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Asp.net Custom Validator Change Error Message Server Side
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Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Dynamic error message for custom validator clientside up vote 14 asp.net custom validator display dynamic down vote favorite 1 I am using a custom validator to call a javascript function for validation. My problem is that I need to be able to change the error message dynamically. Here is the code: function fcnValid(source, args) { var Status = document.getElementById("<%=ddlStatus.ClientID%>").value if (Status == "In Underwriting") { if (document.getElementById("<%=txtRequestor.ClientID%>").value == asp.net custom validator client side "") { //sender.errormessage = "Test1" //sender.innerHTML = "Test2"; document.getElementById("<%=txtRequestor.ClientID%>").focus(); args.IsValid = false; } } } javascript asp.net ajax customvalidator share|improve this question edited Mar 22 '11 at 17:09 Kelsey 33.9k1182130 asked Mar 22 '11 at 16:51 Mike 27031640 add a comment| 3 Answers 3 active oldest votes up vote 12 down vote accepted In your validation javascript you can change the message by accessing it via the source: source.errormessage = "custom message here"; Found this question on SO that should give you some more information as well: How can I rewrite the ErrorMessage for a CustomValidator control on the client? share|improve this answer edited Jan 8 '13 at 15:54 answered Mar 22 '11 at 17:02 Kelsey 33.9k1182130 Thank you, this is what ended up working: –Mike Mar 22 '11 at 17:16 3 source.errormessage = "* Not a UK Phone #" –Mike Mar 22 '11 at 17:20 doesn't work for me , source.errormessage = "custom message here"; works fine –Mahmoud Farahat Jan 8 '13 at 9:55 @Mahmoud corrected posting. Typically if the answer is already in the comment you can submit an edit to the answer (especially when it is the accepted answer) to have it improve
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How To Display Error Message In Javascript
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Custom Validator In Asp.net Example
like you, helping each other. Join them; it only takes a minute: Sign up How can I rewrite the ErrorMessage for a CustomValidator control on the client? up vote 6 down vote favorite 1 I have a http://stackoverflow.com/questions/5394861/dynamic-error-message-for-custom-validator-clientside CustomValidator that is validating a telephone number for several different telephone numbering schemes. The client-side javascript looks like this: validatePhoneNumber(sender, args) { cleanNumber = args.Value.replace(/\D/, ""); country = $("#" + CountryID).get(0).value; switch (country) { case "North America": args.IsValid = validateNAPhoneNumber(cleanNumber); if (!args.IsValid) sender.errormessage = "* Not a NA Phone #"; break; case "UK": args.IsValid = validateUKPhoneNumber(cleanumber); if (!args.IsValid) sender.errormessage = "* Not a UK Phone #"; break; ... } } The actual validation takes place http://stackoverflow.com/questions/1230281/how-can-i-rewrite-the-errormessage-for-a-customvalidator-control-on-the-client properly, and the CustomValidator has the correct IsValid property at all times. The sender.errormessage, however, seems to be rewritten just after this function call to it's default value. How can I change the errormessage value, and make it "stick"? asp.net javascript validation client-side ecma262 share|improve this question edited Aug 5 '09 at 2:15 asked Aug 4 '09 at 22:46 Dustman 2,09772638 add a comment| 9 Answers 9 active oldest votes up vote 3 down vote The best way to change the error message of a validator control with image is: sender.innerHTML = "YOUR HTML WITH ANYTHING COME HERE" share|improve this answer edited Jul 25 '15 at 12:05 Falko 6,79382150 answered Jun 13 '12 at 4:47 Satyavir Yadav 312 add a comment| up vote 3 down vote function dateofbirth(source, args) { var dtcDOB = document.getElementById('<%= dtcDOB.ClientID %>'); var dob = new Date(dtcDOB.value); var currDate = new Date(); if (dtcDOB.value == "") { args.IsValid = false; source.textContent = "Provide DOB."; return; } args.IsValid = true; } try source.textContent = "your err msg". It worked for me. share|improve this answer edited Jul 25 '15 at 12:06 Falko 6,79382150 answered Nov 10 '11 at 7:43 Nik 312 add a comment| up vote 2 down vote To change the error message, do it like this: if (!args.IsValid) document.getElementById('<%= cstPhoneNumber.ClientID %>').errormessage = "* Not a NA Phone #"; T
