在react中循环渲染数据、添加点击事件_react如何在页面渲染完后给元素添加事件

Solution

In Batch Edit Mode, with edited records not saved , if we perform any Grid actions such as paging, sorting, etc., an alert message would be shown to save the edited record or cancel the Grid action as in the below screenshot.

We can avoid or prevent this alert message by using “ ShowConfirmDialog ” Grid EditSetting s API.

But preventing the alert message will result in losing the edited records on performing Grid action like paging.

To prevent the alert message and at the same time to save the edited records, we can make use “ ActionBegin ” Grid event in which using “ batchSave “ Grid method we can save the edited records.

<script type="text/javascript">
        $(function () {
            $("#Grid").ejGrid({
                dataSource: window.gridData,
                allowPaging: true,
                editSettings: { allowEditing: true, allowAdding: true, allowDeleting: true, editMode: "batch" },
                toolbarSettings: { showToolbar: true, toolbarItems: [ej.Grid.ToolBarItems.Add, ej.Grid.ToolBarItems.Edit, ej.Grid.ToolBarItems.Delete, ej.Grid.ToolBarItems.Update, ej.Grid.ToolBarItems.Cancel] },
                actionBegin: “begin”,
                columns: [
                        { field: "OrderID", isPrimaryKey: true, headerText: "Order ID", textAlign: ej.TextAlign.Right, width: 90 },
                        { field: "CustomerID", headerText: 'Customer ID', validationRules: { required: true,}, width: 90 },
                        { field: "EmployeeID", headerText: 'Employee ID', editType: ej.Grid.EditingType.Dropdown, textAlign: ej.TextAlign.Right, width: 80 },
                        { field: "Freight", headerText: 'Freight', textAlign: ej.TextAlign.Right, editType: ej.Grid.EditingType.Numeric, width: 80, format: "{0:C}" },
                        { field: "ShipName", headerText: 'Ship Name', width: 150 },
                        { field: "ShipCountry", headerText: 'Ship Country', editType: ej.Grid.EditingType.Dropdown, width: 90 }
    </script>
@(Html.EJ().Grid<object>("Editing")
        .Datasource((IEnumerable<object>)ViewBag.datasource)
        .EditSettings(edit => { edit.AllowAdding().AllowDeleting().AllowEditing().EditMode(EditMode.Batch).ShowConfirmDialog(false); })
        .ToolbarSettings(toolbar =>
            toolbar.ShowToolbar().ToolbarItems(items =>
                items.AddTool(ToolBarItems.Add);
                items.AddTool(ToolBarItems.Edit);
                items.AddTool(ToolBarItems.Delete);
                items.AddTool(ToolBarItems.Update);
                items.AddTool(ToolBarItems.Cancel);
        .AllowPaging()
        .Columns(col =>
            col.Field("OrderID").HeaderText("Order ID").IsPrimaryKey(true).TextAlign(TextAlign.Right).Width(90).Add();
            col.Field("CustomerID").HeaderText("Customer ID").ValidationRules(v => v.AddRule("required", true)).Width(90).Add();
            col.Field("EmployeeID").HeaderText("Employee ID").EditType(EditingType.Dropdown).TextAlign(TextAlign.Right).Width(80).Add();
            col.Field("Freight").HeaderText("Freight").TextAlign(TextAlign.Right).Width(80).EditType(EditingType.Numeric).Format("{0:C}").Add();
            col.Field("ShipName").HeaderText("ShipName").Width(150).Add();
            col.Field("ShipCountry").HeaderText("ShipCountry").EditType(EditingType.Dropdown).Width(90).Add();
        .ClientSideEvents(eve => eve.ActionBegin("begin"))
ASP.NET
<ej:Grid ID="OrdersGrid" runat="server" AllowPaging="True">
            <Columns>
                <ej:Column Field="OrderID" HeaderText="Order ID" IsPrimaryKey="true" TextAlign="Right" Width="75" />
                <ej:Column Field="CustomerID" HeaderText="Customer ID" Width="80" >
                    <ValidationRule>
                        <ej:KeyValue Key="required" Value="true" />
                    </ValidationRule>
                </ej:Column>
                <ej:Column Field="EmployeeID" HeaderText="Employee ID" TextAlign="Right" Width="80" EditType="Dropdown" />
                <ej:Column Field="Freight" HeaderText="Freight" TextAlign="Right" Width="80" Format="{0:C}" EditType="Numeric" />
                <ej:Column Field="ShipName" HeaderText="ShipName" Width="150" />
                <ej:Column Field="ShipCountry" HeaderText="ShipCountry" Width="90" EditType="Dropdown" />
            </Columns>
            <EditSettings AllowEditing="True" AllowAdding="True" AllowDeleting="True" EditMode="Batch"></EditSettings>
            <ToolbarSettings ShowToolbar="True" ToolbarItems="add,edit,delete,update,cancel"></ToolbarSettings>
            <ClientSideEvents ActionBegin="begin" />
        </ej:Grid>
<script>
    function begin(args) {
         if (args.requestType == "paging" | args.requestType == "sorting") {
              if (this.model.isEdit && !this.getContent().find("#EditingEditForm").validate().form()) {
                  args.cancel = true; // Preventing Grid action in case of any validation error
         var changes = this.getBatchChanges();// getBatchChanges method returns unsaved edited, added and deleted records.
         if (!args.cancel && (this.model.isEdit || changes.added.length || changes.deleted.length || changes.changed.length)) {
             this.batchSave(); // Saving edited records
</script>
 
Conclusion
I
hope you enjoyed learning about how to save edited records without
showing confirmation message dialog.
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MVC Grid feature tour
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