找不到部分路径 - ASP.net/C# 图片上传
Could not find a part of the path - ASP.net/C# Image Upload
我有一个 TinyMCE 插件，用于使用表单上传图像。这种形式在 FF 和 Chrome 中完美运行，但在 IE8+ 中会中断。我已确保对 NETWORK SERVICE 等有适当的权限
这是错误：
Could not find a part of the path 'C:\Users\XXXX\Desktop\image.jpg'.
ASPX：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="imgmanager.aspx.cs" Inherits="TinyMCE.NET.tiny_mce.plugins.aspnetbrowser.imgmanager"
EnableEventValidation="false" %>
<!DOCTYPE html>
<head runat="server">
<title></title>
<link href="css/aspnetbrowser.css" rel="stylesheet" type="text/css" />
<script src="../../tiny_mce.js" type="text/javascript"></script>
<script src="../../tiny_mce_popup.js" type="text/javascript"></script>
<script src="js/aspnetbrowser.js" type="text/javascript"></script>
</head>
<body>
<form id="form1" runat="server" action="#">
<asp:ScriptManager ID="ImageManagerScriptManager" runat="server">
</asp:ScriptManager>
<table style="width:100%;">
<tr>
<td colspan="3">
<asp:Literal ID="ErrorLiteral" runat="server" Text="" />
</td>
</tr>
<tr style="display:none;">
<td>
<asp:Literal ID="PathSelectLiteral" runat="server" Text="Select Location" />
</td>
<td>
<asp:UpdatePanel ID="PathDropDownUpdatePanel" runat="server">
<ContentTemplate>
<asp:DropDownList ID="PathDropDown" runat="server" AppendDataBoundItems="true" AutoPostBack="true"
OnSelectedIndexChanged="PathDropDown_SelectedIndexChanged">
<asp:ListItem Text="--Root--" Value="-1" />
</asp:DropDownList>
</ContentTemplate>
</asp:UpdatePanel>
</td>
<td>
<!--<asp:Button ID="DeleteFolderButton" runat="server" Text="Delete" OnClick="DeleteFolderButton_Click"
OnClientClick="javascript:return confirm('do you wish to delete this directory?');" />-->
</td>
</tr>
<!--tr>
<td>
<asp:Literal ID="FolderLiteral" runat="server" Text="Create Folder:" />
</td>
<td>
<asp:TextBox ID="FolderTextBox" runat="server" />
</td>
<td>
<asp:Button ID="CreateFolderButton" runat="server" Text="Create" OnClick="CreateFolderButton_Click" />
</td>
</tr-->
<tr>
<td>
<asp:Literal ID="SelectImageLiteral" runat="server" Text="Select Image:" />
</td>
<td>
<asp:FileUpload ID="ImageFileUpload" runat="server" />
<asp:RegularExpressionValidator ID="ImageFileUploadRegExValidator" runat="server"
ControlToValidate ="ImageFileUpload" ValidationExpression=".*((\.jpg)|(\.bmp)|(\.gif)|(\.png))"
ErrorMessage="only jpg, bmp, gif and png files are allowed" Text="*" />
</td>
<td>
<asp:Button ID="UploadButton" runat="server" Text="Upload" OnClick="UploadButton_Click" />
</td>
</tr>
<tr>
<td colspan="3">
<asp:Literal ID="AvailableImagesLiteral" runat="server" Text="Available Images:" />
</td>
</tr>
<tr>
<td colspan="3">
<asp:UpdatePanel ID="ImageGridViewUpdatePanel" runat="server">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="PathDropDown" />
</Triggers>
<ContentTemplate>
<asp:GridView ID="ImageGridView" runat="server" DataKeyNames="Name" AllowPaging="true"
AutoGenerateColumns="false" EnableViewState="false" OnRowDataBound="imageGridView_RowDataBound"
PageSize="5" OnSelectedIndexChanged="ImageGridView_SelectedIndexChanged" OnPageIndexChanging="ImageGridView_PageIndexChanging"
OnRowCommand="ImageGridView_RowCommand" OnRowDeleting="ImageGridView_RowDeleting">
<EmptyDataTemplate>
No Images Found!
