Is there any better way of handling nested else if statements that have different outcomes?
Here is an example of one of my nested statements to explain:
If My.Computer.Network.Ping(computerName) = True Then
Call InstallVS(computerName)
[code].....
Repetitive Statements: Looking for an alternative to a function or subroutine. Years ago, I wrote programs for a company using a language called "Algol", I am sure some of you know of it and but many more do not, it is a pretty old language. It had a capability that I used called a "Define" where you could take a statement (for example x = y + z ) and create a 'define' which was a simple, short replication of that statement. (x=y+z) could be defined as 'mysum'. You could then use 'mysum' any where in the program in place of the 'x=y+z' statement.
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Is there a similar type capability in Visual Basic? A sub routine does not satisfy the need unless the variables x, y and z are globally dimensioned to the module? I can do this, but would prefer not to. I am expect there is a similar capability, but I personally have only scratched the surface of the VB capabilities.
I am working in a proprietary language based on basic on a measuring machine. I delibritly set the first two checks to fail for testing purposes. The first set of ifs for size X works great. When the code is run and it gets to Size_Y, if the operator picks "no I don't want to remeasure" (returning a 7) the code jumps all the way to the last end if. I suspect I have improperly nested my Ifthens, but I can't see it.
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I am working in a proprietary language based on basic on a measuring machine. I delibritly set the first two checks to fail for testing purposes. The first set of ifs for size X works great. When the code is run and it gets to Size_Y, if the operator picks "no I don't want to remeasure" (returning a 7) the code jumps all the way to the last end if. I suspect I have imped this
View 10 RepliesI want to write two nested loops and inside them "two if statements" when I write an Else statement which has a messagebox saying that ID is not found.. it repeated many times depending on the for loops. I only want to be displayed once !!! but when I wrote my code like this (using exit sub), the message appears when the condition is right and appears when the condition is wrong. I tried to move this statement somewhere else but still I have problems with it.
With EMPDataSet
For I = 0 To .Personal.Rows.Count - 1
For j = 0 To .Work.Rows.Count - 1
If EMP_CPR = .Personal.Rows(I).Item("CPR") Then
txtName.Text = .Personal.Rows(I).Item("Full_Name")
[Code] .....
I have a question about using nested IF statements in a SQL query. I have a select statement that calculates a semester grade -- Dim sqlStr As String = "SELECT 'XXX-XX-' + right(socSecNumber,4) As [Student SSN], Round((firstExam + secondExam +(2*finalExam))/4, 0) AS [Semester Average] FROM Grades that I am displaying the results in a datagridview. I can successfully display the masked social security number and the Semester Average but I also need to convert the Semester Average to a letter grade to display in a newly created column for Grade. Can this somehow be done with nested If or Case statements within the SQL statement or is there a way to pass the Semester Average information as a variable to a nested vb If statement? Basically, I am needing to know how to display the letter grade to the datagridview using this criteria:
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I have a List Table (lstTable) that is on the same form that I am trying to fill in with information from a public structure (ELEM_DATA). I understand nested with statements will work if it is within the same scope but how can I do this with example 2 below:
Example 1:
With me.lstTable.Items(RECORD)
.SubItems(1).text = ELEM_DATA(RECORD).name
.SubItems(2).text = ELEM_DATA(RECORD).number
end with
[code]....
I didnt know if it is possible or if it would be as simple as changing (.name) to something else.
I'm using a series of nested if/then/else statements to make sure a user enters information into each text box or chooses a radio button. What would i use to say if no text is entered in textbox1, then ... also what would i use to make a sure the user choose one or the other radio button? for example i also have a combo box, i used "If SubjectComboBox.SelectedIndex <> -1" for the if statement.
View 2 RepliesNow I have a sub to validate a bunch of textboxes and combo boxes.I previously used many IF statements to validate and pop up different messageboxes and Exit Sub in every IF statement.But I heard that too many Exits will decrease the efficiency and they were not recommended to use. Instead, nested IF is better because it will let the process naturally go to the end.Then I found out that if I use nested IF,it will be hard to read, since messageboxes are all separated from conditions.
View 2 RepliesCan someone give me a site to a tutorial that will help me write a program that will generate a pattern using do while, if else statements,and do until statements. I have been using google but I can't find anything. I need to generate patterns a certain size 6 by 6 or similar such as something like a checkerboard but where the ^ symbols is there a suppose to be a blank space..
View 3 Repliesso far i got
code
For Each item As Reflection.FieldInfo In GetType(NameSpace.ClassWithNestedClasses).GetFields
rtfAppend(item.Name & ":" & Tab & item.GetValue(Me))
Next
For Each item As Reflection.PropertyInfo In GetType(NameSpace.ClassWithNestedClasses).GetProperties()
[code]...
which gets me the simple string vars and properties of my top class, but how can i apply this to loop through all sub classes and get there vars and props?
I am trying to figure out how to do this:
if (phrase = hello) then
"say hello"
if (phrase = how are you?) then
[CODE]...
So basically, I want it to work like a timeline. If I say hello, then it will respond and move onto the next if statement. Get it?
Here is the code I have now:
If phrase.Result.Text = "hello" Then
synth.Speak("Hello to you too")
If phrase.Result.Text.Contains("How are you") Then
[CODE]...
I've created an app (VB.NET) where each installation of the app works with a single local database on the PC. No multiuser and no ability for the user to change databases - the database is effectively part of the app, with a fixed scema, only the data will change.At the moment the database is SQL CE. It has about 30 tables with some simple relationships between the tables.