Party Controls ASP.Net Validators WCF Repeater Regular Expressions Yahoo API iTextSharp FaceBook Charts ListView Tweeter Google CSS SMS DotNetZip Crystal Reports Entity Framework HyperLink RDLC Report SqlDataSource Menu YouTube Twitter HTML XmlDataSource ListBox Tips DataGridView http://www.aspsnippets.com/Articles/Dynamically-change-the-error-message-of-ASPNet-CustomValidator-using-JavaScript.aspx Cryptography Windows Forms LinkedIn WebUserControl RSS Feeds HTML5 Sitemap IIS LINQ DataPager URL http://www.geekzilla.co.uk/ViewD27B15B4-71A4-4258-81EE-9445FAA9F634.htm Routing SqlBulkCopy OCR ASP.Net 4.5 Master Pages MySQL CSV Stored Procedures JSON Web Services Bootstrap Windows Service DataTable App.Config Visual Studio RadioButton CheckBox Generic Handler DropDownList FileUpload RadioButtonList CheckBoxList Flash HtmlEditorExtender Div Table AngularJS DataReader DataSet Console Applications FTP DetailsView Password TextBox Enum ComboBox Sponsored SqlDataAdapter OpenXml ClosedXml SiteMapPath Arrays FormView SqlTransaction Web.Config Cookies MVC custom validator Data Annotation Forums Contact Search Search Home Categories Forums Contact Search Dynamically change the error message of ASP.Net CustomValidator using JavaScript 23 May 2014 Mudassar Khan 0 Comments 46310Views ASP.NetJavaScriptASP.Net Validators Follow @ASPSnippets Follow @ASPSnippets Here Mudassar Ahmed Khan has explained how to dynamically change the error message of ASP.Net Custom Validator using JavaScript.In order to illustrate the functioning with an example, I have created a simple form asp.net custom validator where a person has to enter either Phone Number or Cell Number and based on what he chooses the validation message of the ASP.Net CustomValidator is dynamically changed using JavaScript. Download View Demo Download FREE APIs to work with ALL kinds of office files - http://e-iceblue.com/free-api Follow @ASPSnippets Follow @ASPSnippets In this article I will explain how to dynamically change the error message of ASP.Net Custom Validator using JavaScript. In order to illustrate the functioning with an example, I have created a simple form where a person has to enter either Phone Number or Cell Number and based on what he chooses the validation message of the ASP.Net CustomValidator is dynamically changed using JavaScript. HTML Markup In the below HTML Markup I have a RadioButtonList to allow user choose whether he has to enter Phone Number or Cell Number, and there is a TextBox for each of the respective Phone and Cell Number and a CustomValidator for which I have set the ErrorMessage property as blank string.
* then create a JavaScript function to do the validation. Here I have created a Regular Expression to validate decimals. Then simply set the args.IsValid property to either true or false and return. varnumericMatchexpression=/^(-)?(\d*)(\.?)(\d*)$/; functionCheckDiscountAmount(sender,args){ if(args.Value!=""&&GetElement(DiscountPercentageId).value!=""){ args.IsValid=false; return; } varre=newRegExp(numericMatchexpression); if(!re.test(args.Value)){ args.IsValid=false; return; } args.IsValid=true; return; } functionGetElement(id){ if(document.all){ returndocument.all[id]; }else{ returndocument.getElementById(id); } } In this example I have used the ScriptManager to write out a JavaScript variable (DiscountPercentageId) with the ClientID of the ASP.net TextBox I'm validating. You'll also notice my GetElement function to handle the browser compatibility. I hope this proves useful in your next AJAXian web application. Author Paul Marshall A self confessed Microsoft bigot, Paul loves all Microsoft products with a particular fondness for SQL Server. Paul is currently focusing on Web 2.0 patterns and practices and is always looking for better ways of doing things. I love the .net platform, and I find it to be the most product
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