asp.net上传文件的问题

CuteEditor.dll<%@ Register Assembly="CuteEditor" Namespace="CuteEditor" TagPrefix="CE" %>
        <CE:Uploader ID="Uploader1" runat="server" InsertText="Uploader控件"
            MultipleFilesUpload="true">
            <ValidateOption AllowedFileExtensions="*.jpg;*;gif;*.bmp;*.png" MaxSizeKB="2048" />
        </CE:Uploader>
需要dll 邮件给我 [email protected]

这个用上传控件是做不到的，找一个flash上传的

可以，通过JS。ASP.NET JQuery无刷新上传附件示例

可以，
运用<input type="file" run="server" id="Upfile" style="display:none" />
<input type="button" id="disFile" onclick="方法使Upfile点击显示对话框" />
比如
function FnDisFile()
{
  document.getElementById("Upfile").click();//显示文件选择
  var _fName=document.getElementById("Upfile").value;
  你上传的按钮.click();
}在这里我们得认识一点，关于alert、comfirm、文件选择之类的，他们是模式窗口，可以将js线程暂停（姑且这么认为），当你点确定按钮后，线程释放继续执行。这个可以体会一下模式窗口

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="AttachmentUpload.aspx.cs"
    Inherits="Account_AttachmentUpload" %><html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>上传审核资料</title>
    <link rel="stylesheet" href="/css/style.css" type="text/css">
    <style type="text/css">
    .AStyle
    {
     color:Blue;
     font-size:15px;
     cursor:hand;
    }
    </style>    <script language="javascript" type="text/javascript" src='<%=Page.ResolveUrl("~/JS/jquery.js")%>'>
    </script></head>
<body class="body_bg">
    <form id="form1" runat="server">
        <table width="100%" border="6" cellpadding="6" cellspacing="6" align="center">
            <tr bgcolor="#fefce3">
                <td>
                    <table width="100%" border="0" cellspacing="2" cellpadding="2">
                        <tr>
                            <td bgcolor="#FFFFFF">
                                <table style="margin-top: 5px; margin-left: 5px; width: 100%;">
                                    <tr>
                                        <td colspan="2">
                                            <table width="100%" border="0" cellspacing="0" cellpadding="0">
                                                <tr>
                                                    <td>
                                                        <img src="/images/dian_1.gif" border="0" align="absmiddle"><span style="color: #ff8200;
                                                            font-size: 13px; font-weight: bold">上传审核资料</span></td>
                                                    <td align="right" id="sure" onclick="window.close()">
                                                        <img src="/images/close.gif" border="0" align="absmiddle">
                                                    </td>
                                                </tr>
                                            </table>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td colspan="2" height="1" background="/images/shd_22.gif">
                                        </td>
                                    </tr>
                                    <tr>
                                        <td height="32" width="30%" align="right">
                                            请选择上传资料的类型：</td>
                                        <td>
                                            <asp:DropDownList ID="ddlCategory" runat="server" OnSelectedIndexChanged="ddlCategory_SelectedIndexChanged"
                                                AutoPostBack="True">
                                            </asp:DropDownList>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td height="32" align="right">
                                            自定义文件名：</td>
                                        <td>
                                            <asp:TextBox ID="txtName" runat="server" Width="260px"></asp:TextBox>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td align="right" valign="top" style="padding-top: 6px">
                                            请选择上传图片：</td>
                                        <td>
                                            <asp:FileUpload ID="FileUpload1" runat="server" Width="99%" />
                                            支持的文件格式：<span id="SupportFileTypes" style="color: Red"></span>
                                            <asp:Button ID="btnUpload" runat="server" OnClick="btnUpload_Click" Text="" Width="0"
                                                Height="0" />
                                            <span id="Notice" style="display: none; color: Red; width: 100%">正在上传中……</span>
                                        </td>
                                    </tr>
                                </table>
                            </td>
                        </tr>
                        <tr>
                            <td align="center">
                            </td>
                        </tr>
                    </table>
                </td>
            </tr>
        </table>
    </form>
</body><script type="text/javascript">
var FileUpload1 = document.getElementById("FileUpload1");
var form1 = document.getElementById("form1");
var Notice = document.getElementById("Notice");
var permitFileTypes = "jpg,jpeg,gif,png,giff,doc,pdf";
var support = document.getElementById("SupportFileTypes");

support.innerHTML = permitFileTypes.replace("|", " ");

FileUpload1.onchange = function() {
if (!PermitFileType(FileUpload1.value))
{
alert("只允许上传 " + permitFileTypes.replace("|", " ") + " 文件");
return;
}
var s = FileUpload1.value;
var img = new Image();
img.src = s;
if(img.fileSize>2048*1024){
alert("上传图片的最大限制为2M，请选择一个较小的文件上传");
return;
}
Notice.style.display = "inline";
document.getElementById("btnUpload").click();
};

function PermitFileType(filename)
{
var i = filename.lastIndexOf(".");
if (i == -1) return false;
var fileType = filename.substr(i + 1).toLowerCase();
if (permitFileTypes.indexOf(fileType) == -1)
return false;
return true;
}
</script></html>
后台：
  protected void btnUpload_Click(object sender, EventArgs e)
    {
        string fname = string.Empty;
        if (this.txtName.Text == "")
        {
            fname = FileUpload1.FileName.Replace(" ", "");
            string[] fext = fname.Split('.');
            fname = fext.Length > 5 ? fext[0].Substring(0, 5) : fext[0];
            fname = fname + "." + fext[1];
        }
        else
        {
            fname = this.txtName.Text.Trim();
        }        Hashtable attach = new Hashtable();
        attach["UserCode"] = this.SohodaiUserCode;
        attach["CategoryID"] = this.ddlCategory.SelectedValue;
        attach["Attachment"] = fname;     //文件名称
        attach["Location"] = CompUtility.UploadFile(this.SohodaiUserCode, "Attachment", this.FileUpload1); //数据库里存储地址是用户注册日期+用户名+类型+当前日期+文件名
        attach["AddDate"] = DateTime.Now;
        attach["ModifyDate"] = DateTime.Now;
        attach["DeleteFlag"] = 0;        #region 更新用户这一类的项目状态
        Hashtable examineresult = new ExamineResultRule().GetExamineResultByCondition(this.SohodaiUserCode, this.ddlCategory.SelectedValue);
        if (examineresult != null)
        {
            Hashtable htnew = new Hashtable();
            htnew["ExamineState"] = 0;
            examineResultRule.UpdateExamineResult(htnew, examineresult["ExamineResultID"].ToString());
        }
        #endregion        try
        {
            userAttachment.InsertUserAttachment(attach);
        }
        catch (Exception ex)
        {            throw ex;
        }
    Response.Write("<script defer>window.opener.document.all('ctl00_ContentPlaceHolder2_btnFresh').click();</script>");
    }

应该可以的，用js加ajax应该就可以了，不过这种需求貌似不好用，体验性不太好吧

调试易

asp.net上传文件的问题

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