</EmptyDataTemplate>
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:Button ID="DeleteButton" CommandName="Delete" Text="X" Width="21" Height="21"
ToolTip="delete current image." runat="server" OnClientClick="javascript:return confirm('do you wish to delete this image?');" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:Literal ID="radiobuttonMarkup" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Images">
<ItemTemplate>
<asp:Image ID="displayImage" runat="server" style="max-width:200px;" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
<SelectedRowStyle BackColor="#cacaca" />
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
</td>
</tr>
<tr>
<td>
<asp:UpdatePanel ID="SelectButtonUpdatePanel" runat="server">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="ImageGridView" />
</Triggers>
<ContentTemplate>
<asp:Button ID="SelectButton" runat="server" CausesValidation="false" Text="Select"
OnClientClick="AspNetBrowserDialog.insert(,);return false;" />
</ContentTemplate>
</asp:UpdatePanel>
</td>
<td>
<asp:Button ID="CancelButton" runat="server" CausesValidation="false" Text="Cancel"
OnClientClick="tinyMCEPopup.close();" />
</td>
</tr>
</table>
<asp:ValidationSummary ID="ValidationSummary1" runat="server" />
</form>
</body>
</html>
代码隐藏：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
using System.Web.UI.HtmlControls;
using System.Collections;
namespace TinyMCE.NET.tiny_mce.plugins.aspnetbrowser
{
public partial class imgmanager : System.Web.UI.Page
{
#region variables
public string host = string.Empty;
private const string checkedAttributeHTML = "checked=\"checked\"";
//HACK: the javascript this.style.visibility='hidden'; is a terrible hack to prevent the client doubleclick crash.
private const string radiobuttonHTML = "<input type=\"radio\" name=\"imagegroup\" id=\"selected{0}\" value=\"{0}\" onclick=\"{1};this.style.visibility='hidden';\" {2} />";
public const string thispage = "imgmanager.aspx";
public string defaultUploadPath = "~/nForum/uploads/";
public string aspnetimagebrowserImagePath = string.Empty;
public string physicalPath = string.Empty;
public string uploadPath = string.Empty;
private const string onDeleteError = "File could not be deleted!";
private const string onFileExistError = "File already exists!";
private const string onFolderExistError = "Folder already exists!";
private const string onNoFileSelectedError = "No image file was selected!";
private const string onFileSaveSuccess = "File was uploaded successfully!";
private string currentUrl = string.Empty;
public string aspnetVirtualFolderPath = string.Empty;
private HttpContext context = null;
private FileInfo[] imagefiles = new FileInfo[] { };
#endregion
#region properties
private int CurrentIndex
{
get { return (int?) ViewState["CurrentIndex"] ?? -1; }
set { ViewState["CurrentIndex"] = value; }
}
#endregion
protected void Page_Load(object sender, EventArgs e)
{
context = HttpContext.Current;
currentUrl = context.Request.Url.AbsoluteUri;
host = context.Request.ServerVariables["HTTP_HOST"];
if (context.Request.IsSecureConnection)
{
host = host.Replace("http:/", "https:/");
}
physicalPath = context.Server.MapPath("~");
uploadPath = context.Server.MapPath(Path.Combine(physicalPath, defaultUploadPath));
aspnetVirtualFolderPath = ToVirtualPath(context.Request.Path.Replace(thispage, string.Empty));
if (!Page.IsPostBack)
{
SelectButton.Enabled = false;
BindDirectoryDropDown();
}
BindData();
}
#region binding
private void BindDirectoryDropDown()
{
try
{
PathDropDown.Items.Clear();
PathDropDown.Items.Add(new ListItem("/images/", uploadPath));
RecursiveSearch(uploadPath, PathDropDown);
}
