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Can I add a client-side validation on a form with Syncfusion components?

Hi, I'm creating a form in a dialog box with some fields that use Syncfusion components - like DropDownList and DateTimePicker. I need to add validation on the client side before sending to the server. Try using FormValidator but it doesn't work for me. What should I do to do the validation? I hope you can help me. I thank you in advance

Attachment: Question_d3519b25.rar

3 Replies

SP Sureshkumar P Syncfusion Team December 5, 2019 06:35 AM UTC

Hi Juan, 
Greetings from Syncfusion support. 
Yes, we can validate client side using formvalidator. Kindly refer the below code example  
@Html.EJS().Dialog("dialog").Header("Form Validation").IsModal(true).Width("700px").ContentTemplate(@<div> 
            @using (Ajax.BeginForm("NuevoConsumible", "Preventivo", 
                        new AjaxOptions { HttpMethod = "Post", OnSuccess = "ConsumibleComplete", OnFailure = "ConsumibleFail", UpdateTargetId = "Nuevo" }, 
                        new { id = "FormContents" })) 
                    <div class="form-group"> 
                        @Html.LabelFor(model => model.dropdownValue, "Suministro") 
                        @(Html.EJS().DropDownListFor(model => model.dropdownValue) 
                            .DataSource(dataManager => dataManager.Url(Url.Action("DataCatConsumible", "Preventivo", new { area = "Mantenimiento" }, Request.Url.Scheme)) 
                            .Fields(new Syncfusion.EJ2.DropDowns.DropDownListFieldSettings 
                                Text = "Text", 
                                Value = "Value" 
                    <div class="form-group"> 
                        @*@Html.LabelFor(m => m.Cantidad, "Cantidad")*@ 
                        @*@Html.TextBoxFor(m => m.Cantidad, String.Format("{0:0.00}",Model.Cantidad), new { @class="form-control", @type = "number" })*@ 
                        <input type="number" step="0.01" name="Cantidad" id="Cantidad" class="form-control" data-msg-containerid="inputError" required /> 
                        <div id="inputError"></div> 
                    <div class="form-group"> 
                            @Html.LabelFor(model => model.rangevalue, "Fecha Entrega") 
                            @Html.EJS().DateTimePickerFor(model => model.rangevalue).Format("dd-MMMM-yyyy hh:mm a").Render() 
                <div class="form-actions"> 
                    <div class="row"> 
                        <div class="col-md-12"> 
                            <button class="btn btn-default" type='button' id="btnCancel" onclick="CerrarForma()"> 
                            <button class="btn btn-primary" type="submit" id="btnSave"> 
                                <i class="glyphicon glyphicon-save"></i> 
                                Guardar Cambios 
We have modified your shared code and created sample based on your requirement (with dialog component). kindly refer the sample here: https://www.syncfusion.com/downloads/support/forum/149666/ze/DateRangePicker2052245572  
Sureshkumar P 

JC Juan Cruz December 5, 2019 06:11 PM UTC

I have seen the example they gave and it works. Will it work if you had the html markup of the form in a partial view and that it fills the contents of the dialog box through an ajax request? Will the validation still work?

SP Sureshkumar P Syncfusion Team December 6, 2019 11:36 AM UTC

Hi Juan, 
Yes, we can validate the form element through partial view inside the dialog component. Kindly refer the below code block. 
btnEle.onclick = function () { 
        // load the partial view content to dialog while open the dialog element. 
            type: "POST", 
            url: "/Home/_PartialView", 
            success: function (response) { 
                document.getElementById('partialTarget').innerHTML = response; 
                var options = { 
            rules: { 
                //must specify the name attribute value in rules section 
                'dropdownValue': { required: true }, 
                'Cantidad': { required: true }, 
                'rangevalue': { required: true } 
            customPlacement: (inputElement, errorElement) => { 
        var formObject = new ej.inputs.FormValidator('#FormContents', options); 
We have modified the sample based on your requirement. please find the sample here: https://www.syncfusion.com/downloads/support/forum/149666/ze/DateRangePicker1636733167  
Sureshkumar P 

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