Drawing Of Functional Graphs?
Nov 18, 2011how can i draw a graph of a function using visual basic.net 2010? eg graph of y=cos2x +5x
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How To Create A Fully Functional Browser
Mar 1, 2011I want to create a fully functional browser with a download manager using Vb-2008.
View 2 RepliesThe Vertical Scrollbar Of Datagridview Will Be Un-functional
Sep 1, 2009I faced a problem that the vertical scrollbar of datagridview will be un-functional.Here are the steps to rebuild the problem:
1. Add a new datagridview component.
2. Add a new timer to set the datasource of datagridview at a regular time. For example, I add following code on the Timer1.Tick event:
Dim v_connDB As New Odbc.OdbcConnection
Dim v_daCA2 As New Odbc.OdbcDataAdapter
Dim v_dsCA2 As New Data.DataSet
[code]....
3. Then I press the down arraw key on the vertical scrollbar with mouse while the datagridview re-bind its datasource, the vertical scrollbar will be un-functional. And the action will be changed to be re-size the datagridview will I press the vertical scrollbar position.So, is it the bug of datagridview? How can I fix it?
Timer Is Functional / But Is Formatted Improperly Upon Starting
Feb 9, 2011I am having a bit of trouble with a countdown timer I am creating. I work in a call center and the average handle time of each call is important, so I created a countdown timer for the agents to use to help them manage their call time. Along with a tab for the average handle time (AHT), there is a countdown timer for their break time, and also a stopwatch tab. It functions well, there is only one snag I am encountering. When I am on the "AHT" tab for example, the timer counts down from 8 minutes in the format of 00:08:00. (hours, minutes, and seconds are all in separate text boxes) When I click start to start the timer, rather than counting down from 8 minutes in this format, it goes to 00: 8: 0. Then it goes to 00:07:59 and counts down properly.[code]This isn't all of the code for the program, but it is the code for Timer1 for the AHT tab, and the code for the start button for the AHT.
View 10 RepliesActiveX Object Converted To Be Functional To WPF Standard Procedure?
Aug 20, 2008I have an ActiveX object converted to be functional to WPF (standard procedure: Windows Forms control Library and then embedded into the WPF project using a Windows Forms Host controller). Everything works ok with a simple bug from time to time.I have some things in the Load Event that access the ActiveX controll properties and sometimes I get the error "Exception of type 'System.Windows.Forms.AxHost+InvalidActiveXStateException' was thrown."I guess this happens because the control didn't load before I'm trying to access the properties. That's why I put my properties on a DispatcherTimer with the interval 2 seconds in order to execute them later but I get the same error.
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Rotational Functional Tester Tool - Memory Release
Sep 29, 2011I am using Rational Functional Tester(RFT) tool with Visual Studio 2010. The scripts are written in Vb.net. The application gets slower frequently and sometimes the browser gets hang..I assume the problem is in memory leakage. We are cleaning the memory of objects by calling dispose in finally but still there is no improvement. How can we increase the performance at the best in terms of memory.
View 14 RepliesRenaming - Developed Fully Functional Application At Client Area
Sep 1, 2009I would like to inform you that i developed fully functional application at client area . and then we need to create another application with some different functionality my problem is :
1 - i want to rename solution , and if so all files should be renamed .
2- if i run the app it should take the new name in Task Manager !.
Tab Control, Which Contains Two Different Graphs?
Jan 31, 2010I 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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Chart Controls - Cannot Do Graphs
Dec 23, 2010Somehow 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 RepliesGenerate Different Graphs In VB 2008?
Oct 23, 2009I 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 RepliesAdding A Dynamic Charts And Graphs?
May 11, 2011i am working on a vb.net windows application. i want to incorporate the dynamic graphs and charts in the application.
View 1 RepliesGenerate Dynamical Graphs In Program?
Jan 26, 2009I want to generate a dynamical graph or bar chart X vs Y . Please send me a example I can manage the rest
View 2 RepliesHow To Plot Graphs Using MS Chart Control
Jan 7, 2010I'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 RepliesIDE :: ClickOnce With Power Packs For Graphs
Apr 24, 2010I 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?
VS 2008 X-Axis For Graphs In Excel?
Nov 9, 2010I 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.
VS 2010 Tabpages - Decimals And Graphs
Sep 28, 2010Tabpages: 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?
Draw Graphs To Display Data Of Listview?
Jan 26, 2010I 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 .
Preparing Multiple Line Graphs With VBA Code
Jun 25, 2009This 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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Drawing Pixels With Me.creategraphics In System.drawing (yay)?
Jun 3, 2012draw individual pixels, without resorting to drawing a line and setting it's length to 1. Is there an actual ability to draw a pixel that is just 1 pixel big?