catch (UnauthorizedAccessException ex)
{
ErrorLiteral.Text = "UnauthorizedAccessException\n" + ex.Message;
}
}
private DirectoryInfo dirInfo;
private string parent = string.Empty;
private void RecursiveSearch(string path, DropDownList dropdown)
{
if (!Directory.Exists(path))
return;
dirInfo = new DirectoryInfo(path);
foreach (FileSystemInfo fileInfo in dirInfo.GetDirectories())
{
if (fileInfo.Attributes == FileAttributes.Directory)
{
parent += "/" + Directory.GetParent(fileInfo.FullName).Name;
ListItem li = new ListItem(parent + "/" + fileInfo.Name, fileInfo.FullName);
dropdown.Items.Add(li);
RecursiveSearch(fileInfo.FullName, dropdown);
}
}
parent = string.Empty;
}
#endregion
protected void PathDropDown_SelectedIndexChanged(object sender, EventArgs e)
{
SelectButton.Enabled = false;
BindData();
}
#region binding
private void BindData()
{
if (Directory.Exists(PathDropDown.SelectedValue))
{
DirectoryInfo info = new DirectoryInfo(PathDropDown.SelectedValue);
LoadFiles(info);
}
}
private void LoadFiles(DirectoryInfo info)
{
var files = info.GetFiles();
if (files != null)
{
imagefiles = files;
foreach (var item in files)
{
ImageGridView.DataSource = files;
ImageGridView.DataBind();
}
}
}
#endregion
#region IO utilities
private void DeleteFile(string file)
{
if (!string.IsNullOrEmpty(file) && File.Exists(file))
{
try
{
File.Delete(file);
}
catch (Exception ex)
{
ErrorLiteral.Text = ex.Message;
}
}
}
private void DeleteFolder(string folder)
{
if (!string.IsNullOrEmpty(folder) && Directory.Exists(folder))
{
try
{
Directory.Delete(folder);
}
catch (Exception ex)
{
ErrorLiteral.Text = ex.Message;
}
}
}
private void CreateFolder(string folder)
{
if (!string.IsNullOrEmpty(folder) && !Directory.Exists(folder))
{
try
{
Directory.CreateDirectory(folder);
BindDirectoryDropDown();
}
catch (Exception ex)
{
ErrorLiteral.Text = ex.Message;
}
}
}
private void CreateFile(string file)
{
if (!string.IsNullOrEmpty(file) && !File.Exists(file))
{
try
{
File.Delete(file);
}
catch (Exception ex)
{
ErrorLiteral.Text = ex.Message;
}
}
}
#endregion
#region create/delete directory
protected void CreateFolderButton_Click(object sender, EventArgs e)
{
string folder = FolderTextBox.Text.Trim();
if (!string.IsNullOrEmpty(folder))
{
string folderPath = Path.Combine(PathDropDown.SelectedValue, folder);
CreateFolder(folderPath);
FolderTextBox.Text = "";
}
}
protected void DeleteFolderButton_Click(object sender, EventArgs e)
{
string directory = PathDropDown.SelectedValue;
if (!string.IsNullOrEmpty(directory) && Directory.Exists(directory))
{
try
{
Directory.Delete(directory);
this.BindDirectoryDropDown();
this.BindData();
}
catch (IOException ex)
{
ErrorLiteral.Text = ex.Message;
}
}
}
#endregion
#region upload file
protected void UploadButton_Click(object sender, EventArgs e)
{
if (ImageFileUpload.HasFile)
{
try
{
if (Directory.Exists(PathDropDown.SelectedValue))
{
HttpPostedFile postedFile = ImageFileUpload.PostedFile;
postedFile.SaveAs(Path.Combine(PathDropDown.SelectedValue, postedFile.FileName));
ErrorLiteral.Text = onFileSaveSuccess;
context.Response.Redirect(currentUrl);
}
}
catch (Exception ex)
{
ErrorLiteral.Text = ex.Message;
}
}
else
{
ErrorLiteral.Text = onNoFileSelectedError;
}
}
#endregion
#region gridview methods
protected void ImageGridView_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
}
protected void ImageGridView_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName.Equals("Delete"))
{
var file = imagefiles[Convert.ToInt32(e.CommandArgument)];
if (file != null)
{
DeleteFile(file.FullName);
BindData();
}
}
}
protected void ImageGridView_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
ImageGridView.PageIndex = e.NewPageIndex;
