/// <summary>
/// Renders a partial MVC view to string. Use this method to render
/// a partial view that doesn't merge with _Layout and doesn't fire
/// _ViewStart.
/// </summary>
/// <param name="viewPath">
/// The path to the view to render. Either in same controller, shared by
/// name or as fully qualified ~/ path including extension
/// </param>
/// <param name="model">The model to pass to the viewRenderer</param>
/// <param name="controllerContext">Active controller context</param>
/// <returns>String of the rendered view or null on error</returns>
public static string RenderPartialView(string viewPath, object model = null,
ControllerContext controllerContext = null)
{
ViewRenderer renderer = new ViewRenderer(controllerContext);
return(renderer.RenderPartialViewToString(viewPath, model));
}
protected override void DoRender(HtmlTextWriter output)
{
using (new RenderingDiagnostics(output, Path + " (statically bound)", Cacheable, VaryByData, VaryByDevice, VaryByLogin, VaryByParm, VaryByQueryString, VaryByUser, ClearOnIndexUpdate, GetCachingID()))
{
Assert.IsNotNull(Path, "Path was null or empty, and must point to a valid virtual path to a Razor rendering.");
var renderer = new ViewRenderer();
var result = renderer.RenderPartialViewToString(Path, Model);
output.Write(result);
}
}
protected override void DoRender(HtmlTextWriter output)
{
using (new RenderingDiagnostics(output, Path + " (statically bound)", Cacheable, VaryByData, VaryByDevice, VaryByLogin, VaryByParm, VaryByQueryString, VaryByUser, ClearOnIndexUpdate, GetCachingID()))
{
Assert.IsNotNull(Path, "Path was null or empty, and must point to a valid virtual path to a Razor rendering.");
var renderer = new ViewRenderer();
var result = renderer.RenderPartialViewToString(Path, Model);
output.Write(result);
}
}
protected override void RenderModel(System.Web.UI.HtmlTextWriter writer)
{
Assert.IsNotNull(ViewPath, "ViewPath was null or empty, and must point to a valid virtual path to a Razor rendering.");
var viewData = new Dictionary <string, object>();
viewData[MetadataConstants.RenderingParametersViewDataKey] = RenderingParameters;
var renderer = new ViewRenderer(ControllerContext);
var result = renderer.RenderPartialViewToString(ViewPath, Model, viewData);
writer.Write(result);
}
public async Task RenderPartialViewToString_should_successfully_render_view_into_string()
{
// Arrange.
string data = "this is the data";
string partialViewPath = "temp/view/myview";
// Http context
Mock <HttpContext> mockContext = new Mock <HttpContext>();
Mock <IFeatureCollection> mockFeaturesColl = new Mock <IFeatureCollection>();
Mock <IRoutingFeature> mockRoutingFeature = new Mock <IRoutingFeature>();
Mock <RouteData> mockRoutData = new Mock <RouteData>();
mockRoutingFeature.Setup(m => m.RouteData).Returns(mockRoutData.Object);
mockFeaturesColl.Setup(m => m.Get <IRoutingFeature>()).Returns(mockRoutingFeature.Object);
mockContext.Setup(m => m.Features).Returns(mockFeaturesColl.Object);
mockHttpContextAccessor.Setup(m => m.HttpContext).Returns(mockContext.Object);
// Razor view engine mocks
Mock <IViewEngine> mockEngine = new Mock <IViewEngine>();
Mock <IView> mockView = new Mock <IView>();
mockRazorViewEngine.Setup(m => m.FindView(It.IsAny <ActionContext>(), It.IsAny <string>(), It.IsAny <bool>())).Returns(ViewEngineResult.Found(partialViewPath, mockView.Object));
IViewRenderer renderer = new ViewRenderer(mockViewOptions.Object, mockRazorViewEngine.Object, mockTempDataProvider.Object, mockHttpContextAccessor.Object);
// IOptions
Mock <MvcViewOptions> mockMvcOptions = new Mock <MvcViewOptions>();
MvcViewOptions opt = new MvcViewOptions();
opt.HtmlHelperOptions = new HtmlHelperOptions();
//mockMvcOptions.Setup(m => m.HtmlHelperOptions).Returns(new HtmlHelperOptions());
mockViewOptions.Setup(m => m.Value).Returns(opt);
// Act.
string htmlString = await renderer.RenderPartialViewToString(data, partialViewPath);
// Assert.
// since we are not passing in any view ... the result html string should be empty.
Assert.IsEmpty(htmlString);
}
public IHttpActionResult GetProductList(string brand, string category, decimal price = 0, bool isSortDes = false, int pageNumber = 1)
{
try
{
var productlist = _productListingService.GetListProduct(brand, price, category, isSortDes, pageNumber);
var viewrenderer = new ViewRenderer();
var html = viewrenderer.RenderPartialViewToString("~/Views/Shared/_ProductList.cshtml", productlist.Products);
var response = new ProductListResponse()
{
Html = html,
HasMore = (pageNumber * productlist.PageSize) < productlist.TotalProducts
};
return(Ok(response));
}
catch (Exception)
{
return(BadRequest());
}
}
