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The Excel assistant code in asp.net

. Open){This. Connection. Open ();}String literal text = "Drop Table [{0}]";Using (OleDbCommand cmd = new OleDbCommand (string. Format (plain text, tableName), this. Connection )){Cmd. ExecuteNonQuery ();}This. Connection. Close ();}/// /// Write table/// /// /// Public void WriteTable (string tableName, Dictionary {Using (OleDbCommand cmd = new OleDbCommand (this. GenerateCreateTable (tableName, tableDefinition), this. Connection )){If (this. Connection. State! = ConnectionState. Open) this. Co

Java's StringBuffer class

. Common methods of StringBufferThe methods in the StringBuffer class mainly focus on changes to strings, such as Append, insert, and delete, which are the main differences between the StringBuffer and the string classes.A, Append methodPublic StringBuffer Append (Boolean B)The function of this method is to append the content to the end of the current StringBuffer object, similar to a string connection. After the method is called, the contents of the StringBuffer object also change, for example:

Page number calculation method

displayed page numberInt x = pageindex/10;If (pageindex % 10 = 0) -- X;Int startpage = (x * 10) + 1;Int endpage = math. Min (pagecount, startpage + 9 ); // Generate the form feed codeSystem. Text. stringbuilder sb = new stringbuilder ();String url = " If (startpage> 1){SB. append (string. Format (URL, "Homepage", S, 1 ));SB. append (" nbsp ");

Complete implementation solution + reference program for the automatic upgrade and update modules of Android applications

update them. If (getserververcode ()){ Int vercode = config. getvercode (this); // use the method written in the first section. If (newvercode> vercode ){ Donewversionupdate (); // update the new version } Else { Notnewversionshow (); // The latest version is displayed. } } Copy code Detailed method: Private void notnewversionshow (){ Int vercode = config. getvercode (this ); String vername = config. getvername (this ); Stringbuffer sb

EXT File System

follows: // Allocate an inodeStruct inode * ext2_new_inode (struct inode * Dir, int Mode){Struct super_block * Sb;Struct buffer_head * bitmap_bh = NULL;Struct buffer_head * BH2;Int group, I;Ino_t ino = 0;Struct inode * inode;Struct ext2_group_desc * GDP;Struct ext2_super_block * es;Struct ext2_inode_info * EI;Struct ext2_sb_info * SBI;Int err;SB = Dir-> I _sb;// Allocate inode in VFSInode = new_inode (

Have a chat goroutine stack

{_ = make ([] byte , 200 ) return x + y} Disable optimizations and introverted compilation go tool compile -N -l -S stack.go > stack.s , some of the assembly code is as follows: "". Main t=1 size=112 args=0x0 locals=0x30//stack size is 48, no parameter 0x0000 00000 (stack.go:3) TEXT "". Main (SB), $48-0//via thread local St Orage Gets the data structure of the current

Try to write your own code generator

]. ToString ();70 clb_TableName.Items.Add (TableName );71}72}73 /// 74 // code generation button www.2cto.com75 /// 76 private void btn_Bulider_Click_1 (object sender, EventArgs e)77 {78 // selected table79 foreach (string TableName in clb_TableName.CheckedItems)80 {81 CreateModel (TableName );82 CreateDAL (TableName );83}8485}8687 private void CreateDAL (string TableName)88 {89 // assume that the primary key name is id90 DataTable dt_column = ExecuteDataTable ("select * from INFORMATION_SCHEMA.

Android automatically updates the apk version

verName = this. getVerName (this );StringBuffer sb = new StringBuffer ();Sb. append ("current version :");Sb. append (verName );Sb. append ("Code :");Sb. append (verCode );Sb. append ("\ n is the latest version, no need to update

Baidu map api obtains latitude and longitude and city names, and map api obtains latitude and longitude

(mLocationClient! = Null mLocationClient. isStarted () mLocationClient. requestLocation (); else Log. d ("Location", "locClient is null or not started");} public class MyLocationListener implements BDLocationListener {@ Override public void onReceiveLocation (BDLocation location) {if (Location = null) return; StringBuffer sb = new StringBuffer (256); sb. append ("time:");

Java's StringBuffer class

Append, insert, and delete, which are the main differences between the StringBuffer and the string classes.A, Append methodPublic StringBuffer Append (Boolean B)The function of this method is to append the content to the end of the current StringBuffer object, similar to a string connection. After the method is called, the contents of the StringBuffer object also change, for example:StringBuffer sb = new StringBuffer ("abc");Sb.append (TRUE);The valu