BindData();
}
protected void imageGridView_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
GridViewRow row = (GridViewRow)e.Row;
FileInfo fi = (FileInfo)row.DataItem;
Image imageList = e.Row.FindControl("displayImage") as Image;
if (imageList != null)
{
imageList.ImageUrl = ToVirtualPath(fi, false);
}
Button deleteButton = e.Row.FindControl("DeleteButton") as Button;
if (deleteButton != null)
{
deleteButton.CommandArgument = Convert.ToString(row.RowIndex);
}
}
}
protected void ImageGridView_SelectedIndexChanged(object sender, EventArgs e)
{
if (ImageGridView.SelectedIndex > -1)
{
GridViewRow row = ImageGridView.SelectedRow;
if (row != null)
{
var file = imagefiles[ImageGridView.SelectedIndex];
string script = "AspNetBrowserDialog.insert('{0}','{1}');return false;";
script = string.Format(script, ToVirtualPath(file, true), file.Name);
SelectButton.Enabled = true;
SelectButton.OnClientClick = script;
CurrentIndex = row.RowIndex;
}
}
else
{
SelectButton.Enabled = false;
}
}
#endregion
#region path utilities
private string ToVirtualPath(FileInfo fi, bool forTinyMCE = false)
{
string root = context.Server.MapPath("~/");
string path = (fi.Directory.FullName + "\" + fi.Name);
path = path.Replace(root, string.Empty);
path = path.Replace("\", "/");
if (forTinyMCE)
return ("/" + path);
else
return ("~/" + path);
}
private string ToVirtualPath(string filename)
{
string root = context.Server.MapPath("~/");
string path = filename;
path = path.Replace(root, string.Empty);
path = path.Replace("\", "/");
return ("~/" + path);
}
#endregion
#region render
protected override void Render(HtmlTextWriter writer)
{
foreach(GridViewRow row in ImageGridView.Rows)
{
if (row.RowType == DataControlRowType.DataRow)
{
Literal radiobuttonMarkup = row.FindControl("radiobuttonMarkup") as Literal;
if (radiobuttonMarkup != null)
{
string script = ClientScript.GetPostBackEventReference(ImageGridView, "Select$" + row.RowIndex, true);
string attr = string.Empty;
if (CurrentIndex == row.RowIndex)
attr = checkedAttributeHTML;
radiobuttonMarkup.Text = string.Format(radiobuttonHTML, row.RowIndex, script, attr);
}
}
}
base.Render(writer);
}
#endregion
}
}
通过更改修复：
HttpPostedFile postedFile = ImageFileUpload.PostedFile;
postedFile.SaveAs(Path.Combine(PathDropDown.SelectedValue, postedFile.FileName));
至：
string filename = Path.GetFileName(ImageFileUpload.FileName);
ImageFileUpload.SaveAs(Server.MapPath("~/nForum/uploads/") + filename);
我有一个 TinyMCE 插件，用于使用表单上传图像。这种形式在 FF 和 Chrome 中完美运行，但在 IE8+ 中会中断。我已确保对 NETWORK SERVICE 等有适当的权限
这是错误：
Could not find a part of the path 'C:\Users\XXXX\Desktop\image.jpg'.
ASPX：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="imgmanager.aspx.cs" Inherits="TinyMCE.NET.tiny_mce.plugins.aspnetbrowser.imgmanager"
EnableEventValidation="false" %>
<!DOCTYPE html>
<head runat="server">
<title></title>
<link href="css/aspnetbrowser.css" rel="stylesheet" type="text/css" />
<script src="../../tiny_mce.js" type="text/javascript"></script>
<script src="../../tiny_mce_popup.js" type="text/javascript"></script>
<script src="js/aspnetbrowser.js" type="text/javascript"></script>
</head>
<body>
<form id="form1" runat="server" action="#">
<asp:ScriptManager ID="ImageManagerScriptManager" runat="server">
</asp:ScriptManager>
<table style="width:100%;">
<tr>
<td colspan="3">
<asp:Literal ID="ErrorLiteral" runat="server" Text="" />
</td>
</tr>
<tr style="display:none;">
<td>
<asp:Literal ID="PathSelectLiteral" runat="server" Text="Select Location" />
</td>
<td>
<asp:UpdatePanel ID="PathDropDownUpdatePanel" runat="server">
<ContentTemplate>
<asp:DropDownList ID="PathDropDown" runat="server" AppendDataBoundItems="true" AutoPostBack="true"
