Connect A VB Frontend With A Python Backend Using Sockets?
Oct 26, 2009
I have some really nice Python code to do what I need to do.I don't particularly like any of the Python GUI choices though. wxPython is nice, but for what I need, the speed on resizing,refreshing and dynamically adding controls just isn't there. I would like to create the GUI in VB.NET.I imagine I could use IronPython to link the two,but that creates a dependency on a rather large third-party product. I was perusing the MSDN documentation on Windows IPC and got the idea to use sockets. I copied the Python echo server code from the Python documentation and in under 5 minutes was able to create a client in VB.NET without even reading the System.Net.Sockets documentation, so this certainly doesn't seem too hard.
I'm a bit new to VB.NET and I have a database which I want to connect to an access backend stored on a network drive for multiple users. I can view the Database in the solution explorer and the directory defaults to the project folder. How can I specify the directory to pull from my network drive? VS has copied this datasource and imported it locally which is fine for testing, but i need the file accessible for multiple users. Is this something I do when publishing?
im making a sort of basic server with ban and console broadcast and yea but now i thought to make evry user that's connected (tho the running server)(their ip) in to a listview with their username (that will be defined in to a textbox on the client) any idea's how to do it ? if you want here is my sevrer code :
Form1.vb (Main form for starting stoping broadcasting and such ) Imports System.Text Imports System.Threading.Thread Imports System.Net
[code]....
EDIT : does this server support's mulltiple connection's ?
i made a program that uses sockets to connect the server to client but there is a problem with it when i try it on this ip"127.0.0.1"wich is not a real ip just a loopback to my computer it works just fine when i use my local ip it works as well when i use my main ip from http:whatsmyip.org it doesnt work at all i dont know why it doesnt say an error or an exception but its not connecting so i gave the server to a friend of mine i tried using both his real ip and his local but still not working i dont know why?i mean i am 100% sure of my code...
I'm working on a project where there will be a MySQL database containing data that will mostly be displayed on the web using PHP. However, there is a need here for a back-office data entry application (linked to the same MySQL database) that is feature rich and easy to use.what I'm trying to understand is where we are at with web-based frontends. I find that there are still so many events and features that I can make use of in a Windows Desktop GUI written in something like C#, VB.Net or MS Access. I don't have a lot of experience programming UI for web but it's my impression that it's still more difficult and takes longer to get similar or the same functionality using non-MS web technologies (I dislike ASP.net, sorry) as compared to programming the desktop portion in a traditional desktop application language like C#, VB.Net, or MS Access.
jQuery and jQuery UI are definately making things easier. Also, there's very rich online applications like Google Docs and Zoho but it's my impression that these are programmed by some of the top web UI programmers around, not to mention that it takes longer to write it and intensive testing to make it work in all of your target browsers. It also takes extra time and code to "block" browsers that don't meet the requirements.I know I may not have given enough information here but I'm not sure what I'm missing. If you have questions just leave a comment below so I can edit this post and answer the questions.
The small company I work for just started using this command-line software and it's rather confusing and tedious. I was wondering if it would be feasible to make a GUI frontend and how I would start going about it.If possible, I would like to have it get data to fill in dropdown boxes and such, but at the very least I'd like to be able to hit a button and perform whatever task.
Im trying to develop a frontend for a database project I have been working on, I am using a combobox to select a meal_name and need the primary key to update another table for orders, How can I retreive the primary key using the meal name selected.below is the code I am using to add meal names to the combobox
Private Sub ComboBox1_MouseEnter(ByVal sender As Object, ByVal e As System.EventArgs) Handles ComboBox1.MouseEnter Dim myRow As DataRow Dim CmdStr As String[code].........
I begain in 1971 learning TRS-80 Model III Basic language...later taught myself Lotus 1-2-3 and then DBase. Later, graduated to Visual Basic Stopped at VB 6.0. Now I need to move up to VB 2010...I have been programming for our company for sometime and use VB 6.0 as a front end for numerous Access DB applications.Can you recommend a good book (or books) out there that can help me with using VB 2010 as a frontend for Access?..just need the basics to be able to make connections, query the tables, return the data, update data, etc.
I am writing a GUI frontend for varius console programs and i am in need of assistance... the CHKDSK.exe program is causing trouble.I am using this code:
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click Dim argstr as string = "F: /V" Dim p As Process[code].....
This code works for ALL other programs i have tried except chkdsk... i also tried using this loop for reading:
I have a function in vb that is converted to a dll that I want to use in python. However trying to use it, I get an error message this is the VB function
Function DISPLAYNAME(Name) MsgBox ("Hello " & Name & "!") End Function
and this is how I call it in python
from ctypes import * test = windll.TestDLL print test print test.DISPLAYNAME("one")
But I get errors so what is the right way of calling the dll
Traceback (most recent call last): File "C:Test estdll.py", line 4, in <module> print test.DISPLAYNAME("one")
[code].....
