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POServer side variable in client side custom validator
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2013-05-07T13:17:23.953
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2013-05-07T13:23:40.290
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I have a custom validator on a page: <pre><code><asp:CustomValidator ID="CustomValidator2" runat="server" ControlToValidate="ddlProposer" ErrorMessage="Please select some values." Display="Dynamic" onservervalidate="CustomValidator2_ServerValidate" ClientValidationFunction="CustomValidator2_ClientValidate"> </asp:CustomValidator> </code></pre> It must be valid, when a server-side list is not empty (or: the <code>ListCount</code> variable > 0). This list may change after the page has been loaded (via buttons on update panel): <pre><code>public partial class Pages_Application_Application : System.Web.UI.Page { protected List<IdValue> ProposersList { get { if (ViewState["proposersList"] == null) ViewState["proposersList"] = new List<IdValue>(); return ViewState["proposersList"] as List<IdValue>; } set { ViewState["proposersList"] = value; } } public int ListCount { get { return this.ProposersList.Count; } } ... </code></pre> There is no problem with server-side validation: <pre><code>protected void CustomValidator2_ServerValidate(object source, ServerValidateEventArgs args) { args.IsValid = this.ProposersList.Count > 0; } </code></pre> The problem is with client-side part. I've been trying something like this: <pre><code><script type="text/javascript"> function CustomValidator2_ClientValidate(source, arguments) { var serverVariable = <%= ListCount %>; alert(serverVariable); arguments.IsValid = serverVariable > 0; } </script> </code></pre> however, it fires only on first page load, and the ListCount variable is always 0 (so does the serverVariable). The question is: is there an easy-way to make it working? So the Javascript gets the current value of some server-side variable?
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<c#><asp.net><.net><validation>
Title
Server side variable in client side custom validator
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