I have a total of 102 values associated with a fieldname called ArrivedFlag.Then I have a TextBox control with an id of txtFlag on the markup page.In my codebehind, I have an if statement that says:
If txtFlag <> "value1" and txtFlag <> "another value" Then
lblMessage.Text ="You don't have the ability to view details"
end if
This works fine.However, given that there are 102 values, I feel that doing an IF statement 102 times is a bit inefficient.
Dim allowedFlags = New List(Of String)()
With { _
"value1", _
"another value"
I was asked by a client to create a tool that would let a user add/modify/delete/read content from a database. The content can be read from TextBoxes.
My question is, what is the best way to manage GUI locks/unlocks for the different states of the program. IE: If I'm in a "insert" mode, some GUI elements should be enabled, and some not. If I'm in the "read-only" mode, a bunch of them should be disabled... etc.
I am writing a program that uses an array with three columns and a varying amount of rows. I need to load info on a list of files in an archive(specifically: file name, size, path), and I am wondering what the most convenient way to store strings(to be loaded into the array) is.
For example: I tried creating a new .resx file in my project, and writing a function to be executed on form1_load that reads the strings from the .resx file and places them in the array in their correct column, but unfortunately had no success.
I really have no idea how resx files work, I can put strings in them using the resource editor, but I don't know how to retrieve them using resourcemanager.
I would just put the info straight into an array, but it's much easier to update a .resx file when the archive changes than it is to update the code.
Could someone please tell me how to use .resx files in vb.net? Or an easier way of accomplishing my goal?
I import decimal values from my SQL Server into the TextBoxes 1-4, which works fine. But when I try to add the values together into another textbox the answer is just the values combined like a string...?The column of the table in the SQL server has a datatype decimal(18, 2)I have also tried to convert the values in the textboxes into int, str, double... Nothing seems to work...
I am now convinced there is no such thing using VB 2010 Express. I have read, re-read, studied, copied and pasted code to no end and all I get are error messages galore. It appears there is a big gap between what's on line as far as tutorials and the code that VB 2010 Express will accept. I hate to sound so lost but at the moment I am. I used to program in BASIC and QBASIC. I was a master at opening up ascii text files, reading them in sequential order, sorting, manipulating, then re-writing them. It was all so easy, like this: [code] That's all I want to learn how to do for the moment. But every tutorial or article I find goes off in to wild tangents about How to Manage Directories or it reads the entire text file into one giant object. Or worse, there's some code which looks promising but it won't run under VB 2010 Express or it might run but the author leaves out important parts of the code that have to be declared ahead of the subroutine....you all know what I mean. It can't be this difficult to just read a text file one line at a time, therefore it shouldn't be so difficult to find an accurate and up to date article on this.This is for really rough programming. I don't need an interface of any kind. The user, will not even need to know that anything is happening. I simply want to read text files, manipulate what's in them and then re-write the edited text.
im using dreamweaver and i have a table in which i have an image. When i add another table under the table existing it comes right at the bottom. What should i do to that table so i can move it and place it anywhere around the page. displaying my data wherever i want. And another problem is that, when i place something on the top it doesnt show up there it comes slighty away from where i had placed.
Id'like to pass some variables (string and integers) to a class, and when I call a method of that class, it has to change the original variable.I know it was not impossible in C#, but I'm using VB2010, I made a C# project into my solution, but methods using pointers are hidden into VB. How can I make that kind of change?
An example:
Sub ChangeValues() Dim A As Integer = 1, Str As String = "Start String" Dim X As MyClass(A, Str) X.ChangeInt(2)
What is the best way for me to have several datasets ?i've thought about creating a routine for creating datasets with a number in their names, each one with the desired data, but that's not very intelligent (although might work)i'd like to create what would be like an "ARRAY OF DATASETS"
[Code]...
(obs, i've done the same code loading one XML to one dataset and it works perfectly, i've gone back and forth more than one time to assure that it isn't just a logical mistake, it's syntax and lack of programming knowlegde.
What I want my program to do is to make a selection from the ComboBox and it will be added to the ListBox. If the selection is already in the ListBox, a message will appear.
Note: Project / Properties / Option strict is On This is my codes, but the If-Else doesn't seems to work.
For Each country As String In lstCountry.Items Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cbxCountries.SelectedIndexChanged [code] .....
I have data source and table that I can bind to my controls and datagridview. I can add records to data table and i can view on datagridview but I can't update and Delete records using datagrid. I have following code.[code]
I'm creating a small program in Visual Basic, using Visual Studio 2010, which communicates with a GSM modem via serial port.The connection works, I can even communicate properly with the modem and I can also send sms and mms .. But I can not handle the modem answers ... I'll explain:If I send a command like AT + CSQ modem replies with + CSQ 22.0. This command gives me the value of the signal as a response on a scale of 0-30 ... I can see on the screen (in a dedicated console) but I would like to manage the response in the sense that I would do something like that
IF (answer.text = "+CSQ 22,0") Then label1.text = "Good" ELSE label1.text = "Bad" END IF
I have an application that works together with a SQL database. This database has more than 40 tables and my applican has to extract different situations from those tables.
