怎样的base64字符串非常大量绑定剑道格？ [英] How do I bind very huge amount of base64 string in kendo grid?

问题描述

我要加载被装订成图像和剑道电网音响控制的base64字符串的巨量。但数据可以在电网无法加载，我尝试了超过24行，没关系。在过去的30行，它可能不是一定要在电网负荷。我该如何解决这个问题？任何帮助！我也COM preSS的字符串的base64，it'not正常工作。我想COM preSS原始文件大小的两倍大小。使用的文件类型为JPG，WAV，PCM，3GPP和3GP。

下面是我的模型，

 字节公众[] {MULTIMEDIANOTEDATA获得;组; }    公共字符串strMULTIMEDIANOTEDATA {搞定;组; }    公共字符串MULTIMEDIANOTEDATA64
    {
        得到
        {
            返回MULTIMEDIANOTEDATA！= NULL？ Convert.ToBase64String（MULTIMEDIANOTEDATA）：空;
        }
    }
 

下面是我的控制器，

 公众的ActionResult GetNoteItems（[DataSourceRequest] DataSourceRequest要求）
    {
        //获取模型
        清单＆LT; NotesModel＆GT;注=新的List＆LT; NotesModel＆GT;（）;        清单＆LT; NotesModel＆GT; lstNotes =（新CitationFactory(Session[Constants.Security.AIConnectionStringSessionVariableName].ToString())).GetNotes();        的foreach（在lstNotes VAR项）
        {
            Notes.Add（新NotesModel
            {
                NOTEDATE = item.NOTEDATE，
                NOTESMEMO = item.NOTESMEMO，
                MULTIMEDIANOTEDATATYPE = item.MULTIMEDIANOTEDATATYPE.ToString（）。替换（\\，），
                MULTIMEDIANOTEFILENAME = item.MULTIMEDIANOTEFILENAME，
                MULTIMEDIANOTEDATA = item.MULTIMEDIANOTEDATA，
            }）;
        }        INT总= 0;
        如果（Notes.Any（））
            总= Notes.Count（）;        VAR的结果=新DataSourceResult
        {
            数据=注，
            总=总
        };
        VAR jsonResult = JSON（结果，JsonRequestBehavior.AllowGet）;
        jsonResult.MaxJsonLength = int.MaxValue;
        返回jsonResult;
    }
 

解决方案

我发现我的解决方案如下：

在我看来：

  @（Html.Kendo（）网格和LT。NotesModel＆GT;（）
    .DataSource（数据源=＆GT; dataSource.Ajax（）读（读=方式＆gt;。read.Action（GetNoteItems，引文））ServerOperation（真）.PageSize（20）
    ））
 

在我的控制器：

  INT当前页= request.Page;
        INT的pageSize = request.PageSize;        如果（当前是== 1）
        {
            partialNote = Notes.Take（pageSize的）.T​​oList（）;
        }
        其他
        {
            partialNote = Notes.Skip（当前页* pageSize的 -  20）。取（pageSize的）.T​​oList（）;
        }
 

我以前跳过和采取的LINQ功能的，这对我来说做工精细。在controller.You仅用于分页内部逻辑可以遵循此链接<一个href=\"http://docs.telerik.com/kendo-ui/third-party/tutorials/webforms/asp-net-hello-kendo-ui-part-1#handle-request-parameters\" rel=\"nofollow\">http://docs.telerik.com/kendo-ui/third-party/tutorials/webforms/asp-net-hello-kendo-ui-part-1#handle-request-parameters

我希望这个解决方案将是解决您剑道电网数据加载分页问题更好。好运：）

I want to load huge amount of base64 string that was bind into image and audio control in kendo grid. But the data cannot load in grid, i try for over 24 rows , that's ok. For over 30 rows , it might not sure to load in grid. How do I solved this problem? Anyone Help !!! I also compress that base64 string , it'not work properly. I want to compress double size of original file size. The use of file types are jpeg, wav, pcm, 3gpp, and 3gp.

Here is my model,

    public byte[] MULTIMEDIANOTEDATA { get; set; }

    public string strMULTIMEDIANOTEDATA { get; set; }

    public string MULTIMEDIANOTEDATA64
    {
        get
        {
            return MULTIMEDIANOTEDATA != null ? Convert.ToBase64String(MULTIMEDIANOTEDATA) : null;
        }
    }

Here is my controller,

    public ActionResult GetNoteItems([DataSourceRequest] DataSourceRequest       request)
    {
        //get models            
        List<NotesModel> Notes = new List<NotesModel>();

        List<NotesModel> lstNotes = (new CitationFactory(Session[Constants.Security.AIConnectionStringSessionVariableName].ToString())).GetNotes();

        foreach (var item in lstNotes)
        {
            Notes.Add(new NotesModel
            {
                NOTEDATE = item.NOTEDATE,
                NOTESMEMO = item.NOTESMEMO,
                MULTIMEDIANOTEDATATYPE = item.MULTIMEDIANOTEDATATYPE.ToString().Replace("\"", ""),
                MULTIMEDIANOTEFILENAME = item.MULTIMEDIANOTEFILENAME,
                MULTIMEDIANOTEDATA = item.MULTIMEDIANOTEDATA,                   
            });
        }

        int total = 0;
        if (Notes.Any())
            total = Notes.Count();

        var result = new DataSourceResult
        {
            Data = Notes,
            Total = total
        };
        var jsonResult = Json(result, JsonRequestBehavior.AllowGet);
        jsonResult.MaxJsonLength = int.MaxValue;           
        return jsonResult;
    }

解决方案

I found my solution as follows:

In my view:

@(Html.Kendo().Grid<NotesModel>()        
    .DataSource(dataSource => dataSource.Ajax().Read(read => read.Action("GetNoteItems", "Citation")).ServerOperation(true).PageSize(20)
    ))

In my controller:

        int currentPage = request.Page;
        int pageSize = request.PageSize;

        if (currentPage == 1)
        {
            partialNote = Notes.Take(pageSize).ToList();
        }
        else
        {
            partialNote = Notes.Skip(currentPage * pageSize - 20).Take(pageSize).ToList();
        }

I used Skip and Take Linq functions for that, it's fine work for me. Only used pagination internal logic in controller.You can follow this link http://docs.telerik.com/kendo-ui/third-party/tutorials/webforms/asp-net-hello-kendo-ui-part-1#handle-request-parameters

I hope this solution would be better for solving your kendo grid data load paging problem. Good Luck :)

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