Excel Scatterplot Chart From List (Of Decimal) Values - .NET?
May 17, 2012
Is it possible to create a plot from List(Of Decimal) values in Excel with VB? I would like to avoid dumping data directly into a table, then creating the chart from that. Here is what I have so far, but I am getting a data type mismatch when I try to assign .XValues and .Values to the list. Is there some sort of conversion that needs to happen to turn a list into a series?
Dim Series As Excel.Series
Dim xVals As New List(Of Decimal)(New Decimal() {1, 3, 4, 5})
Dim yVals As New List(Of Decimal)(New Decimal() {2, 2, 2, 2})
[code].....
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Mar 28, 2011
I am creating a maths programs that draws graphs for the user. so far i have placed 22 values into an array and now i need to import them to excel, draw the graph and import the graph back into the program to display them.[code]...
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Oct 14, 2011
I have a chart in Excel that I'd like to use a subtitle on. There is no SubTitle Property on the chart object, so I looked in the Excel User interface and found that you can only create a sub-title by using a text box. The text box looks like its associated with the chart, not the worksheet, so how would I access that text box from code?
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Jun 22, 2010
Does anyone have any vb.net or vba code that will format excel values or a range of cells to have comma for 100s, 1000s,10000s etc
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Aug 5, 2010
Basically I've coded an Excel 2007 project in VB.NET 2010 that allows you to create charts with a fair amount of interactivity. I want the user to be able to save and reopen this workbook and still have that interactivity in any already-created charts, so they don't have to re-create them.
When I create the charts, I use Sheet1.Controls.AddChart(...), which returns a Microsoft.Office.Tools.Excel.Chart with which I can handle events and such. However, when I reopen the file and look through the Sheet1.Controls collection, there are no Chart objects. Accessing the charts through Sheet1.ChartObjects.Chart gives me Interop Charts, when I need the Tools Charts.
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Sep 14, 2010
I am passing the degree values in the form of "123:09:89".I want to convert this value into its exact decimal value.
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Sep 7, 2011
i have a Chart made in visual designer in vs2010, with some points added like x=3,8,10 Y=2,8,4. Is there any way to extract value for example for x=5 ?
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Dec 24, 2011
i have a dice program that will find the random numbers according to user input as regards dice and throws required. My problem is when i have to display all the values in a listbox but in a horizontal type, were if a value came out more than once it displays the number and a bar for each time it come out and also at the end show the count of the times the number came out, to have a better idea the final chart needs to be displayed in the following format in a listbox as in the long run the program needs to run in a web application, but i am writing and testing in a window form application, then i will transfer to web application and use session variables and timers to control the output and the graph.
3 ||||||||| - 9
5 ||| - 3
6 ||||||- 6
10 ||||||||| - 9
2 | - 1
My code till now is that i have a class were a roll dice method and a similar values method are kept and from the form in the roll button these two methods are called and the results are shown in two listboxes one for how the roll dice random numbers with duplicates is shown and the other listbox displays only the numbers without duplicates.Also another method for the graph is in the class clsNDie but it seems that i have something wrong it this area?
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Sep 21, 2009
From my app I use Excel to make a chart, from values I measure up. The chart is a xy scatter type. The chart is saved as a gif, then imported to a picturebox. how to add a trendline to the chart in Excel from .net.
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Jun 5, 2011
it is possible to enter values using vb.net and sending it to excel and displaying graphical representation of the values from excel to my vb form?
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Jun 12, 2011
I can't seem to get this code to refill the chart with new dat. The first time it executes, all is great, but when I change the year(numericupdown1.value) it adds a new set of data points instead of re-plotting the original set.
Private Sub FillChart()
'
'Fill Chart subroutine
'
Dim SoldMonth As Date
[code]....
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Jan 7, 2010
I am able to place a single series of chart data with my code but I cannot for the life of me figure out how to add a second series. I can add the Series ... I can Select the series but cannot with out errors figure out how to put data the the series' that I am creating ...
Ol' Mitch
xlApp.ActiveChart.SeriesCollection(1).Values = Rng1 <-- Error
xlApp.ActiveChart.SeriesCollection(2).Values = Rng2 <-- Error
[Code].....
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Jun 3, 2010
i have an excel template and there was a chart there, I was confuse on how can I call that chart when I'm coding in vb.net.. how can I call the chart for me to set the new value to fill the chart..
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Mar 16, 2010
Excel Chart SetSourceData abnormality?
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Jul 13, 2010
How to export chart from visual basic to excel sheet
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Dec 7, 2005
I am trying to retrieve an excel chart (created out of .net), which i have earlier copied to the clipboard.As long as I work with type bitmap I can copy/retrieve it as follows:
Code:' copy to clipboard (in .net)charts.CopyPicture(Office.XlPictureAppearance.xlScreen, Office.XlCopyPictureFormat.xlBitmap)
' retrieve it againimgImage=Clipboard.GetDataObject.GetData(DataFormats.Bitmap)
Unfortunately, the quality of the bitmap is rather bad, thus I would like to copy it as a Metafile. The copying works, but the retrieving will only return Nothing.
Code:' copy to clipboard (in .net)charts.CopyPicture(Office.XlPictureAppearance.xlScreen, Office.XlCopyPictureFormat.xlPicture)
' retrieve it againimgImage=Clipboard.GetDataObject.GetData(DataFormats.MetaFilePict) ' returns Nothing!