I have been looking around online but no solution so far. Can't use cdll since this is for c progs.
I have always wondered about this and seen this among lots of programmers. Why is a VB programmer or VB code easily dismissed as too noobish and easy while the same does not apply to Python or Python code? After all, isn't Python as easy as VB is? And it does provide drag-n-drop GUI application building also. So why is it that VB is flamed and yet Python is not?
I'm wondering if i can convert vb.net codes to python ?
I have this code"
[code]..............
i guess it's like:
[code].....................
so there any converter ? it would be so nice because i got source code for program in vb.net and as you know it's work on only Windows and i want to make it work in Linux so i need Vb to python converter ..
I have an interesting issue I've run into where I can easily tap into python code from VB in an excel instance, as described here: Calling python script from excel/vba.However, when I mimic the exact same code structure in visual studio in a form, the pyscript.language = "python" line fails. Does anyone know if MSScriptControl.ScriptControl can be used in VB .Net to control python like you can in excel? This would be a lot easier than setting up a com object for my python scripts.
Example code (need to add microsoft script control 1.0 and excel object library):
I have to use VB.Net. Microsoft provides black magic tools (in the Visual Studio IDE) for making AJAX work, but using these seems hopelessly complicated and documentation for these tools covers only the simplest examples. By contrast, writing the scripts myself seems much easier, and I will understand what is going on.
So my question is, is it possible to write my own AJAX javascript (creating the XMLHttpRequest object, etc.), and have the server-side function be written in VB.Net instead of PHP?
I'm trying to create a proxy for cross-domain AJAX POST queries and, in order to do that, I need to be adding the cookies from my client (browser)'s request into the POST request I send to the PHP backend, which is using HttpWebRequest. In order to do this, I'm adding each of the Request.Cookie into the HttpWebRequest.CookieContainer object. For some reason, none of the cookies I add to it ever get to my PHP backend.
I understand from some searches that the CookieContainer object is URI-dependent (I'm not sure how to even explain it!), so perhaps that's the cause of my issues. However, I've tried setting the domain on my cookie to different things and it doesn't seem to affect it. So maybe URI means something different than the Cookie's Domain parameter. If that's the case, I'm stuck.
I'm really struggling here - I'm trying to create a connection string to my TD backend and this is not working unless I create a data source in the project and enter my username & password. (to be stored in the config file?) I just want a simple connection string that will allow me to perform updates - furthermore i would like it to prompt the user for a password initially. I keep receiving the error:"No error message available, result code: DB_E_ERRORSOCCURRED(0x80040E21)" [code]
I want to create a (3n*7) Matrix in python through Iteration, I did this in VB.Net and it worked but it gives me some challenge in Python as this a new language to me. n can be the number of Iterations to build up the matrix, i.e. ; if u iterated 3 times, the matrix will be a 9*7 matrix. Here is how I did it in VB.Net. :
i was create the .exe of vb.net project with sql server in backend. when i install it any other computer that time it is not connect to the data base. whta i do for that.
I'm writing a python plugin for a geo referencing program called QGIS where I want an Excel sheet to do all my calculations for me. For different data points I need to set certain input values into the spreadsheet (which was already written by someone else). I'm fine setting the int values (using win32com.client) with sheet.Cells(row, col).Value = value
For radio buttons I would expect it to work like so: sheet.opt_name.Value = True
But I get the error message: AttributeError: '<win32com.gen_py.Microsoft Excel 12.0 Object Library._Worksheet instance at 0x232878608>' object has no attribute 'opt_name' What are the options attributes of? How do I set their values?
i have two item in form it is---1 is textbox and 2nd is combo box.now i have single value in textbox but there is a multiple value for a combobox with is totally depend on a value of textbox.*i am already add data to the backend files ... in which 1 columns that is called column A it's value is for textbox and 2 column that is called column B it's value for combo box When i write in textbox it's dependent ALL value can be get in the combo box.Can any one solve my problem..
I'm working on a school project which need to be done in Visual Basic. For this I'm porting one of my Python project in this programming language, project which (in Python) is scanning a directory for .py files and then imports them (dynamically) with the __import__ statement, at runtime. It is possible to do this in Visual Basic with .DLL classes?
I am trying to choose a language, IDE and other tools in order to develop a photo gallery application for a Linux platform. Specifically the Raspberry Pi My background is almost exclusively using Visual basic since the early 90's and most recently VB.NET in VS2008
