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在ASP.NET中的AjaxFileUpload UploadComplete事件上重新加载GridView或Repeater_Asp.net_Ajax_File Upload - Fatal编程技术网

在ASP.NET中的AjaxFileUpload UploadComplete事件上重新加载GridView或Repeater

在ASP.NET中的AjaxFileUpload UploadComplete事件上重新加载GridView或Repeater,asp.net,ajax,file-upload,Asp.net,Ajax,File Upload,Hi在AjaxFileUpload UploadComplete事件之后是否仍有更新(Gridview或Repeater数据)。我想做的是使用AjaxFileUpload上传多张图片,一旦上传文件,它就会将这些图片显示到GridView或Repeater控件中 除非触发按钮单击事件,否则无法执行此操作 有什么想法吗?将隐藏按钮放到表单上,并将此函数附加到extender的onClient LoadComplete事件处理程序 <asp:Button runat="server" ID="H

Hi在AjaxFileUpload UploadComplete事件之后是否仍有更新(Gridview或Repeater数据)。我想做的是使用AjaxFileUpload上传多张图片,一旦上传文件,它就会将这些图片显示到GridView或Repeater控件中

除非触发按钮单击事件,否则无法执行此操作


有什么想法吗?

将隐藏按钮放到表单上,并将此函数附加到extender的
onClient LoadComplete
事件处理程序

<asp:Button runat="server" ID="HiddenButton" OnClick="RefreshGridView" style="display:none;" />

function uploadComplete(sender, args) {
    for (var index = 0; index < sender._filesInQueue.length; ++index) {
        if (!sender._filesInQueue[index]._isUploaded) {
            return;
        }
    }
    __doPostBack("<%= HiddenButton.UniqueID %>", "");
})

函数上载完成(发送方,参数){
对于(var index=0;index

然后,单击此按钮刷新您的GridView。

此代码检查上载的文件,使用文件信息创建电子邮件,使用链接向文件的目标用户发送电子邮件。它还将所有信息存储到数据库中。上载页面上有一个gridview,其中列出了已上载的所有文件。它会在加载文件后更新。我想你可以从中得到你所需要的

Partial Class upload_Default
Inherits System.Web.UI.Page

Protected Sub UploadButton2_Click(sender As Object, e As EventArgs)
    Dim fileGuid As String
    fileGuid = Guid.NewGuid.ToString


    If AsyncFileUpload1.HasFile Then
        If AsyncFileUpload1.FileContent.Length < 20971500 Then
            Try

                Dim fileSizeB As Integer = AsyncFileUpload1.PostedFile.ContentLength
                Dim fileSize = fileSizeB / 1024

                Dim filename As String = Path.GetFileName(AsyncFileUpload1.FileName)
                Dim fileNameTwo As String = Trim(fileGuid) + Trim(filename)

                Dim ExistPdfFilenamOPO As String
                ExistPdfFilenamOPO = Server.MapPath("~/uploads/files/") & filename

                If File.Exists(ExistPdfFilenamOPO) Then
                    Label2.Text = "File is already there"
                Else

                    Dim saveDir As String = "\Uploads\files\"
                    Dim appPath As String = Request.PhysicalApplicationPath
                    Dim savePath As String = appPath + saveDir + _
                    Server.HtmlEncode(AsyncFileUpload1.FileName)
                    AsyncFileUpload1.SaveAs(savePath)

                    UploadStatusLabel2.Text = "Upload status: File uploaded."
                    Label2.Text = ""

                    ' Email
                    Dim sr As New StreamReader(appPath & "EmailTemplates/FileUpload.htm")
                    Dim FName As String = TextBoxFName.Text
                    Dim LName As String = TextBoxLName.Text
                    Dim Email As String = TextBoxEmail.Text
                    Dim fullPath As String
                    fullPath = "https://website.com/uploads/default.aspx?fileGuid=" + fileGuid

                    Dim message As New MailMessage()
                    message.IsBodyHtml = True
                    message.From = New MailAddress("Your email")
                    message.[To].Add(New MailAddress(Email))

                    message.Subject = "The file you requested from SRTR"
                    message.Body = sr.ReadToEnd()
                    sr.Close()

                    message.Body = message.Body.Replace("<%FName%>", FName)
                    message.Body = message.Body.Replace("<%LName%>", LName)
                    message.Body = message.Body.Replace("<%Email%>", Email)
                    message.Body = message.Body.Replace("<%FileName%>", filename)
                    message.Body = message.Body.Replace("<%VerificationUrl%>", fullPath)

