This is one of my first steps into the magnificient world of visual basic. I looked on many forums, but most of the time the questions asked are much more complex than mine. I am looking for a piece of code for the preparation of multiple graphs in excel 2003.
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Using VB.Net I'd like to be able to replace a range of characters in a string in a single line of code.
i.e. something like
Dim charsToReplace as string = "acegi"
Dim stringToBeReplaced as string = "abcdefghijklmnop"
charsToReplace.ToArray().ForEach(Function (c) stringTobeReplaced =
[Code]....
I am using the given code to copy my database files...it works like a charm in debug mode but as soon as I create a setup, it stops working. The error is
"Database Detach Failed"
I tried checking the code line by line and found that the code does not enter the IF block.I have no idea why.
Public Sub bk()
Try
Dim strDatabasePath As String = My.Computer.FileSystem.CombinePath(My.Application.Info.DirectoryPath, "LIC.mdf")[code].....
Is there a way to show the line number of the line of code that caused an exception within a Try...Catch block?
View 5 RepliesI am using WebBrowser1.DocumentText to get a websites source code, and then parse a string. I am trying to view the source line by line, and doing it as follows:
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However what is displayed is each character from the source code, rather than the line. I am making the client log into a website, and the needed value from the source code is then parsed, so I need to use the WebBrowser type to get the source code.
show me a simple code for downloading a file from internet with a URL,Line by Line with streamreader?
View 6 RepliesI've written an app that usses an Access 2003 database. Upon starting the app, it connects with the database.When ever it connects to the database, it pops up a message box "Windows Installer" "Preparing to install...".
If I stop it from connecting to the database this message box does not appear.
If anybody is having code for comparing files line by line using vb.net.
View 2 RepliesI have a form, with a tab control, which contains two different graphs. The graphs work fine, however, i want to be able to switch between the tabs, and be able to see the graphs!. Unfortunately, it seems to clear the graphs. Please can guide me as to how i could fix this.
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I have this string just down loaded of a Unix server. I would like to remove the box (0x0A) Unix end line code; then replace it with CR+LF normal ASCII code. Also, I would like to do the replace before I save the data, while it in memory.
View 14 RepliesSomehow my vb.net 2008 does not have chart controls and it seems like i cant do graphs how do I get it. I've tried downloading it but my computer says I have to instal framework 3. Which I have.
View 3 Replieshow can i draw a graph of a function using visual basic.net 2010? eg graph of y=cos2x +5x
View 1 RepliesI want to generate different graphs in vb.net 2008. Please guide me i dont know how can i do that, where from i should start. I have different values which i want to show by graph. Like Service distruption time conventional scheme vs proposed schme. How can do this.Please guide me with sample code example. Can we make it in excel and how can we add it in vb.net or can we open excel in it?
View 7 Repliesi am working on a vb.net windows application. i want to incorporate the dynamic graphs and charts in the application.
View 1 RepliesI want to generate a dynamical graph or bar chart X vs Y . Please send me a example I can manage the rest
View 2 RepliesI'm trying to plot a graph in VB.Net, using MS Chart Control. I'm receiving streaming data, distance vs X data (Sine wave) and Z data (Cosine wave) every 1 msec. maximum data points varies from 2000 to 5000. I would like to plot this streaming data on a graph, distance on x-axis and two series X data and Z data on Y axix.
View 3 RepliesI have used the vb power pack for graphs and the following to files are included in the application files.
Microsoft.VisualBasic.PowerPacks.Vs.dll
System.Windows.Forms.DataVisualization.dll
But the install only works on the machine it was built on, if I take them out it installs but no graphs. How can I get this to install on all machines?
I have successfully created excel application, workbook, worksheet and graphs in excel through vb.net, but I am not able to choose which data to plot on teh x-axis when I plot graphs.I don't really know how to do this even in excel itself, and googling did not help at all...how to create a graph with desired values on the x axis in excel through vb.net, that would be nice.
range1 = Data.Range("A1", "B" & (t2 - t1) / i)
graph1.SetSourceData(Source:=range1)
This is my code, since I have index (t2-t1)/i as the index of the data I want to plot on the y-axis, and I want to plot all A1 values on the x-axis.