View 2 RepliesChart Control - Creating Graphs Using Crunched Data Stored In Array List
May 7, 2010Recently 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?
Drawing On Picturebox Vs Drawing On Form?
Feb 18, 2012I need some code to draw a resizable, draggable rectangular cursor (or selection box) on a picturebox. I found some excellent code (albeit rather old) that does just that, but on a form rather than a picturebox. I have tried converting the code - basically moving things to the picturebox events (Paint, MouseDown, MouseMove etc). It nearly works but leaves a trail behind it when you move or resize the cursor. In other words, the selection rectangle is not being erased before being drawn in the new position.
Is there some fundamental difference between drawing graphics on a form and drawing on a picturebox that would cause this behaviour? Something like, when you invalidate a form and cause a redraw it erases what you did last? If not, then I just need to dig a bit further and work out how the cursor is being erased from the previous position.
Here's the original code that works fine on a form:
Private DragRect As New RectangleF(20, 20, 100, 80)
Private Adornments(7) As RectangleF
Private MouseInRect As Boolean = False
[Code]....
Adding Picture To Dynamic Picturebox From My.resources In .dll - Duplicate Semi Functional Picturebox Added Too
Jan 27, 2010when adding picture to dynamic picturebox from my.resources in .dll a duplicate semi functional picturebox is added too, behind the picturebox i intended to add. has anyone seen this happening before or can provide any insight into this?
View 1 RepliesClick Button To Insert Drawing, Click Drawing To Get Option To Delete - VB Versus Access
Jun 21, 2010Say I have 3 Buttons, labelled: Unit 1, Unit 2 and Unit 3. When I click on any button I want a drawing of that unit to appear on screen at a pre-specified starting point. Thereafter when I press any other one of the buttons the unit drawings appear alongside each other in a line. So I could end up with:
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Error: Operator '=' Is Not Defined For Types 'System.Drawing.Image' And 'System.Drawing.Bitmap'
Aug 17, 2009With this line...
If PictureBox1.Image = My.Resources._2star Then
I get this error: Operator '=' is not defined for types 'System.Drawing.Image' and 'System.Drawing.Bitmap'.Is there another way to say = with images?
Insert Command Not Functional After Clear Command In Vb Report
Aug 21, 2011User need to select their prefferable data to show in report. What i did is i have a clear command first to delete the temporary table. The temporary table is basically a table to stored user selection parameter data. After the clear command, i have
a insert command to insert user selection data into the temporary table. What happened now is when i run the program exe, first run of the report is work fined, but not the second and the following times of execution. It will return null or blank report. The weird thing is when i execute it from development environment, it seem like the report is able to pick up user selection parameter and run the report for the first times and the subsequent execution.
Convert An Object Form System.Drawing.Graphics To System.Drawing.Image?
May 23, 2009Is it possible to convert an object form System.Drawing.Graphics to System.Drawing.Image?
View 4 RepliesError Value Of Type System.Drawing.Image Cannot Be Converted To System.Drawing.Icon
Jan 21, 2010Here is my favicon code
Dim oURL As Uri = New Uri(e.Uri.AbsoluteUri)
Dim favicon As Image
If oURL.HostNameType = UriHostNameType.Dns Then
[code]....
The error is Value of type System.Drawing.Image cannot be converted to System.Drawing.Icon Is it even possible to make the favicon be the icon of the form?
Value Of Type 'System.Drawing.Image' Cannot Be Converted To 'System.Drawing.Printing
Apr 3, 2009im using an MDI parent form and MDI Child. how can i print the image that's inside a picture box that's inside the Child from a button that's on the Parent?when i try to use print preview or print dialog, i can't get it to recognize that the document is the picure inside the picture box. i've looked up this error message:Value of type 'System.Drawing.Image' cannot be converted to 'System.Drawing.Printing.PrintDocument'.[code]
View 6 RepliesNoticing A "mysterious" Change To Text Files Used For Graphs Using Zedgraph Libraries?
Jan 4, 2010I am noticing a "mysterious" change to text files used for graphs using Zedgraph libraries.In a 100-line data set, about four to five records inexplicably "disappear"! These are the SAME files which only 24 hours earlier showed the complete set and were successfully read.
View 1 Replies'System.Drawing.Image' Converted To 'System.Drawing.Icon&#
Apr 9, 2012I am making a web browser using geckofx. I have put the favicon in a picture box but I have changed my mind and now I want it as the form's icon. The code for the favicon is:[code...]
The favicon works fine in the picture box but i think it will look better as an icon. If i change the line Me.PictureBox1.Image = favicon to Form1.icon = favicon I get the error Value of type 'System.Drawing.Image' cannot be converted to 'System.Drawing.Icon'. How can I get this to work?