OnSelectedIndexChanged="PathDropDown_SelectedIndexChanged">
<asp:ListItem Text="--Root--" Value="-1" />
</asp:DropDownList>
</ContentTemplate>
</asp:UpdatePanel>
</td>
<td>
<!--<asp:Button ID="DeleteFolderButton" runat="server" Text="Delete" OnClick="DeleteFolderButton_Click"
OnClientClick="javascript:return confirm('do you wish to delete this directory?');" />-->
</td>
</tr>
<!--tr>
<td>
<asp:Literal ID="FolderLiteral" runat="server" Text="Create Folder:" />
</td>
<td>
<asp:TextBox ID="FolderTextBox" runat="server" />
</td>
<td>
<asp:Button ID="CreateFolderButton" runat="server" Text="Create" OnClick="CreateFolderButton_Click" />
</td>
</tr-->
<tr>
<td>
<asp:Literal ID="SelectImageLiteral" runat="server" Text="Select Image:" />
</td>
<td>
<asp:FileUpload ID="ImageFileUpload" runat="server" />
<asp:RegularExpressionValidator ID="ImageFileUploadRegExValidator" runat="server"
ControlToValidate ="ImageFileUpload" ValidationExpression=".*((\.jpg)|(\.bmp)|(\.gif)|(\.png))"
ErrorMessage="only jpg, bmp, gif and png files are allowed" Text="*" />
</td>
<td>
<asp:Button ID="UploadButton" runat="server" Text="Upload" OnClick="UploadButton_Click" />
</td>
</tr>
<tr>
<td colspan="3">
<asp:Literal ID="AvailableImagesLiteral" runat="server" Text="Available Images:" />
</td>
</tr>
<tr>
<td colspan="3">
<asp:UpdatePanel ID="ImageGridViewUpdatePanel" runat="server">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="PathDropDown" />
</Triggers>
<ContentTemplate>
<asp:GridView ID="ImageGridView" runat="server" DataKeyNames="Name" AllowPaging="true"
AutoGenerateColumns="false" EnableViewState="false" OnRowDataBound="imageGridView_RowDataBound"
PageSize="5" OnSelectedIndexChanged="ImageGridView_SelectedIndexChanged" OnPageIndexChanging="ImageGridView_PageIndexChanging"
OnRowCommand="ImageGridView_RowCommand" OnRowDeleting="ImageGridView_RowDeleting">
<EmptyDataTemplate>
No Images Found!
</EmptyDataTemplate>
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:Button ID="DeleteButton" CommandName="Delete" Text="X" Width="21" Height="21"
ToolTip="delete current image." runat="server" OnClientClick="javascript:return confirm('do you wish to delete this image?');" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:Literal ID="radiobuttonMarkup" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Images">
<ItemTemplate>
<asp:Image ID="displayImage" runat="server" style="max-width:200px;" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
<SelectedRowStyle BackColor="#cacaca" />
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
</td>
</tr>
<tr>
<td>
<asp:UpdatePanel ID="SelectButtonUpdatePanel" runat="server">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="ImageGridView" />
</Triggers>
<ContentTemplate>
<asp:Button ID="SelectButton" runat="server" CausesValidation="false" Text="Select"
OnClientClick="AspNetBrowserDialog.insert(,);return false;" />
</ContentTemplate>
</asp:UpdatePanel>
</td>
<td>
<asp:Button ID="CancelButton" runat="server" CausesValidation="false" Text="Cancel"
OnClientClick="tinyMCEPopup.close();" />
</td>
</tr>
</table>
<asp:ValidationSummary ID="ValidationSummary1" runat="server" />
</form>
</body>
</html>
代码隐藏：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
using System.Web.UI.HtmlControls;
using System.Collections;
namespace TinyMCE.NET.tiny_mce.plugins.aspnetbrowser
{
public partial class imgmanager : System.Web.UI.Page
{
#region variables
public string host = string.Empty;
private const string checkedAttributeHTML = "checked=\"checked\"";
//HACK: the javascript this.style.visibility='hidden'; is a terrible hack to prevent the client doubleclick crash.