Tabpages: Using a button, how do I go from tabpage1 to tabpage2? I have it kind of sorted, only not: Button click tabpage1 send to back() or hide() tabpage2 show() The problem with this, is it does not actually turn the page, and the tabpage1 tab still shows at the top. Decimals: Epically basic, I guess. I have calculations that does, for example: 10/6 = 1.666666666667 How do I get it to say 1.667 only?
And Lastly, Graphs: I have a line graph. I have fixed series as a envelope for the variable series to sit in. Again, epically basic - How do I make a series that draws a line for a variable?
I am using vb express and want to display graphs for the data displayed in listview through queries. For example I display data in Listview with the following query:
Dim cmdText As String = "SELECT IncomeMode, SUM(AmountPaid) AS Amount FROM DailyIncome WHERE DIDate Between @START and @END Group By IncomeMode"
I have downloaded Ms Charts for vb.net. How I can code to draw the graph of the result of above query displayed in Listview .
How to comment multiple lines of code/block of code in VB?
View 5 RepliesI am working with VB 05 Express, and I know C has this, but I want to comment multiple lines of code, without always having to put the little ' symbol on ea. line. Like, I think C has something like this-
\*
Comment! Comment!
Comment! Comment!
*/
or something like that !
.Basically I'm trying to code a program to output class names for a game which then allows the user to copy and paste the string of class names into the game itself.The template for class names in the game look like this ["name",quantity];So in the code for btn_add I have (which outputs to a text box):[code]How can I change the ' into "s without VB.net throwing up errors?
View 1 RepliesRecently I have learned visual basic 2008 express edition and developed programs for data crunching and analysis. The VB 2008 express edition has microsoft visual studio 2008 v. 9.0.30729.1 SP and .NET Framework version 3.5 SP1. Now I want to create x-Y (date-Y value) graphs using the crunched data stored in an array list simulating a data base access. I download and installed the "Microsoft Chart Control for .NET Framework " and try to learn to use it within the VB 2008 express edition using the tutorial. It seems that the chart control did not get installed?
1. Do I need at VB 2008 professional to allow using the chart control?
2. Why after installing chart control, there is no change on the items under the NET components within the Toolbox>ChooseItem>.
3. How do I get to use the chart control under VB 2008 express edition.
4. Any code available to generate versatile graphics without using the chart control? Because the chart control has tons of classes already it seems the best is to just use the existing and downloadable chart control?
I saw the video from microsoft teaching the techique of programming and found out they can comment multiple line and the same time.
View 2 Repliesi have this code
Private Sub GetPrintFunction(ByVal printopt As Array)
Dim Print_Document As New System.Drawing.Printing.PrintDocument
AddHandler Print_Document.PrintPage, AddressOf PrintPage
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The web service returns 6 items per array. If the array return 2 sets of array (12 items), then i have to split it into 2 pages. how can i do it?
Example scenario:The web service should return at least 6 items(1 array)
example data
*redemption date
*reference number
[code]....
if i have two sets of these, then it should be printed on different pages.
I'm having a little trouble deleting multiple lines for a listbox. I know how to remove a single line, which is this: [code]If I change the value for IndexOf to SelectedItems, I get an error stating that -1 is not valid for index.I am guessing this needs to be done using an integer array and a for each but I don't know how to do that. I really never bothered to look much into arrays.
View 1 RepliesI'm dealing with the dreaded <Run/> in Silverlight 3 and having to programmatically create a <TextBlock> and its inlines:
Why dreaded? Because it doesn't work, I guess, the way you'd expect. Exhibit A, below, should produce BARN (with fancy colors for each character), but instead it produces: B A R N
EXHIBIT A
<TextBlock FontFamily="Comic Sans MS" FontSize="88">
<Run Foreground="#A200FF">B</Run>
<Run Foreground="#FF0000">A</Run>
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How can I have multiple If Not conditions on one line?
Here are the combinations that I've tried, but they either don't work, or won't build.
If Not (txtDisplay.Text = "0") And If Not (txtDisplay.Text = "")
statement1
Else
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Is it possible to create a multiple line string in vb.net?
View 7 Replies