小编Sof*_*erd的帖子

如何从MVC动作控制器方法调用Web API方法.这是我正在尝试的,这是我的控制器方法:

public ActionResult ProductDetail(long id)
{
    using (var client = new HttpClient())
    {
        var productDetailUrl = Url.RouteUrl(
            "DefaultApi",
            new { httproute = "", controller = "ProductDetails", id = id },
            Request.Url.Scheme
        );
        var model = client
                    .GetAsync(productDetailUrl)
                    .Result
                    .Content.ReadAsAsync<ProductItems>().Result;

        return View(model);
    }
}

我的Web API方法:

private ProductEntities products = new ProductEntities();

public IEnumerable<ProductItems> GetProductDetail(int ID)
{            
   var produc= products.ExecuteStoreQuery<ProductItems>(
            "GetProductDetail @ProductID ", 
            new SqlParameter("@ProductID", ID)); 

   return produc;
}

当我这样做时,我在返回数据后,在我的MVC操作方法中收到错误@ var model

"Newtonsoft.Json.JsonSerializationException:无法将JSON数组反序列化"(即[1,2,3])为"ProductDetails.Models.ProductItems"类型.反序列化类型必须是数组或实现集合接口,如IEnumerable,ICollection或IList.要强制JSON数组反序列化,请将JsonArrayAttribute添加到该类型.第1行,第1位."

任何人都可以帮我这样做...或者建议我任何其他最好的方法或纠正我,如果我在任何地方做错了...我必须在我的视图中显示返回的数据...数据应该返回给我调节器

大家好,我有这种格式的CSV文件:

**CSV Format1**

  ||OrderGUID||OrderItemID||Qty||SKUID||TrackingNumber||TotalWeight||DateShipped||DateDelivered||ShippingStatusId||OrderShippingAddressId
  ||5        ||3          ||2  ||12312||aasdasd       ||24         ||2012-12-2010||            || 10025          ||10028
  ||5        ||4          ||3  ||113123||adadasdasd   ||22         ||2012-12-2012||            ||10026           ||10028



**CSV Format2**

    ||"OrderGUID"||"OrderItemID"||"Qty"||"SKUID"||"TrackingNumber"||"TotalWeight"||"DateShipped"||"DateDelivered"||"ShippingStatusId"||"OrderShippingAddressId"||
    ||"5"        ||"3"          ||"2"  ||"12312"||"aasdasd"       ||"24"         ||"2012-12-2010"||""            || "10025"          ||"10028"||
    ||"5"        ||"4"          ||"3"  ||"113123"||"adadasdasd"   ||"22"         ||"2012-12-2012"|| "2012-12-2010" ||"10026"           ||"10028"||

我必须阅读这些文件而不将它们保存在服务器上.谁能帮我？如何读取此文件并插入我的数据库？如何修剪文件中的特殊字符？

这就是我要为文件上传做的事情:

[AcceptVerbs(HttpVerbs.Post)]
public ActionResult ImportTrackingNumber(FormCollection form,HttpPostedFileBase UploadedFile,TrackingNumbersModel Trackingnumbers)
{
    if (UploadedFile != null)
    {
        var allowedExtensions = new[] {".xlsx", ".csv"};
        if (UploadedFile.ContentLength > 0)
        {                   
            var extension = Path.GetExtension(UploadedFile.FileName);
            if (extension == ".xlsx")
            {
                //Need To code …

我要传递的内容:

       series: [{
                        name: 'Fixed bugs',
                        data: fixed,
                        pointWidth: 40
                    }, {
                        name: 'Assigned Bugs',
                        data:assigned,
                        pointWidth: 40
                    }, {
                        name: 'Re-Opened Bugs',
                        data: Reopened,
                        pointWidth: 40
                    },
                    {
                        name: 'Closed Bugs',
                        data: closed,
                        pointWidth: 40
                    }]

到这个图表,我有这样的数据:

     data: fixed=[3,5,5,8]
    data:assigned=[0,1,0,0] 

并遵循.现在我想显示零值的列...对我来说它没有显示列值为零.

我有一个文件上传功能,用户可以上传文件.我想限制用户上传某些文件类型.允许的类型是:.doc,.xlsx,.txt,.jpeg.

我怎么能这样做？

这是我的实际文件上传代码:

      public ActionResult UploadFile(string AttachmentName, BugModel model)
       {            
        BugModel bug = null;
        if (Session["CaptureData"] == null)
        {
            bug = model;
        }
        else
        {
            bug = (BugModel)Session["CaptureData"];
        }
        foreach (string inputTagName in Request.Files)
        {
            HttpPostedFileBase file1 = Request.Files[inputTagName];
            if (file1.ContentLength > 0)
            {
                string path = "/Content/UploadedFiles/" + Path.GetFileName(file1.FileName);
                string savedFileName = Path.Combine(Server.MapPath("~" + path));
                file1.SaveAs(savedFileName);
                BugAttachment attachment = new BugAttachment();
                attachment.FileName = "~" + path.ToString();
                attachment.AttachmentName = AttachmentName;
                attachment.AttachmentUrl = attachment.FileName;
                bug.ListFile.Add(attachment);
                model = bug;
                Session["CaptureData"] …

我正在尝试一种方法将数据绑定到饼图

  Public ActionResult Charts
  {
      Highcharts chart = new Highcharts("chart")
        .InitChart(new Chart { PlotShadow = false })
        .SetTitle(new Title { Text = "Browser market shares at a specific website, 2010" })
        .SetTooltip(new Tooltip { Formatter = "function() { return '<b>'+ this.point.name +'</b>: '+ this.percentage +' %'; }" })
        .SetPlotOptions(new PlotOptions
        {
            Pie = new PlotOptionsPie
            {
                AllowPointSelect = true,
                Cursor = Cursors.Pointer,
                DataLabels = new PlotOptionsPieDataLabels
                {
                    Color = ColorTranslator.FromHtml("#000000"),
                    ConnectorColor = ColorTranslator.FromHtml("#000000"),
                    Formatter = "function() { return '<b>'+ this.point.name …

大家好我有一个fileuplaod用户可以选择多个图像我想在上传之前显示所选图像的预览...目前我管它为单个图像预览如何为所选的多个图像提供预览

  function readURL(input) {
    var img = $(input).closest('div').find('img').first();
    var imgid=$(img).attr('id');
    if (input.files && input.files[0]) {
        alert(input.files);
        alert(input.files[0]);
        var reader = new FileReader();

        reader.onload = function (e) {
            $("#"+imgid)
                .attr('src', e.target.result);
        };

        reader.readAsDataURL(input.files[0]);
    }
}

 <input type="file"  accept="gif|jpg|jpeg|png" name="files[]" multiple onchange="readURL(this);" />

                    <img src="http://placehold.it/140x140" class="img-rounded" id="thumbnailimage">

请有人帮忙吗...