文件上传 需要在自己建立的工程里建一个 存储文件的文件夹
控件js代码 <script> function AddAttachments() { document.getElementById('attach').innerText = "继续添加附件"; tb = document.getElementById('attAchments'); newRow = tb.insertRow(); newRow.insertCell().innerHTML = "<input class='InputCss' name='File' size='82' type='file' contenteditable='false'> <input id='deleteInfo' class='ButtonCss' type=button value='删除' onclick='delFile(this.parentElement.parentElement.rowIndex)'><br>"; UploadFileLabel.Text = ""; } function delFile(index) { document.getElementById('attAchments').deleteRow(index); tb.rows.length > 0 ? document.getElementById('attach').innerText = "添加附件" : document.getElementById('attach').innerText = "继续添加附件"; UploadFileLabel.Text = ""; } </script>
前台 <tr> <td height="30" align="right" class="textstyle"> 上传附件 : </td> <td colspan="2"> <table id="attAchments" width="100%" class="gbtext"> <tr id="tr" runat="server"> <td class="style1"> <a id="attach" href="javascript:;" name="attach" onclick="AddAttachments();" style="font-size: 9pt; font-family: 宋体" title="添加附件"><span style="text-decoration: underline;">添加附件</span></a> </td> </tr> <tr> <td> <asp:Label ID="UploadFileLabel" runat="server" ForeColor="Red"></asp:Label> </td> </tr> </table> </td> </tr>
千万要注意表单里的东西怎么写 要不然获得的文件数量始终为0 <form id="form1" runat="server" enctype="multipart/form-data">
插入后台代码 HttpFileCollection fc = Request.Files; for (int i = 0; i < fc.Count; i++) { if (fc[i].FileName != "" && fc[i] != null && fc[i].ContentLength > 0) { string stri = "insert into Common_Files(UserID,OtherFileID,FileTrueName,FileName,FileOtherName,FileLength,CreateTime,CreateUser)Values('haihang','" + Guid.NewGuid().ToString() + "','" + fc[i].FileName.Substring(fc[i].FileName.LastIndexOf('\\') + 1) + "','" + Guid.NewGuid().ToString() + "','" + Guid.NewGuid().ToString() + "','" + fc[i].ContentLength.ToString() + "','" + DateTime.Now + "','haihang')"; int cfliesid = Convert.ToInt32(SQLHelper.ExecuteScalar(stri)); string stri1 = "insert into Common_Files_Relation(FileID,ID,FileType)Values('" + cfliesid + "','" + aid + "','Thesis')"; SQLHelper.ExecuteScalar(stri1); string path = Server.MapPath("~\\FilesUpload\\UploadFiles") + "\\"; if (!System.IO.Directory.Exists(path)) { System.IO.Directory.CreateDirectory(path); } fc[i].SaveAs(path + Guid.NewGuid().ToString()); } }