I have predefined some queries for the situations that I know they need to be in the application.
The idea is that I need kind of a module in which an user can create his own situation based on the tables, views, functions and procedures that already exist in the database. Something like it is in SQL. There has to be a library or something which will read my sql database directly from my application and which allow the user to create his own queries and situations.
I am now building a project where I need to regulate the monitor brightness from software using vbnet.I have now put 2 buttons (+ and -) but I cannot adjust brightess monitor from code usinf these buttons!=!=!=!
I am new to using Visual Basic. Normally when designing other projects, CAD for PCBs, C source code, Mechanical parts etc, I maintain a sequence of design files with minor revision name changes such as r1, r2, r3 etc as I develop the design/debug process. This makes it easy to go back a step if the recent changes I've made prove to be a problem and need to be deleted. I am not sure how to do this using Microsoft Visual Basic 2008 Express Edition.
I am reading data from an XML file. This local XML file will be updated by another application, and I will need to periodically re-evaluate the XML file, and only import new data into a list box. Furthermore, I want to be able to click on a particular item in the listbox, and display the other values about that particular XML entry.
So, I suppose this is a multi part question. What is the proper way to import only NEW data into the program, what is the proper way to store the data, and how do I associate a value in a listbox with the data stored elsewhere?
I've considered multidimensional arrays, but have been told that strings to char arrays and then back to strings is a terrible way to manage the data, but was never offered an alternative.
The first thing that I have found difficult to manage is when a program has several forms. Basically what I do is just hiding one and showing up the other form. it does not look that nice. I was thinking of having one form and laying all the other forms on that one. Let me explain myself more thoroughly. Let's say to the left hand side of my form, i have few group boxes with buttons. So when clicking a button, it should automatically close the form and show up the new one on the main form. Its like refreshing the form. So what I mean is that there is only one main form and clicking each button will show another form.
I am making a application to help manage your files and notes on different projects, you can organize your notes, images and videos, However i am stuck on what coding to use to manage the project, what my.settings etc.
I have the following problem, a table "table1" contains 10000 telephone numbers, this table is source for 5 combo box contained in a form, I need that when I select the first tel N in the first combo, this number is not any more available for the combo 2, when I select the second number in the second combo, the first 2 numbers of the table 1 are not any more available for the combo 3 etc. Every record (in form) contains 5 combo. The Tel N selected into the combo are source for other table called "table2". I've try with all the type of query between table 1 and table 2, and use the result as source for the combo, I've try with IIf but this is works only for the first combo.
I've created some messy code to look at the Readystate of each WebBrowser control and using boolean variable to track which WebBrowser control is done what. The time it takes to load 1000 URL's with one WebBrowser control is about 10 minutes. Multiple controls are needed for speed.
Here's the pseudocode of what I want to do:
Read a line from a file
Which WebBrowser is currently available to do work Navigate to URL Which WebBrowser is done loading a URL
I am trying to use RAP (rabid application development). So I have created a database with a datagridview to show all information and textboxes to modify the informations. So far so good.
The problem is created when I try to use the search facility on the datagridview. The search is working but the problem is that the textboxes are not following the search criteria . I can configure this manual but I would like to know which is the easier way to configure the textboxes to show the value of my search criteria.
I also want to know how when I finished with the search criteria and empty the search the text boxes to make the connections back as they were before.
I want to use Devanagari font in Textbox in VB 2005. The characters are displayed correctly but the rendering is not ok. For kira it shows kari.Also some compound letters are not displayed correctly.The letters are displayed correctly in RichTextbox.though Textbox can be handled with Richtextbox how to do the same in Listbox, Listview etc?
I have a spreadsheet with Proj Numbers: "049410-001" in column B6:B60. I have the URL to the Database: I want the links to show up in the A column with the Tag being the Proj Number "049410-001".
Also, if I could clear the A column and use it "A column" to enter the Proj Numbers and then run the Macro to enable the Hyperlinks I could eleminate the Proj number taking up 2 columns. I have 80 rows set aside for projects so it needs to go through and enable the links that have text in them.
i used =HYPERLINK(E24,B105) (E24 was another wasted cell that combined the static first part of the link, and the proj) as the formula way to do it, but I'm trying to make a Macro that does it behind the scene. but I am just getting into VBA, and I have no idea what i'm looking at when I look at a code.
We use VB2005, Along with Powershell to manage our exchange infrastructure. VB.Net codes have been compiled to support MIIS2003 Operations. One of the operations require the functions in VB.net to write an output into .csv file. This file receives jibberish characters as input after the functions are executed.
I have a dataset with names in it and displayed in a gatagrid on a windows formi want to filter (search) for a specific name stored in a variable by:Names.TblNamesBindingSource.Filter = "LastName= '" & VarLastName & "'"Say if my variable (VarLastName) = "O'brien"I get an error saying i'm missing an operand becouse of the ' in the name.
I'm trying to findout a way to manage another program windows programaticly. Such as enable/disable minimize/maximize buttons and whole border frame itself. Also i'm trying to prevent or disable showing that program on taskbar.
I'm trying to write a program wich culd run several other and grind them on screen without border frames or/and without buttons.