private const string radiobuttonHTML = "<input type=\"radio\" name=\"imagegroup\" id=\"selected{0}\" value=\"{0}\" onclick=\"{1};this.style.visibility='hidden';\" {2} />";
public const string thispage = "imgmanager.aspx";
public string defaultUploadPath = "~/nForum/uploads/";
public string aspnetimagebrowserImagePath = string.Empty;
public string physicalPath = string.Empty;
public string uploadPath = string.Empty;
private const string onDeleteError = "File could not be deleted!";
private const string onFileExistError = "File already exists!";
private const string onFolderExistError = "Folder already exists!";
private const string onNoFileSelectedError = "No image file was selected!";
private const string onFileSaveSuccess = "File was uploaded successfully!";
private string currentUrl = string.Empty;
public string aspnetVirtualFolderPath = string.Empty;
private HttpContext context = null;
private FileInfo[] imagefiles = new FileInfo[] { };
#endregion
#region properties
private int CurrentIndex
{
get { return (int?) ViewState["CurrentIndex"] ?? -1; }
set { ViewState["CurrentIndex"] = value; }
}
#endregion
protected void Page_Load(object sender, EventArgs e)
{
context = HttpContext.Current;
currentUrl = context.Request.Url.AbsoluteUri;
host = context.Request.ServerVariables["HTTP_HOST"];
if (context.Request.IsSecureConnection)
{
host = host.Replace("http:/", "https:/");
}
physicalPath = context.Server.MapPath("~");
uploadPath = context.Server.MapPath(Path.Combine(physicalPath, defaultUploadPath));
aspnetVirtualFolderPath = ToVirtualPath(context.Request.Path.Replace(thispage, string.Empty));
if (!Page.IsPostBack)
{
SelectButton.Enabled = false;
BindDirectoryDropDown();
}
BindData();
}
#region binding
private void BindDirectoryDropDown()
{
try
{
PathDropDown.Items.Clear();
PathDropDown.Items.Add(new ListItem("/images/", uploadPath));
RecursiveSearch(uploadPath, PathDropDown);
}
catch (UnauthorizedAccessException ex)
{
ErrorLiteral.Text = "UnauthorizedAccessException\n" + ex.Message;
}
}
private DirectoryInfo dirInfo;
private string parent = string.Empty;
private void RecursiveSearch(string path, DropDownList dropdown)
{
if (!Directory.Exists(path))
return;
dirInfo = new DirectoryInfo(path);
foreach (FileSystemInfo fileInfo in dirInfo.GetDirectories())
{
if (fileInfo.Attributes == FileAttributes.Directory)
{
parent += "/" + Directory.GetParent(fileInfo.FullName).Name;
ListItem li = new ListItem(parent + "/" + fileInfo.Name, fileInfo.FullName);
dropdown.Items.Add(li);
RecursiveSearch(fileInfo.FullName, dropdown);
}
}
parent = string.Empty;
}
#endregion
protected void PathDropDown_SelectedIndexChanged(object sender, EventArgs e)
{
SelectButton.Enabled = false;
BindData();
}
#region binding
private void BindData()
{
if (Directory.Exists(PathDropDown.SelectedValue))
{
DirectoryInfo info = new DirectoryInfo(PathDropDown.SelectedValue);
LoadFiles(info);
}
}
private void LoadFiles(DirectoryInfo info)
{
var files = info.GetFiles();
if (files != null)
{
imagefiles = files;
foreach (var item in files)
{
ImageGridView.DataSource = files;
ImageGridView.DataBind();
}
}
}
#endregion
#region IO utilities
private void DeleteFile(string file)
{
if (!string.IsNullOrEmpty(file) && File.Exists(file))
{
try
{
File.Delete(file);
}
catch (Exception ex)
{
ErrorLiteral.Text = ex.Message;
}
}
}
private void DeleteFolder(string folder)
{
if (!string.IsNullOrEmpty(folder) && Directory.Exists(folder))
{
try
{
Directory.Delete(folder);
}
catch (Exception ex)
{
ErrorLiteral.Text = ex.Message;
}
}
}
private void CreateFolder(string folder)
{
if (!string.IsNullOrEmpty(folder) && !Directory.Exists(folder))
{
try
{
Directory.CreateDirectory(folder);
BindDirectoryDropDown();
}
catch (Exception ex)
{
ErrorLiteral.Text = ex.Message;
}
}
}
private void CreateFile(string file)
{
if (!string.IsNullOrEmpty(file) && !File.Exists(file))
{
try
{
File.Delete(file);
}
catch (Exception ex)
{
ErrorLiteral.Text = ex.Message;
}
}
}
#endregion
#region create/delete directory
