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POcannot display label from javascript
 

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  1. POcannot display label from javascript
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    <p>I am validating a form from javascript. <strong>The target is:</strong> if user do not enter value in a required field, an error message will show up and will disappear after few seconds. BUT <strong>The problem is:</strong> The error message don't show up and this is probably because from javascript I am failing to write error message in a label control. BUT, if I use javascript alert instead of displaying the label, it works. </p> <p>The code: Javascript</p> <pre><code>&lt;script type="text/javascript"&gt; function showConfirmation() { $('div#confirmationDV').show(); setTimeout(function () { $('div#confirmationDV').fadeOut(5000); }); } function validateRequiredField() { if (document.getElementById("&lt;%=txtOfferTitle.ClientID%&gt;").value == "") { alert("error.....");//this alert works. document.all("&lt;%=lblConfirmation.ClientID%&gt;").innerHTML = "please enter your business name"; // this does not work document.all("&lt;%=lblConfirmation.ClientID%&gt;").style.color = "red"; showConfirmation(); document.getElementById("&lt;%=txtOfferTitle.ClientID%&gt;").focus(); return false; } return true; } &lt;/script&gt; </code></pre> <p>HTML</p> <pre><code>&lt;div class="round-conf-box" id="confirmationDV"&gt; &lt;div class="round-conf-tl"&gt; &lt;div class="round-conf-tr"&gt;&lt;/div&gt; &lt;div class="round-conf-background_color_top"&gt;&lt;/div&gt; &lt;/div&gt; &lt;div class="round-conf-box-Content"&gt; &lt;asp:Label ID="lblConfirmation" runat="server" CssClass="confirmationLabel"&gt;&lt;/asp:Label&gt; &lt;/div&gt; &lt;div class="round-conf-bl"&gt; &lt;div class="round-conf-br"&gt;&lt;/div&gt; &lt;div class="round-conf-background_color_bottom"&gt;&lt;/div&gt; &lt;/div&gt; </code></pre> <p> //...some other stuff</p> <pre><code>&lt;asp:ImageButton ID="iBtnSave" runat="server" ImageUrl="~/images/createOffer.png" onclick="iBtnSave_Click" OnClientClick="return validateRequiredField()" /&gt; </code></pre> <p>and in the code behind</p> <pre><code>protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { iBtnSave.Attributes.Add("onclick", "return validateRequiredField()"); //some other stuff }} </code></pre> <p>Would be nice if anyone can help me to find my mistakes.. cheers</p>
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    1. USkandroid
    1. USkandroid
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    1. COIs your validation done on the client side or server side? If client side then why do you use the asp tags within validation function?
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      1. POcannot display label from javascript
      1. USAmGates
    2. COit is in client side. inside the validateRequiredField() function. What asp tag you are talking about?
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      1. USkandroid
    3. COdocument.all("<%=lblConfirmation.ClientID%>").innerHTML = "please enter your business name"; // this does not work document.all("<%=lblConfirmation.ClientID%>").style.color = "red"; these tags will be replaced at server side na? Did you check the values replaced by viewing the source of the page displayed in the browser?
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      1. POcannot display label from javascript
      1. USAmGates
 

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