: The following process is required by the component designer'You can use the component designer to modify this process.'Do not use the code editor to modify it.Components = new system. componentmodel. ContainerEnd sub
# End Region
Sub application_start (byval sender as object, byval e as eventargs)'Triggered when the application is startedDim count as integer = 0Dim SRD as streamreaderDim file_path as string = server. mappath ("counter.txt ")SRD = file. ope
/// /// Read the SQL script file. Note: The file is saved in UTF-8 format./// Each Execution Unit ends with an exclusive go/// Perform operations such as table creation and table structure modification./// /// /// Public static list {If (! File. exists (varfilename )){Return NULL;}
Streamreader sr = file. opentext (varfilename );
List
String commandtext = "";
String varline = "";
While (Sr. Peek ()>-1){Varline = Sr. Readline ();If (varline. T
, eventargs e) {If (directory. exists (lbldisplaydir. text) = false) {return;} // output the directory structure to the text file using (streamwriter Sw = file. createtext ("a.txt") {directoryinfo di = new directoryinfo (lbldisplaydir. text); Sw. writeline (Di. name); foreach (var d in Di. getdirectories () {enumdirectory (D. fullname, "", SW);} SW. close () ;}// read the content from the text file if (file. exists ("a.txt") {using (VAR sr = file. opentext
Here: http://blogs.msdn.com/jfoscoding/archive/2006/01/14/512825.aspx
Here, only the knowledge points are sorted out:1. Obtain the selected content:(1) Use the RichTextBox. Document. Selection attribute(2) Access text in the "blocks" of the RichTextBox. Document. Blocks attribute
2. add content to RichTextBox in XAML:This is a RichTextBox. I can
3. Shorten the segment spacing, similar to You can use style to define the segment Spacing:This is my first paragraph... see how there is...A No space
attribute: returns the charttitle object, which indicates the title of the specified chart.
(3) charttype attribute: return or set the chart type.
(4) datatable attribute: return the datatable object, representing the chart data table.
(5) properties: return the wall object of a 3D chart.
4. Workbook object
This object represents the workbook.
(1) styles attribute: returns the styles set, indicating all styles of the specified workbook.
(2) Add method: used to create a workbook and set it as an
opened by the operating system. After opening, the file is truncated to 0 bytes.
Text Files
You can use the streamwriter and streamreader classes in the system. Io namespace to read and write file content. When creating these classes, you only need to pass the underlying stream as a constructor parameter:
FileStream fileStream = new FileStream(@"c:\myfile.txt", FileMode.Create);
StreamWriter w = new StreamWriter(fileStream);
You can also use static methods of the file class and fileinfo c
stream// Try//{T_sstreamreader = file. opentext (Spath + "//" + sname );//}// Catch (exception ex)//{// Return NULL;//}String t_sline; // the content of each lineArraylist t_javasraylist = new arraylist (); // containerWhile (t_sline = t_sstreamreader.readline ())! = NULL){T_javasraylist.add (t_sline); // Save the content of each row to the array linked list container.}T_sstreamreader.close (); // close the streamT_sstreamreader.dispose (); // destro
will be overwritten.
CreateNew
Specifies that the operating system should create a new file.
Open
Specifies that the operating system should open an existing file.
OpenOrCreate
Specifies that the operating system should open the file (if the file exists), otherwise, create a new file.
Truncate
Specifies that the operating system should open an existing file. Once the file is opened, it will be truncated to a size of 0 bytes.
o
Tags:. sh form. Text dir dia label Tin ToString Drop1. Code under the form private void Button1_Click (object sender, EventArgs e){OpenFileDialog of = new OpenFileDialog ();Of. Filter = "*.sql|*.*";Of. InitialDirectory = Application.startuppath; ;//application.startuppath;Of. Title = "Select the SQL File";if (of. ShowDialog () = = DialogResult.OK){Label3. Text = of. FileName; Button2. Enabled = true;}} private void Button2_Click (object sender, EventArgs e){var connstr = configurationmanager.app
A static page is generated.The instances written today mainly reflect the steps for replacement and storage.The template will not be done. directly use the whole body as a tag, replace the body of the dynamic page to be made into a static page with the data queried, and generate a static page. (Static homepage can do this ).
1. Use serever. Excute
StreamWriter sw = new StreamWriter (Server. MapPath ("html/Login.html"), false );
Server. Execute ("ShowColumn. asp tutorial x? Id = 1 page = 2 "
).Create creates a new file. If the file exists, it overwrites the file. If not, it creates a new file.Createnew creates a new file. If yes, an exception occurs.Open the existing file. If yes, an exception occurs if no file exists.If a file exists, the file is opened. If the file exists, the file is opened. If the file does not exist, the file is created.
The myfilestream2 object is instantiated using fileinfo. The fileinfo methods include open, openreade,
.· CreateText: Creates or opens a new file for writing text.· OpenText: open an existing text file for reading.But the above method mainly on the UTF-8 encoding text operations, which is not flexible enough. We recommend that you use the following code to operate the txt file.· Read the txt file. The sample code is as follows:StreamReader TxtReader = new StreamReader (@ "c: \ tempuploads \ newFile.txt", System. Text. Encoding. Default );String FileCon
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Asp.net c file writing function example code StreamWriter and StreamReader write characters to the stream and read characters from the stream. The following code example opens the log.txt file (create a file if the file does not exist) for input and attaches the information to the end of the file. Then write the file content to the standard output for display.
Asp tutorial. net c file writing function instance codeStreamwriter and streamreader write characters to the stream and read the characte
present, copy the file first, then delete it, then move the copied file, if it does not exist, create the file first, then open the file and write, and finally set the file property to read-only and hidden. Copy the code as follows: if (file.exists (@ "C:\tempuploads\newFile.txt"))//Determine if the file exists {CopyFile ();//Copy File DeleteFile ();//delete file MoveFile (); Move file}else{MakeFile ();///Generate file OpenFile ();//Open File Setfile ();//Set file properties} In addition, the f
the Page_Load method in the showfile. aspx. cs file ):
// Receives input parameters and determines the name of the file to be operated.
StrFile2Show = Request. QueryString ["File"];
// Instantiate a FileInfo object based on the object name
FileInfo fi =NewFileInfo (strFile2Show );
FileDetail. Text ="File name :";
FileDetail. Text + = strFile2Show +";
FileDetail. Text + ="File size";
// Obtain the file size, and then convert the unit to KB.
FileDetail. Text + = (fi. Length/1
C # When reading and writing a file, the file is being used by another process. Therefore, the process cannot access the file and encounters an I/O failure.
The file "D: \ log.txt" is being used by another process, so the process cannot access the file.
Log.txt is a log file and may be written to it by another program from time to time.
I/O streams need to be used to read log files and display them in log query.
1. filestream FS = file. openread (URL );Streamreader sr = new streamreader (system.
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