protected void CreateFolderButton_Click(object sender, EventArgs e)
{
string folder = FolderTextBox.Text.Trim();
if (!string.IsNullOrEmpty(folder))
{
string folderPath = Path.Combine(PathDropDown.SelectedValue, folder);
CreateFolder(folderPath);
FolderTextBox.Text = "";
}
}
protected void DeleteFolderButton_Click(object sender, EventArgs e)
{
string directory = PathDropDown.SelectedValue;
if (!string.IsNullOrEmpty(directory) && Directory.Exists(directory))
{
try
{
Directory.Delete(directory);
this.BindDirectoryDropDown();
this.BindData();
}
catch (IOException ex)
{
ErrorLiteral.Text = ex.Message;
}
}
}
#endregion
#region upload file
protected void UploadButton_Click(object sender, EventArgs e)
{
if (ImageFileUpload.HasFile)
{
try
{
if (Directory.Exists(PathDropDown.SelectedValue))
{
HttpPostedFile postedFile = ImageFileUpload.PostedFile;
postedFile.SaveAs(Path.Combine(PathDropDown.SelectedValue, postedFile.FileName));
ErrorLiteral.Text = onFileSaveSuccess;
context.Response.Redirect(currentUrl);
}
}
catch (Exception ex)
{
ErrorLiteral.Text = ex.Message;
}
}
else
{
ErrorLiteral.Text = onNoFileSelectedError;
}
}
#endregion
#region gridview methods
protected void ImageGridView_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
}
protected void ImageGridView_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName.Equals("Delete"))
{
var file = imagefiles[Convert.ToInt32(e.CommandArgument)];
if (file != null)
{
DeleteFile(file.FullName);
BindData();
}
}
}
protected void ImageGridView_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
ImageGridView.PageIndex = e.NewPageIndex;
BindData();
}
protected void imageGridView_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
GridViewRow row = (GridViewRow)e.Row;
FileInfo fi = (FileInfo)row.DataItem;
Image imageList = e.Row.FindControl("displayImage") as Image;
if (imageList != null)
{
imageList.ImageUrl = ToVirtualPath(fi, false);
}
Button deleteButton = e.Row.FindControl("DeleteButton") as Button;
if (deleteButton != null)
{
deleteButton.CommandArgument = Convert.ToString(row.RowIndex);
}
}
}
protected void ImageGridView_SelectedIndexChanged(object sender, EventArgs e)
{
if (ImageGridView.SelectedIndex > -1)
{
GridViewRow row = ImageGridView.SelectedRow;
if (row != null)
{
var file = imagefiles[ImageGridView.SelectedIndex];
string script = "AspNetBrowserDialog.insert('{0}','{1}');return false;";
script = string.Format(script, ToVirtualPath(file, true), file.Name);
SelectButton.Enabled = true;
SelectButton.OnClientClick = script;
CurrentIndex = row.RowIndex;
}
}
else
{
SelectButton.Enabled = false;
}
}
#endregion
#region path utilities
private string ToVirtualPath(FileInfo fi, bool forTinyMCE = false)
{
string root = context.Server.MapPath("~/");
string path = (fi.Directory.FullName + "\" + fi.Name);
path = path.Replace(root, string.Empty);
path = path.Replace("\", "/");
if (forTinyMCE)
return ("/" + path);
else
return ("~/" + path);
}
private string ToVirtualPath(string filename)
{
string root = context.Server.MapPath("~/");
string path = filename;
path = path.Replace(root, string.Empty);
path = path.Replace("\", "/");
return ("~/" + path);
}
#endregion
#region render
protected override void Render(HtmlTextWriter writer)
{
foreach(GridViewRow row in ImageGridView.Rows)
{
if (row.RowType == DataControlRowType.DataRow)
{
Literal radiobuttonMarkup = row.FindControl("radiobuttonMarkup") as Literal;
if (radiobuttonMarkup != null)
{
string script = ClientScript.GetPostBackEventReference(ImageGridView, "Select$" + row.RowIndex, true);
string attr = string.Empty;
if (CurrentIndex == row.RowIndex)
attr = checkedAttributeHTML;
radiobuttonMarkup.Text = string.Format(radiobuttonHTML, row.RowIndex, script, attr);
}
}
}
base.Render(writer);
}
#endregion
}
}
通过更改修复：
HttpPostedFile postedFile = ImageFileUpload.PostedFile;
postedFile.SaveAs(Path.Combine(PathDropDown.SelectedValue, postedFile.FileName));
至：
string filename = Path.GetFileName(ImageFileUpload.FileName);
ImageFileUpload.SaveAs(Server.MapPath("~/nForum/uploads/") + filename);