Vb.net file write append

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Append text. Here we use StreamWriter to append lines of text to a file. This is more efficient than reading in the entire file—only the last part of the file needs to be accessed. This specifies the append overload. Then The file is opened again, and a second line is appended to it. The text file contents are shown in the final comment. NET program that uses StreamWriter to append. Here we use a For-loop with StreamWriter. When you have to loop and add text to a file, you should reuse a single StreamWriter—this improves performance.

For Each, For. Write The file is opened, and one Windows file handle is created. Then, that same system resource is used to write ten numbers to the file. Format The Write call in the For-loop specifies a format string. The format string prints the Integer with one decimal place.