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All Concepts in the ASP.NET Operating file are in System.io Namespace, which contains the classes necessary to read and write operations files.
This article will detail the file operations in ASP.NET, such as file read, write, delete, etc.
Create a file: and write some content.
As started to mention, we need to add file operations in front of our ASP.NET's page. "System.io"
first step:
Add Namespace as shown below
<% @ Import namespace = "system.io"%>
Next step production text file
Writefile.aspx
<% @ Import namespace = "system.io"%>
<%
Response.write ("Writing The Content Into Text File in Asp.Net
)
"Statement Streamwriter object
DIM STRWRITEROBJ AS streamwriter
"Create a text file and assign it to the StreamWriter object that is declared above.
Strwriterobj = file.createtext ("c: /ASPNET.TXT")
"Writing some Dongdong in the text file created in just now
Strwriterobj.writeline ("Welcome to User Chenyang" S asp.net program ")
Strwriterobj.close
Response.write ("Create text files and fill content")
%>
Now we have completed the first part
Next, let's complete the second part
Read data from the file
1. Read files to use StreamReader class
2. When using readline, use an empty string to expand ("") at the end of the file.
Let us read data from our text files we have just made
Now let "s Go
Readfile.aspx
<% @ Import namespace = "system.io"%>
<%
Response.write ("Reading The Content from the Text File ASPNET.TXT
")
"Statement StreamReader object
Dim StreamReaderobj As StreamReader
"Declare the data read in the FileCont variable storage file
Dim FileCont As String
"Open text files and assume StreamReaderobj objects
StreamReaderobj = file.opentext ("c: /Aspnet.txt")
"Read file data until null value
DO
FileCont = streamreaderobj.readline ()
Response.write (FileCont & "
)
Loop unsil filecont = "" "
"Operation completes the StreamReaderobj object
StreamReaderobj.Close
Response.write ("
reading the ASPNET.TXT file end")
%>
Three delete files
The operation of the deleted file can be said to be the most direct in ASP.NET. Let's take a look at the deletion of the file.
FILEDELETE.ASPX
<% @ Import namespace = "system.io"%>
<%
File.delete ("c: /Aspnet.txt")
Response.write ("file delete success !!!")
%>
