CODEWITHSUNDEEP
asp.netcustomvalidator
sennett
sennett

Reputation: 8444

asp.net - manually run client-side validation code from another event

I want to run whatever client-side validation routine is hooked up to a particular text input element.

The validation has been set up using CustomValidator:

<asp:textbox id="AddEstTime" runat="server" Width="55px"></asp:textbox><br />
<asp:CustomValidator ID="AddEstTimeCustomValidator" ClientValidationFunction="AddEstTimeCustomValidator_ClientValidate" OnServerValidate="AddEstTimeCustomValidator_ServerValidate" ErrorMessage="Please enter a time" ControlToValidate="AddEstTime"  runat="server" Display="Dynamic" ValidateEmptyText="true"/>
<asp:CheckBox ID="AddIsTM" runat="server" Text="T&amp;M" />

and the javascript:

function AddEstTimeCustomValidator_ClientValidate(sender, args) {
    var checkbox = $("input[id$='IsTM']");
    args.IsValid = checkbox.is(":checked") || args.Value.match(/^\d+$/);
}

When the CheckBox "AddIsTM" state changes, I want to revalidate the textbox "AddEstTime", using its hooked-up CustomValidator "AddEstTimeCustomValidator".

I am aware of focus -> add a character refocus -> remove character. I am trying to find a more correct way. New to asp.NET.

Upvotes: 5

Views: 3625

Answers (3)

bresleveloper
bresleveloper

Reputation: 6066

thx sennett (voted)

i just ran the simplest JS 

Page_ClientValidate();

if you have a validation group then is

Page_ClientValidate("validationGroupName")

Upvotes: 3

sennett
sennett

Reputation: 8444

After looking through the Microsoft client-side code, I came up with this which seems to work:

// client-side validation of one user-control.
// pass in jquery object with the validation control
function ValidateOneElement(passedValidator) {
    if (typeof (Page_Validators) == "undefined") {
        return;
    }
    $.each(Page_Validators, function (index, value) {
        if ($(value).attr("id") == passedValidator.attr("id")) {
            ValidatorValidate(value, null, null);
        }
    });
}

This was after examining the Page_ClientValidate function:

function Page_ClientValidate(validationGroup) {
    Page_InvalidControlToBeFocused = null;
    if (typeof(Page_Validators) == "undefined") {
        return true;
    }
    var i;
    for (i = 0; i < Page_Validators.length; i++) {
        ValidatorValidate(Page_Validators[i], validationGroup, null);
    }
    ValidatorUpdateIsValid();
    ValidationSummaryOnSubmit(validationGroup);
    Page_BlockSubmit = !Page_IsValid;
    return Page_IsValid;
}

Upvotes: 4

Antonio Bakula
Antonio Bakula

Reputation: 20693

If you want stick with ASP.NET validators eventually you can abuse Validation Groups, but I think that this approach will give you nothing but trouble. Other option is to use jQuery on the client (nice list) only then you will have to duplicate validation on the server side, or to avoid that call server methods from client validations.

Upvotes: 1

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