foxpro

问题 I have two tables, user and company, and I have a combo box in which I list all the companies I have in the company table. My question is, how to use databinding in foxpro to display the company name? When I save the information to the database, I only need to save the company ID; same for display, from the company ID I have in my user table, I would like to display the company name. I tried using the properties : CmbCompany.controlesource = myTable.companyID cmbCompany.displaysource =

问题 Im trying to create DBF file in FoxPro spec, but idk how to insert date. I dont know how to convert java Date to this: FoxPro's field is 2 32bit integers: one stores the date, the other stores the time, stored in reverse byte order. The date integer stores the number of days from 1/1/4712BC. The time integer stores the number of milliseconds from 00:00:00. Its easy to get days and milliseconds with JodaTime: DateTime start = new DateTime(-4713, 1, 1, 0, 0, 0, 0); DateTime end = new DateTime

问题 I have a dataset given in .dbf format and need to import it into R. I haven't worked with such extension previously, so have no idea how to export dbf file with multiple tables into different format. Simple read.dbf has been running hours and still no results. Tried to look for speeding up R performance, but not sure whether it's the case, think the problem is behind reading the large dbf file itself (weights ~ 1.5Gb), i.e. the command itself must be not efficient at all. However, I don't

问题 VS 2010, VB.NET, WINFORMS. In my app i have a need to import foxpro database tables and exclude the deleted records. The problem is that FOXPRO tables keep deleted items inside the same table. I have tried using DELETED=NO in the connection string but vb throws "Format of the initialization string does not conform to the OLE DB specification." My function is as follows: Dim _DBConn1 As String = "provider=vfpoledb.1; Data Source = " & file1 & ";DELETED=NO" Dim _DBConn2 As String = "provider

问题 I want to read a simple foxpro dbf file and convert it into xml file and save it into my pc. Is it possible to read and convert simple file.DBF with out using any db connection? 回答1: Yes, It is possible. Create connection on DBF table as appropriate based on this link http://www.connectionstrings.com/dbf-foxpro. Later you get the entire data onto a Dataset. You can save data set wherever you want to in XML format. 回答2: Here is the code... private void btnBrowse_Click(object sender, EventArgs

问题 Is there a way to unload the default .NET AppDomain from an unmanaged application? I'm using a third party tool called .NET Extender for using .NET assemblies from within Visual FoxPro which allows me to host .NET controls and also make use of .NET classes and methods from within a FoxPro environment. The problem I'm having is that when debugging an application from within Visual FoxPro it runs the everything under the main vfp9.exe application file for the IDE and it appears that handles to

问题 How can i get list of files in a directory programatically in foxpro? 回答1: ADIR() -- create an array based on a directory using whatever wildcard... local array MyFiles[1,5] nFilesFound = ADIR( MyFiles, "C:\Somepath\*.dbf" ) for i = 1 to nFilesFound ? "Name Of File: ", MyFiles[ i, 1] ? "Size: ", MyFiles[ i, 2] */ i,3 = date... i,4 = time, i,5 = attributes endfor 回答2: You can also use the File System Object to get more information: fso=createobject("scripting.filesystemobject") fld=fso

问题 I have a huge collection of visual foxpro dbf files that I would like to convert to csv. (If you like, you can download some of the data here. Click on the 2011 link for Transaction Data, and prepare to wait a long time...) I can open each table with DBF View Plus (an awesome freeware utility), but exporting them to csv takes a few hours per file, and I have several dozen files to work with. Is there a program like DBF View plus that will allow me to set up a batch of dbf-to-csv conversions

问题 I am a fairly novice, enthusiast programmer. This is my first question, but I have been using stackoverflow for valuable information for several months now. First, some context: My current, somewhat jack-of-all trades job in an extremely small (<10 employees) specialist physician's office has put me in a unique position where I have free reign (and moderate resource backing) to develop and implement any kind of application/tool without any kind of demand or pressure as the current system

问题 I'm working with a visual fox pro database (.dbf file) and I'm using the dbf python module. Heres an example: myDb = VfpTable('table.dbf'); Now I can exclude deleted items with this by doing the following: myDb._use_deleted = None; My question(s) is/are is there an easier way to do this? Maybe a function? I hate accessing "private" variables. Also, without setting this property, how can I determine if a row has been deleted? They are still technically in the database so is there a flag? A