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KameshRajendranKameshRajendran
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Merge pull request #93 from SyncfusionExamples/943985_formdesigner
943985: Added Samples for Events in Form Designer
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‎Form Designer/Components/Layout/NavMenu.razor‎

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Custom Designer Toolbar
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</NavLink>
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</div>
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<div class="nav-item px-3">
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<NavLink class="nav-link" href="events">
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Events
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</NavLink>
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</div>
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</nav>
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</div>
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‎Form Designer/Components/Pages/Events.razor‎

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@page "/events"
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@* Export Form fields as JSON stream *@
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<SfButton OnClick="ExportFields">Export Form Fields</SfButton>
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@* Import Form fields as JSON stream *@
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<SfButton OnClick="ImportFields">Import Form Fields</SfButton>
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<!-- PDF Viewer component with reference binding and Form Designer Events -->
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<SfPdfViewer2 @ref="@viewer" Height="800px" Width="100%" DocumentPath="@DocumentPath" EnableFormFieldsValidation="true" IsDesignerModeChanged="IsDesignerModeChanged">
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<PdfViewerEvents
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FormFieldAdding="@OnFormFieldAdding" FormFieldAdded="@OnFormFieldAdded" FormFieldDeleted="@OnFormFieldDeleted" FormFieldClick="@OnFormFieldClicked"
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FormFieldDoubleClick="@OnFormFieldDoubleClicked" FormFieldSelected="@OnFormFieldSelected" FormFieldUnselected="@OnFormFieldUnSelected" FormFieldResized="@OnFormFieldResized"
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ValidateFormFields="@OnFormFieldValidated" FormFieldFocusIn="@OnFormFieldFocusIn" FormFieldFocusOut="@OnFormFieldFocusOut" FormFieldMouseEnter="@OnFormFieldMouseEnter"
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FormFieldMouseLeave="@OnFormFieldMouseLeave" FormFieldPropertyChanged="@OnFormFieldPropertyChanged" FormFieldsExporting="OnFormFieldsExporting" FormFieldsImporting="OnFormFieldsImporting"
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FormFieldsExported="OnFormFieldsExported" FormFieldsImported="OnFormFieldsImported" FormFieldsExportFailed="OnFormFieldsExportFailed" FormFieldsImportFailed="OnFormFieldsImportFailed">
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</PdfViewerEvents>
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</SfPdfViewer2>
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<div>Triggered event:@eventName</div>
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@code {
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// Reference to the PDF Viewer instance
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private SfPdfViewer2? viewer;
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private string eventName = "";
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// Path to the PDF document
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private string DocumentPath = "wwwroot/data/formDesigner_Document.pdf";
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Stream JSONStream = new MemoryStream();
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void OnFormFieldAdding(FormFieldAddEventArgs args)
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{
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// Access details about the adding form field
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eventName = "FormFieldAdding";
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Console.WriteLine($"Form Field being added: {args.Field.Name}");
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// args.Cancel = true; // Prevents the form field from being added
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// Additional processing logic
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}
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void OnFormFieldAdded(FormFieldAddedEventArgs args)
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{
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// Access details about the added form field
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eventName = "FormFieldAdded";
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Console.WriteLine($"Form Field added: {args.Field.Name}");
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// Additional processing logic
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}
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void OnFormFieldDeleted(FormFieldDeletedEventArgs args)
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{
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// Access details about the deleted form field
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eventName = "FormFieldDeleted";
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Console.WriteLine($"Form field deleted: {args.Field.Name}");
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// Implement additional logic, such as logging or UI updates
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}
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void OnFormFieldClicked(FormFieldClickArgs args)
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{
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// Access details about the clicked form field
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eventName = "FormFieldClicked";
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Console.WriteLine($"Form Field clicked: {args.FormField.Name}");
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// Additional processing logic
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}
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void OnFormFieldDoubleClicked(FormFieldDoubleClickEventArgs args)
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{
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// Access details about the double clicked form field
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eventName = "FormFieldDoubleClicked";
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Console.WriteLine($"Form field double clicked: {args.Field.Name}");
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// Implement additional logic, such as logging or UI updates
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}
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void OnFormFieldSelected(FormFieldSelectedEventArgs args)
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{
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// Access details about the selected form field
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eventName = "FormFieldSelected";
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Console.WriteLine($"Form field selected: {args.Field.Name}");
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// Implement additional logic, such as logging or UI updates
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}
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void OnFormFieldUnSelected(FormFieldUnselectedEventArgs args)
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{
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// Access details about the unselected form field
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eventName = "FormFieldUnSelected";
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Console.WriteLine($"Form field unselected: {args.Field.Name}");
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// Implement additional logic, such as logging or UI updates
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}
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void OnFormFieldResized(FormFieldResizedEventArgs args)
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{
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// Access details about the resized form field
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eventName = "FormFieldResized";
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Console.WriteLine($"Form field resized: {args.Field.Name}");
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// Implement additional logic, such as logging or UI updates
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}
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void OnFormFieldValidated(ValidateFormFieldsArgs args)
