtLimitPrice" runat="server" ValidationGroup="ValidationGroupOrder"&gt;&lt;/asp:TextBox&gt; &amp;nbsp;&lt;asp:RequiredFieldValidator ID="rfvLimitPrice" runat="server" ControlToValidate="txtLimitPrice" ErrorMessage="This is a required field."&gt;&lt;/asp:RequiredFieldValidator&gt; &lt;/div&gt;` </code></pre> <p>Hmm.. I tried adapting the code and I am missing something! Any thoughts? Thank you for your time.</p>
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    1. COusing server controls you can accomplish the same behavior.
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      1. POASP.NET Server Controls - Show Hide Textbox based on Dropdown selection
      1. USNudier Mena
    2. COAs the answers suggest, the best way to accomplish this would be on the client-side using jQuery. "Server controls" can mimic this behavior by toggling the .Visible property. For instance, you could toggle the .Visible property of an <asp:Panel> on the server side on the SelectedIndexChanged event of the <asp:DropDownList>. You could then wrap everything in UpdatePanels to make it seamless (AJAX).
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      1. USJAKEtheJAB
 

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