I'm wondering if there is an alternative to SQL CE that might be faster in this scenario. Although SQL CE is excellent and easy to use, I get the feeling there is perhaps an unecessary overhead when using it for something simple - and it does seem a little slow when my app is doing complex stuff that interacts a lot with the DB. In my prototype I actually loaded the 'database' tables from text files into Arrays and developed subs and functions to perform the database searches etc. It was blindingly fast but I realised it wasn't a scaleable solution because it was an 'in-memory' database. A compromise would be to 'page' data into array when needed, but it all gets horribly complex and that's probably why some very clver people have created SQL CE !
Using VB.net, I have a namespace which I'd like to rename for the future. However, I'd also like to keep the old obsolete namespace for a time to ensure backward-compatibility for our consumers for awhile. Is there a way in .NET to have two namespaces, one ordinary and one that merely is an alternative name for the other?
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From the WINDOWS Date & Time settings FORM is this accessible as an alternative
View 1 RepliesBelow is the code for a linked list search I have tried to implement in to searching through each of the elements of htmlelements .For some reason If element.InnerText = (item) will only work if if is only a string ("example") .Are there any other ways of Implementing the for each loop to search through my item linked list?
Original code for searching for 1 string
Private Sub block()
Dim elements As HtmlElementCollection = webBrowser.document.All
Dim word_found As Boolean
word_found = False
[CODE]...
This is the Loop for item I have tried to implement but is not working ,because of the for each loop .The value of element.Innertext = "" or null when I try to use one of the linked list item[If element.InnerText = (item)] is used and only have a value when a string is used to [If element.InnerText = (google)]
Private Sub block()
Dim elements As HtmlElementCollection = webBrowser.document.All
Dim word_found As Boolean
word_found = False
Dim item As LinkedListItem = words.Head
[CODE]...
I've encountered a problem in a application that I inherited. It contains a combo box that loads information.The problem is that there are more data that the control will hold (32767
View 2 RepliesIs there an alternative to Uri.EscapeDataString? I'm trying to upload an image, by converting it into a base64 string, but I need to use Uri.EscapeDataString on it first, and if the image is big then Uri.EscapeDataString will say that the URI is too long.
View 2 RepliesMy clients web application is using TidyCOM to clean up dynamically created XML files from a SQL database query. With this TidyCOM, they are not able to upgrade the web application to .Net 4.0 framework. Is there an alternative to using TidyCOM so that these dynamically created XML files are validated correctly?
View 1 RepliesWe heard a lot about the vulnerabilities of using QueryStrings and the possible attacks.Aside from that, yesterday, an error irritated me so much that i just decide to stop using QueryStrings, i was passing something like[code]....
View 8 RepliesMy VB application also needs to manage simple appointments in an agenda, however one user has no MSOutlook. Someone knows of an alternative calendar tool, with which I can do this?
View 2 Repliesis there an alternative for timer?
View 4 RepliesSo I've been doing a lot of reading today and apparently SendKeys isn't very reliable anymore.Does anyone know of another alternative to it for what I need:
The application works by the form being positioned over a open window, notepad, word, excel etc and it then determines what it is over, notepad, word, excel etc and then reads the file, and does some processing using SendKeys at the moment.Though I do believe I could probably change the later at some point. The problem I'm having right now is when I try to send the Alt + Tab to change focus it's working roughly 12% of the time.If you are wondering I ran it 50 times and it worked 6 of those,thus the 12%.I'm thinking that is rather unacceptable.This is what I'm using which should work: SendKeys.SendWait("%{TAB}")
XP Service Pack 3 and vb.net 2005
First off, using VB2010. I'm in the process of upgrading some applications from VB6 to 2010 and haveing a great time of it. The current application I'm working on is using Sendkeys of which I have changed over to the WSH.Sendkeys of which is pretty decent. Basically the program is copy and pasting the current open file, reading some data and saving it as a different file type. It also has to change xls files to csv and then saving it to the format as well as a smiliar thing with word. Thus the reason for the copy and paste as it's changing the extension to a dot date (for example, test.830).This is the flow of how it works for a text file (most basic)
1. changes focus to notepad
2. Select all Copy to ClipBoard
3. Open Programmers File Editor and a blank file
4. Paste in text
5. Save as code.date extension to the directory
Excel files obviously have a few extra steps.
I need a good alternative for System.Web that is included in the .NET 4 Client Profile. Currently all of my frameworks are included in the client profile, except System.Web. What is a good alternative?
View 7 RepliesI have an MDI Windows Forms application (.net 2008) that allows the user to associate various file types with the application. I currently do this with a registry entry something like this, that causes the application to load and access the file name via the command line:[code...]
In the pre-.net version of the application, I used DDE (ddeexec in the registry). If an instance of the application was executing when a file was double-clicked in Windows Explorer, it would open the file without starting up a new instance of the application.
Now that DDE has been deprecated by Microsoft, what is the best way in .net for an executing MDI application to open an additional file when the file is double-clicked in Explorer, as opposed to starting a new instance of the application?
I'm running Visual Basic.net. I used to use the INKEY command, available in older DOS versions of Basic, to allow the user to change the flow of a program by touching a keyboard key. It seems to be available only in Visual Fox Pro. Is there an alternative for Visual Basic?
View 4 RepliesIf I wanted to make changes in page site (using with WebBrowser, and only the user will see it) I would do it:
Dim Rstring As String = WebBrowser1.Document.Body.InnerHtml
Rstring = Replace(Rstring, "Some Text To Replace", "<B>Some Text To Replace</B>")
WebBrowser1.Document.Body.InnerHtml = Rstring
In my project i am using begin transaction commit or rollback changes. but this causes lock to the tables in that particular functionality.
So if the any other user does any other functionality those locked table are not available until the transaction is completed. I want to know if there is any alternative to transaction which insures data security but the tables are not locked out.
I assume that this is not possible.Could somebody please suggest an alternative way to display rows from a DB in a nice way. (with word wrap)
View 10 Replies