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{
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// Access details about the validated form field
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eventName = "ValidateFormFields";
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Console.WriteLine($"Form field Validated: {args.Fields[0].Name}");
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// Implement additional logic, such as logging or UI updates
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}
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void OnFormFieldFocusIn(FormFieldFocusInEventArgs args)
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{
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// Access details about the focused in form field
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eventName = "FormFieldFocusIn";
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Console.WriteLine($"Form field focused in: {args.Field.Name}");
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// Implement additional logic, such as logging or UI updates
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}
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void OnFormFieldFocusOut(FormFieldFocusOutEventArgs args)
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{
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// Access details about the focused out form field
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eventName = "FormFieldFocusOut";
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Console.WriteLine($"Form field focused out: {args.Field.Name}");
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// Implement additional logic, such as logging or UI updates
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}
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void OnFormFieldMouseEnter(FormFieldMouseEnterEventArgs args)
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{
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// Access details about the mouse entered form field
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eventName = "FormFieldMouseEnter";
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Console.WriteLine($"Form field Mouse entered: {args.Field.Name}");
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// Implement additional logic, such as logging or UI updates
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}
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void OnFormFieldMouseLeave(FormFieldMouseLeaveEventArgs args)
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{
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// Access details about the mouse leaved form field
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eventName = "FormFieldMouseLeave";
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Console.WriteLine($"Form field Mouse leaved: {args.Field.Name}");
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// Implement additional logic, such as logging or UI updates
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}
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void OnFormFieldPropertyChanged(FormFieldPropertyChangedEventArgs args)
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{
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// Access details about the property changed form field
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eventName = "FormFieldPropertyChanged";
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Console.WriteLine($"Form field property changed: {args.NewValue}");
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// Implement additional logic, such as logging or UI updates
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}
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void IsDesignerModeChanged(bool args)
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{
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// Check the state of Designer mode
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eventName = "IsDesignerModeChanged";
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Console.WriteLine($"Designer mode is: {args}");
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// Implement additional logic, such as logging or UI updates
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}
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private async void ExportFields()
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{
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// Export form fields as JSON Stream
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if (viewer != null)
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{
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JSONStream = await viewer.ExportFormFieldsAsync(FormFieldDataFormat.Json);
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}
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}
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private async void ImportFields()
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{
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// Import form fields as JSON Stream
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if (JSONStream != null && viewer != null)
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{
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// Import JSON data into the viewer
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await viewer.ImportFormFieldsAsync(JSONStream, FormFieldDataFormat.Json);
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}
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}
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void OnFormFieldsExporting(FormFieldsExportEventArgs args)
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{
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eventName = "FormFieldsExporting";
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Console.WriteLine($"Form fields are being exported");
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// args.Cancel = true; // Cancels the export process
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// Implement additional logic, such as logging or UI updates
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}
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void OnFormFieldsImporting(FormFieldsImportEventArgs args)
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{
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eventName = "FormFieldsImporting";
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Console.WriteLine($"Form fields are being imported");
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// args.Cancel = true; //cancels the import process
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// Implement additional logic, such as logging or UI updates
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}
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void OnFormFieldsExported(FormFieldsExportedEventArgs args)
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{
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eventName = "FormFieldsExported";
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Console.WriteLine($"Form fields are exported Successfully");
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// Implement additional logic, such as logging or UI updates
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}
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void OnFormFieldsImported(FormFieldsImportedEventArgs args)
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{
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eventName = "FormFieldsImported";
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Console.WriteLine($"Form fields are imported Successfully");
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// Implement additional logic, such as logging or UI updates
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}
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void OnFormFieldsExportFailed(FormFieldsExportFailedEventArgs args)
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{
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eventName = "FormFieldsExportFailed";
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Console.WriteLine($"Form field export is failed: {args.ErrorDetails}");
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// Implement additional logic, such as logging or UI updates
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}
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void OnFormFieldsImportFailed(FormFieldsImportFailedEventArgs args)
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{
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eventName = "FormFieldsImportFailed";
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Console.WriteLine($"Form field Import is failed: {args.ErrorDetails}");
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// Implement additional logic, such as logging or UI updates
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}
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}

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