telerik upload 在silv

打开SL工程添加引用Telerik.Windows.Controls.dll and Telerik.Windows.Controls.Input.dll. 以及在Page.xaml中添加RadUpload控件 <telerikInput:RadUpload     x:Name="radUpload"     Filter="All Files(*.*)|*.*"     FilterIndex="3"     IsAutomaticUpload="False"     OverwriteExistingFiles="True"     UploadServiceUrl="../RadUploadHandler.ashx"     TargetFolder="MyStorageFolder"     FileUploaded="radUpload_FileUploaded"     >   </telerikInput:RadUpload>  

using System; using System.Collections.Generic; using System.Linq; using System.Net; using System.Windows; using System.Windows.Controls; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Animation; using System.Windows.Shapes; using Telerik.Windows.Controls; using Telerik.Windows; using System.Windows.Media.Imaging;

namespace TelerikDemo {     public partial class MainPage : UserControl     {         public MainPage()         {             InitializeComponent();         }

        private void radUpload_FileUploaded(object sender, FileUploadedEventArgs e)         {             RadUploadSelectedFile uploadedFile = e.SelectedFile;             // CustomData is a Dictionary property that stores the new file name in value of a key.             // This key is set in the RadUploadHandler.ashx.cs             string newFileName = e.HandlerData.CustomData["NewFileName"].ToString();

            if (this.radUpload.CurrentSession.FileNameUploadItem.ContainsKey(uploadedFile.Name))             {                 RadUploadItem item = this.radUpload.CurrentSession.FileNameUploadItem[uploadedFile.Name];                 if (item != null)                 {                     // Retrieve the TextBlock that will hold new file name                     FrameworkElement element = GetCustomTagControl(item, "NewFileName");                     if (element != null)                     {                         TextBlock textBlock = element as TextBlock;                         if (textBlock != null)                         {                             textBlock.Text = newFileName;                             textBlock.Visibility = Visibility.Visible;                         }                     }                 }             }         }

        private static FrameworkElement GetCustomTagControl(DependencyObject control, string name)         {             for (int i = 0; i < VisualTreeHelper.GetChildrenCount(control); i++)             {                 DependencyObject child = VisualTreeHelper.GetChild(control, i);                 FrameworkElement element = child as FrameworkElement;

                if (element != null)                 {                     if (0 == string.Compare(element.Name, name, StringComparison.InvariantCultureIgnoreCase))                     {                         return element;                     }                 }                 element = GetCustomTagControl(child, name);                 if (element != null)                 {                     return element;                 }             }             return null;         }     } } 打开RadUploadDemo.Web并且添加引用Telerik.Windows.RadUploadHandler.dll.  在这之后，右击RadUploadDemo.Web选择添加新item，添加一个名为RadUploadHandler.ashx的 Generic Handler，也添加一个新文件夹名为MyStorageFolder

打开RadUploadHandler.ashx文件，你的handler需继承Telerik.Windows.RadUploadHandler并且重写一部分重要的函数

<%@ WebHandler Language="C#" Class="RadUploadHandler" %>

using System; using System.Web; using System.Collections.Generic;

public class RadUploadHandler : Telerik.Windows.RadUploadHandler {

    private string newFileName = string.Empty;

    //public override void ProcessStream()     //{     //    if (this.IsNewFileRequest())     //    {     //        this.ResultChunkTag = string.Format("[{0;yyyymmdd.hhmmss}]",DateTime.Now);     //    }     //    else if (this.FormChunkTag != null)     //    {     //        this.ResultChunkTag = this.FormChunkTag;     //    }     //    base.ProcessStream();     //}

    public override Dictionary<string, object> GetAssociatedData()     {         Dictionary<string, object> dict = base.GetAssociatedData();         if (!string.IsNullOrEmpty(newFileName))         {             dict.Add("NewFileName", this.newFileName);         }         return dict;     }

    public override string GetFilePath(string fileName)     {         fileName = base.GetFilePath(this.GetFileName(fileName));         return fileName;     }

    private string GetFileName(string fileName)     {         if (this.IsNewFileRequest())         {             this.ResultChunkTag = string.Format(" [{0:yyyymmdd_hhmmss}]", DateTime.Now);         }

        else if (this.FormChunkTag != null)         {             this.ResultChunkTag = this.FormChunkTag;         }

        if (this.ResultChunkTag != null)         {             int i = fileName.LastIndexOf('.');             if (i >= 0)             {                 fileName = fileName.Insert(i, this.ResultChunkTag);             }         }         return this.newFileName = fileName;     } }