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Unable to add role names to a user using a dialog template

Thread ID:




150560 Jan 11,2020 06:43 AM UTC ASP.NET Core - EJ 2 0
Tags: DataGrid
Ronald Walcott
Asked On January 11, 2020 06:43 AM UTC

Good day
I am trying to add roles to users using a dialog template called from a toolbar item on a datagrid 

I have a UserListViewModel and a RoleViewModel

    public class UserListViewModel
        public string Id { get; set; }
        public string UserName { get; set; }
        public string Name { get; set; }
        public string Surname { get; set; }
        public string FirstName { get; set; }
        public string MiddleName { get; set; }
        public string RoleNames { get; set; }
        public Boolean LockoutEnabled { get; set; }
        public string EmployeeNumber { get; set; }
        public List<UserRolesViewModel> UserRoles { get; set; }

    public class UserRolesViewModel
        public string Id { get; set; }
        public string RoleName { get; set; }
        public Boolean HasRole { get; set; }

establishing a one to many relationship between users and roles.

I created a grid

<ejs-grid id="Grid" allowPaging="true" allowSorting="true" actionComplete="complete" toolbarClick="toolbarClick" toolbar=toolbarItems >
    <e-grid-editSettings allowAdding="true" allowDeleting="true" allowEditing="true" mode="Dialog" template='#dialogtemplate'></e-grid-editSettings>
    <e-grid-pagesettings pagesize="10"></e-grid-pagesettings>
    <e-data-manager url="/UserManagement/UserEdit/UsersDataSource" updateUrl="/UserManagement/UserEdit/Update" removeUrl="/UserManagement/UserEdit/Delete" adaptor="UrlAdaptor"></e-data-manager>
        <e-grid-column field="Id" headerText="ID" isPrimaryKey="true" visible="false"></e-grid-column>
        <e-grid-column field="UserName" headerText="Username" type="string" width="120"></e-grid-column>
        <e-grid-column field="Name" headerText="Name" type="string" width="120"></e-grid-column>
        <e-grid-column field="EmployeeNumber" headerText="Employee No" type="string" width="120"></e-grid-column>
        <e-grid-column field="RoleNames" headerText="Role names" type="string" width="120"></e-grid-column>
        <e-grid-column field="LockoutEnabled" headerText="Locked Out" displayAsCheckBox="true" width="120"></e-grid-column>

with a modified toolbar

    List<object> toolbarItems = new List<object>();
    toolbarItems.Add(new { text = "Roles", tooltipText = "Roles", prefixIcon = "e-claim-icon", id = "Roles" });

intercepted the toolbar click

    function toolbarClick(args) {
        console.log("args.item.id " + args.item.id);
        if (args.item.id === 'Roles') {
            var data = document.getElementById('Grid').ej2_instances[0].getSelectedRecords();
        else if (args.item.id === 'Grid_edit') {

and used a hidden field to determine the edit

<input type="hidden" id="EditType" value="" />

and call one template to edit user information and the other to edit roles

    function complete(args) {
          if (args.requestType === 'beginEdit' || args.requestType === 'add') {
                let spinner = ej.popups.createSpinner({ target: args.dialog.element });
                let dialog = args.dialog;
                // change the header of the dialog
                dialog.header = args.requestType === 'beginEdit' ? 'Edit Record' : 'New Record';
                if ($("#EditType").val() == "Roles") {
                    dialog.header = "Edit roles for " + JSON.parse(JSON.stringify(args.rowData)).Name
                if (args.requestType === 'beginEdit' && $("#EditType").val() != "Roles") {
                    var ajax = new ej.base.Ajax({
                        url: "@Url.Action("Editpartial", "UserEdit", new { Area = "UserManagement" })", //render the partial view
                        type: "POST",
                        contentType: "application/json",
                        data: JSON.stringify({ value: args.rowData })
                    ajax.send().then(function (data) {
                        appendElement(data, args.form); //Render the edit form with selected record
                        args.form.elements.namedItem('UserName').focus(); //set the focus for editing to username
                    }).catch(function (xhr) {
                else if (args.requestType === 'beginEdit' && $("#EditType").val() == "Roles") {
                    var ajax = new ej.base.Ajax({
                        url: "@Url.Action("EditRolesPartial", "UserEdit", new { Area = "UserManagement" })", //render the partial view
                        type: "POST",
                        contentType: "application/json",
                        data: JSON.stringify({ value: args.rowData })
                    ajax.send().then(function (data) {
                        appendElement(data, args.form); //Render the edit form with selected record
                    }).catch(function (xhr) {

When I select any of the checkboxes created by iterating the list the model is not being updated 

@model CaribPayroll.Areas.UserManagement.Models.UserListViewModel
@*//define the model for store the model values*@
@using Syncfusion.EJ2
        <input asp-for="Id" value=@Model.Id disabled type='hidden' />
        <div class="form-row">
            @{ int i = 0; }
            @foreach (var item in Model.UserRoles)
            <div class="form-group col-md-4">
                @{string IDField = "UserRoles_" + i + "_HasRole";}
                <ejs-checkbox id="@IDField" ejs-for="@Model.UserRoles[i].HasRole" label="@item.RoleName" ></ejs-checkbox>
                //create two hidden fields for the id and rolename values
                <input type="hidden" asp-for="UserRoles[i].Id" />
                <input type="hidden" asp-for="UserRoles[i].RoleName" />


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