uber dataset

I recently developed the C/S architecture software. I just copied it when I read this article in many aspects that I was not familiar with. Thanks very much to the original author. The following is the original article. In daily development, in order to write functions such as adding, updating, modifying, and deleting data, you have to deal with boring code and repeat the work .. The release of the official version of NET 2.0 is undoubtedly a great pleasure for our program developers. Some new e

1 /// Convert a TXT file to a dataset Dataset

/// ///1step: Defining entity Classes/// classPhonenum {intpId; Public intPId {Get{returnPId;} Set{pId =value;} } intPtypeid; Public intPtypeid {Get{returnPtypeid;} Set{Ptypeid =value;} } stringPName; Public stringPName {Get{returnPName;} Set{PName =value;} } stringPcellphone; Public stringPcellphone {Get{returnPcellphone;} Set{Pcellphone =value;} } stringPhomephone; Public stringPhomephone {Get{returnPhomephone;} Set{Phomephone =value;} } } ///

Step 1: Add enginegeodb license Initialization Iaoinitialize aoinitialize = new aoinitialize (); aoinitialize. initialize (esrilicenseproductcode. esrilicenseproductcodeenginegeodb ); If this parameter is not added, the following error occurs: "The application is not licensed to create or modify schema for this type of data" Step 2: connect to the SDE Database VaR factorytype = type. gettypefromprogid ("esrisponcesgdb. sdeworkspacefactory "); var workspacefactory = (sdeworkspacefact

The code is as follows copy code //Multiple table Multiline multiple columns foreach (datatabledtinyourdataset.tables) //traversal of all DataTable { foreach (Datarowdrindt. rows) ///traverses all rows of foreach (DATACOLUMNNBSP;DCNBSP;INNBSP;DT). Columns) //traverse all Columns Console.WriteLine ("{0},{1},{2}", dt.) TABLENAME,NBSP DC. COLUMNNAME,NBSP;DR[DC]); //table name, column name, cell data } //traverse a table Multiline multiple columns foreach (da

Export dataset data to Excel and dataset data export 1. Write the data to the HTTP output stream/the exported data is in one row. Public void CreateExcel (DataSet ds, string FileName) {HttpResponse resp; resp = Page. response; resp. contentEncoding = System. text. encoding. getEncoding ("GB2312"); resp. appendHeader ("Content-Disposition", "attachment; filename =

When dataset is written into the memory stream using the writexml method of dataset, the Declaration line of the XML document is missing. Dataset. writexml (memorystream, xmlwritemode. writeschema). After writing, memorystream does not contain the declaration part of the first line of the XML document. Solution: Write the Declaration line in memorystream. Samp

will not really delete userdataset.tables["Users". Clear (); Mode two: Use DataTable.Rows.Clear Delete, note that this will not retain the deletion state, save will not really deleteuserdataset.tables["Users". Rows.clear ();Mode three: Use bindingsource.removecurrent loop to delete all records, this will retain the deletion state.while (usersbindingsource.current!= null) usersbindingsource.removecurrent (); 8. Replication of dataset data and

Prototype library website-Original release of lecturer Jin Wu, which can be freely reproduced. Please indicate the source! Axure Official Website: www.axurerp.cn Axurerp7.0 function variable operators Repeater/dataset repeater/Dataset Item Repeater item Item. column0 Column name of the repeater Dataset Index Relay item index

Sometimes we often encounter in the actual classification data mining, the class sample is very uneven, the direct use of this unbalanced data will affect the classification of some models, such as the logistic REGRESSION,SVM, a solution is to balance the data sampling, here provides a recommended code implementation , the input and output data formats are required as label+tab+features, such as LIBSVM formatUsage:Usage: {0} [options] DataSet Subclass

Use the stored procedure to return a dataset, sqlcommand-> sqldataadapter-> Dataset sqlconnection userconnection = connection. getconnection (); sqlcommand usercommand = new sqlcommand ("storepname", userconnection); usercommand. commandtype = commandtype. storedprocedure; // Stored Procedure usercommand. parameters. add ("@ PA", sqldbtype. varchar, 50); // Stored Procedure Parameter usercommand. para

Export dataset to excel and dataset to excel I found a lot of such code on the Internet. If it weren't for Chinese garbled characters, it would be too complicated. This is the best one I have ever used. // Ds is the data source, filename is the saved file name publicvoidCreateExcel (DataSet ds, stringFileName) {// sets the information HttpContext. current. resp

Use some DataSet functions to log on to the website, and use dataset to log on to the website. First, I have to complete registration and store my personal information in the database. Secondly, some objects in this section are stored in some documents and need to reference namespaces. Using System; using System. collections. generic; using System. linq; using System. web; using System. web. UI; using Syste