Parsing-----Using ADO to query and manipulate data

I. Appending and deleting strings using the StringBuilder class1. Creating an object of the StringBuilder classStringBuilder sb=new StringBuilder ("Initial string value");2.Append () Method stitching stringsSb. Append ("hehe");The result is: initial string value hehe3. Insert a string at the specified location using the Insert () methodSb. Insert (position, string);Sb. Insert (2, "on");The result is: Initia

In asp.net use JavaScript display information Hint window implementation principle and code _ Practical skills

In asp.net use JavaScript to display the Information window, you can download a DLL from the Insus.net blog and place it in the site's Bin directory.Download AddressCreate an ASPX page, and then do several actions in the. Aspx.cs, one is to reference the namespace, instantiate the object. Then write the JavaScript script in the Page_Load event: Copy Code code as follows: protected void Page_Load (object sender, EventArgs e) { String message = "Welcome, insus.net!"; StringBu

Thinking logic of computer programs (30), thinking Logic

Thinking logic of computer programs (30), thinking Logic The previous section introduced the String, and mentioned that if String modification operations are frequent, StringBuilder and StringBuffer classes should be used. The methods of these two classes are basically the same, and their implementation code is almost the same, the only difference is that StringBuffer is thread-safe, while StringBuilder is not. The concept of thread and thread security will be detailed in subsequent sections. He

The simplest Virtual File System Code in linux-VFS

Corbet "); # Define LFS_MAGIC 0x19980122 /* * Anytime we make a file or directory in our filesystem we need * Come up with an inode to represent it internally. This is * The function that does that job. All that's really interesting * Is the "mode" parameter, which says whether this is a directory * Or file, and gives the permissions. */ Static struct inode * lf

Code details for generating and parsing data in Xml format

Using xml as a carrier for data interaction is a very important feature in Android. for example, weather forecast data, text message backup data, and messaging data can all be stored in xml 1. Generate and parse data in Xml format Using xml as a carrier for data interaction is a very important feature in Android. for example, weather forecast data, text message backup data, and messaging data can all be stored in xml The format is transmitted over the network. The XML format is clearly written a

HttpWebRequest Uploading Images

");//:8888//construct send data StringBuilder sb = new StringBuilder (); The data for the text field, splits the text field in user=ekingpass=123456 format, and constructs SB. Append ("\ r \ n"); Sb. Append ("\ r \ n"); Sb. Append ("------Webkitformboundarylaikcubrgd1prvji");

The use of StringBuffer

(); StringBuffer Convert to String2. Common methods of StringBufferThe methods in the StringBuffer class mainly focus on changes to strings, such as Append, insert, and delete, which are the main differences between the StringBuffer and the string classes.A, Append methodPublic StringBuffer Append (Boolean B)The function of this method is to append the content to the end of the current StringBuffer object, similar to a string connection. After the method is called, the contents of the StringBuf

The difference between the usage of "turn" StringBuffer and the string

Append, insert, and delete, which are the main differences between the StringBuffer and the string classes.A, Append methodPublic StringBuffer Append (Boolean B)The function of this method is to append the content to the end of the current StringBuffer object, similar to a string connection. After the method is called, the contents of the StringBuffer object also change, for example:StringBuffer sb = new StringBuffer ("abc");Sb.append (TRUE);The valu

The use of StringBuffer

"; Assignment types do not matchStringBuffer s = (stringbuffer) "ABC"; There is no inheritance relationship and cannot be strongly turnedThe code for the StringBuffer between the object and the string object is as follows:String s = "abc";StringBuffer sb1 = new StringBuffer ("123");StringBuffer SB2 = new StringBuffer (s); Convert String to StringBufferString S1 = sb1.tostring (); StringBuffer Convert to String2. Common methods of StringBufferThe methods in the StringBuffer class mainly focus on

[Reference] Methods for venting, please do not use it easily

Q: Aren't you talking about all the original ideas? Why do you still post them to others? A: No way. This text is too Bt. I smiled, smiled, and posted it from: www.0x54.org. Do not use it easily.Do not use it easily! I have to make a call. A man receives the call after dialing. I politely said, "I'm Hu zhengming. Please refer to" WAN HONG ." The phone hangs up after a click! Unexpectedly, there were such rude people. I found the phone number of wanhong. This is the correct one. It turns out that

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