I have checked if the object is available in the clipboard using GetDataPresent and it shows that there is a metafile available. Still, it returns nothing.On a side note: Is there a way to avoid using the clipboard? After all I am creating the charts in .NET and I need them there as well. Could I access the image of the chartobject directly?
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Oct 28, 2009
I am working on simple handover process from one mobile station to other. I got three proposed results service disruption time, network entry time, connection set up time. I also have the result of these three as by using some conventional way and got improved these three delay results by proposed way.
Results are store in textboxes. Now i want to show graphically. E.g. I want to show conventional service disruption time on x axis and proposed service disruption time on y axis or vice versa. Let suppose I want to have a scale on axes from 1 to 3000 milliseconds. Then I want to show how purposed scheme is better. I am using VB.Net 2008
[Code]...
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Oct 28, 2009
I am working on simple handover process from one mobile station to other. I got three proposed results service disruption time, network entry time, connection set up time. I also have the result of these three as by using some conventional way and got improved these three delay results by proposed way. Results are store in textboxes. Now i want to show graphically. E.g. I want to show conventional service disruption time on x axis and proposed service disruption time on y axis or vice versa. Let suppose I want to have a scale on axes from 1 to 3000 milliseconds. Then I want to show how purposed scheme is better. I am using VB.Net 2008.I have created chart. I also studied MS chart for windows forms samples environment. Also applied different chart properties like titles, series and others, But I am not able to make x and y axes scales. How to get values on the axes and how to generate graph? [code]
A chart element with the name '0' could not be found in the 'ChartAreaCollection'.i also tried using ChartAreas(Default") but i am getting same idea.I don't get what for this chartAreas value in parenthesis is used.
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Jun 9, 2009
I have a program that is supposed to display a line chart of some values Im reading in from an XML sheet. The function that reads the data into arrays works fine. When I try to graph the values, all I get is a flat line.
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Mar 9, 2012
I'm trying to show a few values in my chart in horizontal style. I don't know where to start. I want to chart look like this:
Val1 ||||||||||
val2 ||||||
Val3 |||||||||||||
Val4 ||||||||||
I don't want to loose five hours to study chart control i need just that small graph. But I'm confused about legends,annotations, title, i don't know what is what
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May 17, 2012
I have an excel data and able to draw an pie chart from vb.net.
I should be able to add the data table below the pie chart from vb.net
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May 24, 2012
I am trying to sort out how to save or export a excel chart to a jpg image. this is what I have so far, but is obviously not working.
Private Sub ButtonJPG_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonJPG.Click
' Export chart as picture file
[Code]....
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Jun 23, 2011
How do I link data in an Excel spreadsheet to a chart object in Visual Basic 2010? Really basic here, I just want to draw a single simple line chart from a single column of data. Is it easier just to read the data into an array (which I can do) and somehow get it into the chart?
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Sep 29, 2011
So I created a loop that collects data from the user that runs for a time dictated by the user. It then stores all the data in excel and outputs a graph.The problem I am having is that I cant seem to figure out a way to set the range of the graph for the points taken.since it runs on a loop i have i = i + 1.where the the output into the excel file sequentially writes to the next cell [code]which doesnt seem to work like I would have hoped.Also, there is one other thing that my program keeps doing that I cant seem to figure out.One of the outputs to the excel file is decimal number, it shows perfectly in the textbox, but when I export it to excel it rounds it to the nearest whole number.[code]
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Dec 1, 2011
I have a program that creates a excel spreadsheet and a chart on each tab from extracted data in various .txt files. Before the chart is created, two of the excel columns will end up with data like this: on column 9 and 10. I also use data (time, looks like 09:15) in column 11 that shows the time at the bottom of the chart. There are just too many digits in the output and the readability looks bad so I can also convert.
Input Output
800400047320000
825400047120000
[code]....
The chart will display those values just fine but, normally the conversion in code that I do during the placement of that data (so it reads a bit better) looks like this:
'Convert bit to Kbit
If InRate.Length < 7 Then
InRate = CDbl(InRate) / 1000 & " Kbit"
[code]....
how to make the chart work with just numbers and ignore the MB or Kbit at the end?
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Oct 30, 2010
I have an excel file that analizes the info on a SQL database. we have generated a few charts and now I want to be able to display them on a form in VB 2010I searched the web for info but the solutions I've found do not work and my guess is because they are for earlier versions of VB.I have been able to read or even write to the worksheet using this but on the graphvb.net
Dim oExcel As Object = CreateObject("Excel.Application")
Dim oBook As Object = oExcel.Workbooks.Open("C: est.xlsx")
Dim oSheet As Object = oBook.Worksheets(1)
[code]....
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Mar 7, 2011
How to set up a Chart using the new MS Chart control. I want to be able to populate the data via SQL because the user will be able to dynamically change the values via drop downs. The format of the data will be the same (Qty, Time Period) but the Focus of that data will change. I'm honestly not sure where to start, I can draw the chart but I have no idea how to populate it with data via code so it can be changed dynamically.
VBE 2010, and I'm hitting an AccessDB
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Jun 27, 2012
What is the cleanest, most readable way to String.Format a decimal with the following criteria
start with a sign symbol (+ or -)
a fixed number of fraction digits
no decimal separator
right aligned
pre-padded with "0"'s
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Nov 14, 2009
Is it possible to add Excel Custom Chart Type names to a list box at run time? That is, Microsoft.Office.Interop.Excel.Chart.XLChartType values to a list box?
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Mar 11, 2009
How do I access the new attributes of Excel 2007 chart objects from VBA code such as setting the line gradient on a data series?
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