mvc部分视图转换成html字符串

public static class RenderViewTostring
{
/// <summary>
///将部分视图转成html 字符串方便我们扩展使用
/// </summary>
/// <param name="controller">The controller.</param>
/// <param name="viewName">Name of the view.</param>
/// <param name="model">The model.</param>
/// <returns></returns>
public static string RenderPartialView(this Controller controller, string viewName)
{
return RenderPartialView(controller, viewName, null);
}
/// <summary>
///将部分视图转成html 字符串方便我们扩展使用
/// </summary>
/// <param name="controller">The controller.</param>
/// <param name="viewName">Name of the view.</param>
/// <param name="model">The model.</param>
/// <returns></returns>
public static string RenderPartialView(this Controller controller, string viewName, object model)
{
if (string.IsNullOrEmpty(viewName))
viewName = controller.ControllerContext.RouteData.GetRequiredString("action"); controller.ViewData.Model = model;
using (var sw = new StringWriter())
{
ViewEngineResult viewResult = ViewEngines.Engines.FindPartialView(controller.ControllerContext, viewName);
var viewContext = new ViewContext(controller.ControllerContext, viewResult.View, controller.ViewData, controller.TempData, sw);
viewResult.View.Render(viewContext, sw);
// return sw.Encoding.EncodingName;
return sw.GetStringBuilder().ToString();
}
}
/// <summary>
/// 部分视图转成html
/// viewbag 和viewdata 访问是相通的.
/// ViewData["Hello"] = "Hello Boy!";
/// view ViewBag.Hello 就是访问上面这个;
/// </summary>
/// <param name="controller">The controller.</param>
/// <param name="viewName">Name of the view.</param>
/// <param name="model">The model.</param>
/// <param name="viewdataary">键值形式的对象</param>
/// <returns></returns>
public static string RenderPartialView(this Controller controller, string viewName, object model, params KeyValuePair<string, object>[] viewdataary)
{
if (string.IsNullOrEmpty(viewName))
viewName = controller.ControllerContext.RouteData.GetRequiredString("action");
controller.ViewData.Model = model;
if (viewdataary != null && viewdataary.Any())
{
foreach (var item in viewdataary)
{
controller.ViewData.Add(item);
}
}
return ControllserRenderView(controller, viewName);
} /// <summary>
/// Controllsers the render view.
/// </summary>
/// <param name="controller">The controller.</param>
/// <param name="viewName">Name of the view.</param>
/// <returns></returns>
private static string ControllserRenderView(Controller controller, string viewName)
{
using (var sw = new StringWriter())
{
ViewEngineResult viewResult = ViewEngines.Engines.FindPartialView(controller.ControllerContext, viewName);
var viewContext = new ViewContext(controller.ControllerContext, viewResult.View, controller.ViewData, controller.TempData, sw);
viewResult.View.Render(viewContext, sw);
return sw.GetStringBuilder().ToString();
}
}
}
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