What should I do if a StreamReader in C has ReadToEnd and wants to read it again?

string totallines = ;

Reset the file pointer to the file header.

string firstline = ;

Don't keep opening files, it's not cost-effective.

The streamreader is equal to the time it passes itself, and these two variables indicate the same thing, of course, together with readtoend and readline

Let's close and re-new.

openfiledialog open = new openfiledialog();

if ( ==

streamreader sr = new streamreader(, "gb2312"));

;sr = new streamreader(, "gb2312"));

Just turn it back on once.

Then you'll have to get it again.

streamreader sr = new streamreader("", ;

Remember to encode, otherwise you will make a mistake when reading the Chinese characters.

string text = ;

string str= "");

If you must use streamreader, you can write using (streamreader sr = new streamreader(""))}

3 all, ; Invoke once before a new read to move the position of the read to the beginning of the stream. Premise The canseek of the base stream is true

No matter which drive letter you put in, you can get the directory where the program runs, that is, you can get the drive letter where the program runs.

You then splice the full path of the data.

Two scenarios: Scenario 1, do not build an entity class, use dynamic:

var jsonobject = ;

string sign = jsonobject["sign"];

The second solution is to create a new entity class of the corresponding structure, and find a reverse order judgment to deserialize the mountain sail method to make a hailstorm.

Write reads out the text file.

public void page_load(object src,eventargs e)

streamwriter rw = ".")+"\\");

test");

test1");

test2");;

Open the text file.

streamreader sr = ".")+"\\");

stringbuilder output = new stringbuilder();

string rl;

while((rl=

c does not have the readtoend() function to read the file and the data stream information to set a timeout.

The normal implementation would be:

The ability to read streaming data is a separate thread. The main thread monitors and determines whether it has timed out.

If the subthread (read thread) exceeds the set or expected value, terminate the subthread.