This article uses an example to describe how to implement file read/write operations in asp.net. Previously, when a file is read/write, append or overwrite, you only need to change the value of the first parameter to switch.
Writing can be divided into continued writing and overwriting. You only need to change the value of the first parameter to switch.
The Code is as follows:
| The Code is as follows: |
Copy code |
/// <Summary>
/// Write the content to a text file
/// </Summary>
/// <Param name = "count"> status to determine whether to continue or overwrite </param>
/// <Param name = "fileName"> file name </param>
/// <Param name = "content"> content </param>
/// <Returns> the returned error message or 1 indicates that the write is successful. </returns>
Public static string writeFile (bool bl, string fileName, string content)
{
Try
{
String pathName = System. Web. HttpContext. Current. Server. MapPath (fileName );
// This does not exist and will be automatically created
Using (StreamWriter sw = new StreamWriter (pathName, bl, Encoding. Default ))
{
Sw. Write (content );
Sw. Flush ();
Sw. Close ();
}
}
Catch (Exception ex)
{
Return ex. Message;
}
Return "1 ";
} /// <Summary>
/// Read the text file content
/// </Summary>
/// <Param name = "fileName"> file name </param>
/// <Returns> returned content </returns>
Public static string readFile (string fileName)
{
String result = "";
Try
{
String pathName = System. Web. HttpContext. Current. Server. MapPath (fileName );
Using (StreamReader sr = new StreamReader (pathName, Encoding. Default ))
{
Result = sr. ReadToEnd ();
Sr. Close ();
}
}
Catch (Exception ex)
{
Return "0"; // ex. Message;
}
Return result;
} |