                    Dim client As New SmtpClient()
                    client.Send(message)

                    'Insert in to t_UploadFiles
                    Dim datenow As Date = System.DateTime.Now()
                    Dim ExDate As Date = datenow.AddDays(15)
                    Dim Downloaded As Boolean = False

                    Dim connectionString As String = ConfigurationManager.ConnectionStrings("ConnectionString").ConnectionString
                    Dim updateSql As String = "INSERT t_UploadFiles (FileGuid, FileName, FileSize, FName, LName, Email, UploadDate, ExDate, Downloaded) SELECT @FileGuid, @FileName, @FileSize, @FName, @LName, @Email, @UploadDate, @ExDate, @Downloaded"
                    Using myConnection As New SqlConnection(connectionString)
                        myConnection.Open()
                        Dim myCommand As New SqlCommand(updateSql, myConnection)
                        myCommand.Parameters.AddWithValue("@FileGuid", fileGuid.Trim())
                        myCommand.Parameters.AddWithValue("@FileName", filename.Trim())
                        myCommand.Parameters.AddWithValue("@FileSize", fileSize)
                        myCommand.Parameters.AddWithValue("@FName", FName.Trim())
                        myCommand.Parameters.AddWithValue("@LName", LName.Trim())
                        myCommand.Parameters.AddWithValue("@Email", Email)
                        myCommand.Parameters.AddWithValue("@UploadDate", datenow)
                        myCommand.Parameters.AddWithValue("@ExDate", ExDate)
                        myCommand.Parameters.AddWithValue("@Downloaded", Downloaded)

                        myCommand.ExecuteNonQuery()
                        myConnection.Close()
                    End Using
                    articleListXX.DataBind()

                End If

            Catch ex As Exception
                UploadStatusLabel2.Text = "Upload status: The file could not be uploaded.<br/>The following error occured: " + ex.Message
            End Try
        Else
            UploadStatusLabel2.Text = "File is too large."
        End If
    Else
        UploadStatusLabel2.Text = "You did not specify a file to upload."
    End If

