... PictureBox_DragDrop(ByVal sender As System.Object, ByVal e As _
System.Windows.Forms.DragEventArgs) Handles hinhbentrai.DragDrop, _
hinhbenphai.DragDrop
'Xử lý sự kiện DragDrop, và điều ... TreeView_DragDrop thủ tục này có tác dụng khởi tạo việc kéo thả.
Private Sub TreeView_DragDrop(ByVal sender As System.Object, _
ByVal e As System.Windows.Forms.DragEventArgs) Handles _
tvwLeft.DragDrop, ... (e.Data.GetDataPresent(DataFormats.Bitmap)) Then
e.Effect = DragDropEffects.Move
Else
e.Effect = DragDropEffects.None
End If
End Sub
Tạo thủ tục PictureBox_Dragdrop thủ tục này có tác dụng xử lý sự kiện...
... IV: Server-side Scripting with PHP 185
CHAPTER 14: Getting to Know PHP 187
PHP Basics 187
Your First PHP Script
190
Summary
194
CHAPTER 15:
Variables 195
Understanding Variables 195
Data Types
... 202
Formatting Strings
203
viii
Sams Teach Yourself Ajax, JavaScript, andPHP All in One
30
CHAPTER 2: Writing and Styling Pages in HTML and CSS
<small> </small> Small text
<table> ... you’ll need access to a web server that supports
PHP, and a means to upload files into your web space (probably FTP). Most web
hosts include PHP in their hosting packages, or can do so on request...
... valid file
If (Not File1 .PostedFile Is Nothing) _
And (File1 .PostedFile.ContentLength > 0) Then
'determine file name
Dim sFileName As String = _
System.IO.Path.GetFileName (File1 .PostedFile.FileName) ... System.IO.Path.GetFileName (File1 .PostedFile.FileName)
Try
If File1 .PostedFile.ContentLength <= lMaxFileSize Then
'save file on disk
File1 .PostedFile.SaveAs(sFileDir + sFileName)
lblMessage.Visible ... liệu hoặc file cấu hình XML. sFileDir chỉ định rõ vị trí trên máy chủ để fileupload có thể
được lưu vào. lMaxFileSize chỉ định dung lượng file tối đa cho việc upload.
Thủ tục DeleteFile được...
... 'determine file name
Dim sFileName As String = _
System.IO.Path.GetFileName (File1 .PostedFile.FileName)
Try
If File1 .PostedFile.ContentLength <= lMaxFileSize Then
'save file on disk
File1 .PostedFile.SaveAs(sFileDir ... System.EventArgs) Handles cmdUpload.Click
'check that the file has been selected and it's a valid file
If (Not File1 .PostedFile Is Nothing) _
And (File1 .PostedFile.ContentLength ... File1 .PostedFile.SaveAs(sFileDir + sFileName)
lblMessage.Visible = True
lblMessage.Text = " ;File: " + sFileDir + sFileName + _
" Uploaded Successfully"
Else 'reject file
...
... tiếp tục với thao tác lấy dữ liệu từ file
nữa.
2 - Đọc và ghi file trong PHP.
a) Đọc 1 file trong PHPPHP cho ta nhiều sự lựa chọn trong việc đọc 1 file. Có nhiều hình thức hỗ
trợ nhưng ... cuối file chưa ?.
Ở đây chúng ta dùng cú pháp sau: feof (file vừa mở)
Ví dụ:
b) Ghi 1 file trong PHP
Tìm hiểu quy trình làm việc trên file trong PHP
Một trong những tác vụ đặc biệt của PHP ... nhất vẫn là đọc file theo từng dòng
và đọc file theo từng ký tự.
- Đọc file theo từng dòng:
Cú pháp : fgets (file vừa mở).
Ví dụ:
- Đọc file theo từng ký tự:
Cú pháp : fgetc (file vừa mở)....
... attaching event handlers inline and using object properties.
Inline handlers are difficult for keeping things separated, and attaching via object properties
means you can attach only one handler at ... CSS, AND JAVASCRIPT 43
7648ch02final.qxd 9/6/07 7:55 PM Page 43
Accelerated DOM Scripting with Ajax, APIs, and Libraries
Copyright â 2007 by Jonathan Snook, Aaron Gustafson, Stuart Langridge, and ... beginning and end of the string, along with replacing any nonspaces with
spaces and then compressing multiple spaces into a single space.
Handling Attributes
You have multiple ways of handling...
... methods; Ajaxand Flash
hacking methods; SOAP, REST, and XML-RPC hacking; RSS/Atom feed attacks;
fuzzing and code review methodologies and tools; and tool building with Python,
Ruby, and .NET. ... Applet, and ActiveX.
Entry Point Disclosure
RIA- and Ajax- driven applications use a lot of client-side code to access backend
applications, and there are several resources buried in Ajax functions. ... fetch XML nodes and make changes
in the HTML DOM nodes.
22
Web 2.0 Security: Defending Ajax, RIA, and SOA
INFORMATION SOURCES AND PROCESSING
Web 2.0 applications use different trusted and untrusted...
... to ask .php
Send the request
and return
Server-Side Application
Handle the request
Output the response
AjaxRequestManager
createAjaxRequest
Appends an
AjaxRequest
instance to the
queue and returns ... CustomEvent to pass AjaxRequests when loaded
function AjaxEvent(request) {
this.request = request;
}
AjaxEvent.prototype = new CustomEvent;
AjaxEvent.prototype.type = &apos ;ajax& apos;;
AjaxEvent.prototype.request ... usage, the Ajax developer com-
munity has a need for books covering architecture, tuning, alternative uses of Ajax,
and more. Many books and tutorials have provided good introductions, and they...
... is Ajax specific is the map’s capability to dynamically reconstruct
itself as you drag the mouse over a part of the map. As you click and hold the mouse button and
drag across the map, Ajax ... is why is Ajax popular now? Mainly because Ajax involves the manipulation
of data streams. We have an Internet economy andAjax makes that economy work better.
Let’s focus on Google and Map.search.ch. ... transfer of data, and in particular
is used extensively with Ajax applications. The overall idea is to generate content and to have
that content filtered and processed. The filtered and processed...
...
Chapter 6: AJAX Suggest and Autocomplete 165
Introducing AJAX Suggest and Autocomplete 165
Google Suggest 166
Implementing AJAX Suggest and Autocomplete 167
Time for Action AJAX Suggest and Autocomplete ... Reader 224
Implementing the AJAX RSS Reader 225
Time for Action—Building the RSS Reader Application 226
Summary 236
Chapter 10: AJAXDragandDrop 237
Using DragandDrop on the Web 237
Shopping ... output of your grid.
Chapter 9: AJAX RSS Reader uses the SimpleXML PHP library, XML, and XSLT to build a
simple RSS aggregator.
Chapter 10: AJAXDragandDrop is a demonstration of using the...