How to set mandatory star mark before entering data into cotrols

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hii ,
i have many control in my form , As per I know i set required fieldvalidator control for each control and set text property to * and error message property with proper error which will get displayed into summary control , but due to some unknown reason star mark is not gets displayed before entering , it only executes after clicking on button , please suggest me something else

Posted 10-Jul-13 3:03am

Torakami

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Samresh.ss · Accepted Answer · 2013-07-10T03:25:00

Solution 1

Text property hold the message to display when the validation fails.
So when you click the button and validation fails you see what you have
set in Text property.

To have '*' initially, have it in a label that might be before/after your
input element.

Posted 10-Jul-13 3:25am

Samresh.ss

Updated 10-Jul-13 3:26am

v2

Comments

Torakami 10-Jul-13 9:28am

Ok I Agree with this solution , But I have lots of controls in my form , so all time visible disable this label is not possible , its would be very tough

Samresh.ss 10-Jul-13 9:38am

You might want to use CustomValidator then with a single Client validation function for all.
The function would check if the input element holds something, if not pick its previous element (label) and add a '*' if not there, else remove the '*'

Torakami 11-Jul-13 1:11am

Can You provide me the code to understand your logic ,,

Samresh.ss · Accepted Answer · 2013-07-11T07:38:00

For a sample markup like this

XML

<asp:Label ID="lblName" runat="server" Text="Enter Name:" ValidationGroup="test"></asp:Label>
        <asp:TextBox ID="txtName" runat="server" ValidationGroup="test"></asp:TextBox>
        <asp:Button ID="btnSubmit" runat="server" ValidationGroup="test" />
        <asp:CustomValidator ControlToValidate="txtName" ID="cvName" ErrorMessage="error" Text="error"
         runat="server" ClientValidationFunction="checkIfValExists" ValidateEmptyText="true" ValidationGroup="test"></asp:CustomValidator>

You can use a js function like this (jquery is used in here)

C#

function checkIfValExists(source, args) {
        var txt =$(source).prev().prev().prev().text();
        if($(source).prev().prev().val().length == 0)
        {
            if (txt.length > 0 && txt.charAt(txt.length - 1) != '*') {
                $(source).prev().prev().prev().text(txt + '*');
            }
            args.IsValid = false;
        }
        else
        {
            if(txt.length > 0 && txt.charAt(txt.length - 1) == '*' ){
                $(source).prev().prev().prev().text(txt.substring(0, txt.length - 1));
            }
        }
    }