End Sub

End Class
部分类上载\u默认值
继承System.Web.UI.Page
受保护的子上载按钮2\u单击(发件人作为对象,e作为事件参数)
将文件GUID设置为字符串
fileGuid=Guid.NewGuid.ToString
如果AsyncFileUpload1.HasFile,则
如果AsyncFileUpload1.FileContent.Length<20971500,则
尝试
Dim fileSizeB As Integer=AsyncFileUpload1.PostedFile.ContentLength
Dim fileSize=fileSizeB/1024
Dim文件名为String=Path.GetFileName(AsyncFileUpload1.filename)
Dim filename2作为String=Trim(fileGuid)+Trim(filename)
Dim EXISTDFFILENAMOPO作为字符串
ExistPdfFilenamOPO=Server.MapPath(“~/uploads/files/”)&filename
如果File.ExistPdfFilenamOPO存在,则
Label2.Text=“文件已经存在”
其他的
Dim saveDir As String=“\Uploads\files\”
Dim appPath作为字符串=Request.PhysicalApplicationPath
将保存路径设置为字符串=appPath+saveDir+_
Server.HtmlEncode(AsyncFileUpload1.FileName)
AsyncFileUpload1.SaveAs(保存路径)
UploadStatusLabel2.Text=“上载状态:文件已上载。”
Label2.Text=“”
“电子邮件
Dim sr作为新的StreamReader(appPath和“EmailTemplates/FileUpload.htm”)
Dim FName As String=TextBoxFName.Text
Dim LName As String=TextBoxLName.Text
Dim Email As String=TextBoxEmail.Text
将完整路径设置为字符串
完整路径=”https://website.com/uploads/default.aspx?fileGuid=“+fileGuid
将消息变暗为新邮件消息()
message.IsBodyHtml=True
message.From=新邮件地址(“您的电子邮件”)
邮件。[收件人]。添加(新邮件地址(电子邮件))
message.Subject=“您从SRTR请求的文件”
message.Body=sr.ReadToEnd()
高级关闭()
message.Body=message.Body.Replace(“,FName)
message.Body=message.Body.Replace(“,LName”)
message.Body=message.Body.Replace(“,电子邮件”)
message.Body=message.Body.Replace(“,文件名)
message.Body=message.Body.Replace(“,完整路径)
作为新SmtpClient()的Dim客户端
客户端发送(消息)
'插入到t_上载文件
Dim datenow As Date=System.DateTime.Now()
Dim ExDate As Date=datenow.AddDays(15)
作为布尔值下载的Dim=False
Dim connectionString As String=ConfigurationManager.connectionString(“connectionString”).connectionString
Dim updateSql As String=“插入上传文件(文件GUID、文件名、文件大小、FName、LName、电子邮件、上传日期、ExDate、下载)选择@FileGuid、@FileName、@FileSize、@FName、@LName、@Email、@UploadDate、@ExDate、@Downloaded”
将myConnection用作新的SqlConnection(connectionString)
myConnection.Open()
将myCommand设置为新的SqlCommand(更新SQL、myConnection)
myCommand.Parameters.AddWithValue(“@FileGuid”,FileGuid.Trim())
myCommand.Parameters.AddWithValue(“@FileName”,FileName.Trim())
myCommand.Parameters.AddWithValue(“@FileSize”,FileSize)
myCommand.Parameters.AddWithValue(“@FName”,FName.Trim())
myCommand.Parameters.AddWithValue(“@LName”,LName.Trim())
myCommand.Parameters.AddWithValue(“@Email”,Email)
myCommand.Parameters.AddWithValue(“@UploadDate”,datenow)
myCommand.Parameters.AddWithValue(“@ExDate”,ExDate)
myCommand.Parameters.AddWithValue(“@Downloaded”,已下载)
myCommand.ExecuteOnQuery()
myConnection.Close()
终端使用
articleListXX.DataBind()
如果结束
特例
UploadStatusLabel2.Text=“上载状态:无法上载文件。
发生以下错误:“+ex.Message” 结束尝试 其他的 UploadStatusLabel2.Text=“文件太大。” 如果结束 其他的 UploadStatusLabel2.Text=“您没有指定要上载的文件。” 如果结束 端接头 末级
好的,伙计们,谢谢你们的贡献,很抱歉做出了这样的贡献
<script type="text/javascript">
        function showUploadedPic()
        {           
            __doPostBack('btnAdd', null);
        }
</script>

<cc1:AjaxFileUpload ID="AjaxFileUpload1" runat="server" OnUploadComplete="AjaxFileUpload1_UploadComplete" ThrobberID="myThrobber" MaximumNumberOfFiles="10" AllowedFileTypes="jpg,jpeg" OnClientUploadComplete="showUploadedPic" />


<asp:UpdatePanel ID="UpdatePanel1" runat="server">           
                <asp:Repeater ID="Repeater1" runat="server">
                    <ItemTemplate>
                        <asp:Image ID="Image1" runat="server" ImageUrl="<%# Container.DataItem %>" height="100"/>
                    </ItemTemplate> 
                </asp:Repeater>                
            </ContentTemplate>
            <Triggers>                
                <asp:AsyncPostBackTrigger ControlID="btnAdd" EventName="Click" />
            </Triggers>
        </asp:UpdatePanel>
protected void btnAdd_Click(object sender, EventArgs e)
    {
        populatePic();         
    }



protected void AjaxFileUpload1_UploadComplete(object sender, AjaxControlToolkit.AjaxFileUploadEventArgs e)
    {
        string filePath = Server.MapPath("~/files/") + e.FileName;
        AjaxFileUpload1.SaveAs(filePath);
        createThumbnail();         
    }  
<asp:Button runat="server" ID="HiddenButtonFileUpload" 
<ajax:AjaxFileUpload ID="AjaxFileUpload11" runat="server" 
MaximumNumberOfFiles="3" AllowedFileTypes="txt,xls,xlsx,doc,docx,pdf" 
Width="400px" 
                                    OnUploadComplete="OnUploadComplete" 
OnClientUploadStart="UploadStart" OnClientUploadCompleteAll="UploadComplete" 
ClearFileListAfterUpload="true" />

    function UploadComplete() {
        unblock();
        __doPostBack("<%= HiddenButtonFileUpload.UniqueID %>", "");
    }

 Code Behind : 

    protected void RefreshGridView(object sender, EventArgs e)
    {
        BindForm(); // refresh your gridview
    }