Create Pie Chart From Distinct Records From Sql Server?
May 10, 2012
want to create pie chart which show me number of records(in %) in databse of perticular item i don't know how many distinct records and their name.I just wants to fire a query which scan database for distinct record name & how many time that record is in database.First time it find A,B,C,D are distinct record then it count how many time A,B,C,D record are found in database according those number it will able to create pie chart which will shows the number occerances of pericular item in
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Mar 14, 2012
I am building a custom search control in VB.NET and came across a problem getting distinct records into my datagridview. I want to bring exact matches back first so I run 2 of the same query on the same table with a slight difference:
select ... like "code%"
select ... like "%code%"
I have a datatable that I need to get distinct records from; I am append records from a sql query to the end of the datatable so I cannot use a union in sql to return the dataset (I want to preserve the order which the rows are added) I have been using this which is working fine for 2 fields:
dt2 = dt.DefaultView.ToTable(True, "Code", "Name")
But when I have 3 (or more) fields I get duplicates ONLY for the row I am querying:
dt2 = dt.DefaultView.ToTable(True, "Code", "Name", "Initial")
select ... like "initial%"
select ... like "%intial%"
I am clearing the datagridview.source before rebuilding this. Is there a way to get the distinct rows this way or should I just build something myself to remove the duplicates from the second datatable before appending them to the new table?
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May 18, 2010
Currently working on a project to automate the input based on the Summary file (xls format)
1. I want to be able to do the following: update, append, delete and populate the records to the various files based on two distinct fields, column A & F (see attached file).
2. Researched the process, requires knowing VB codes, are you familiar with this language? If so, how can I simplify the process? Please advise.
3. The files will reside on the SPP.
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Apr 21, 2010
Got a chart control i wanna make from a data table. the table looks like this:
the chart i want will look like this:
'''
''''
[code].....
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Jul 13, 2010
I am trying to distinct on multiple columns and get datarows from datatable. but getting error.
Dim query As IEnumerable(Of DataRow) =
(From row As DataRow In SourceTable.AsEnumerable() _
Select row.Field(Of String)("ColumnName1"),
[Code]....
I want another datatable with distinct row based on given columns from SourceTable.
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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 14, 2011
I converted a 3.5 website to a 4.0 website. The site was using the 3.5 Microsoft Chart add-on. In VS 2010, when I build the site, I get the above error. The Chart control is in the tool box, and if I drag and drop it it creates the markup for a chart, but on build it it has no clue what it is.
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Aug 6, 2010
I want to create a chart pie as a graphic file (gif / jpeg) in run time , based on data that the app provides.
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Sep 6, 2011
I've got a working chart (ASP.NET/VB.NET), over some selected periods of time it has no data, this is expected. When I select a period of time where there is no data I get no chart displayed, just a rectangle of the background colour of the chart.
What I want is to still display the titles, x and y axes etc when there is no data, just an empty chart.
I toyed with the idea of adding a data point outside the time scale of the chart and this worked, I then got an empty graph, but there must be a cleaner way to achieve this.
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Apr 18, 2011
how to create a chart with specific row only from datagrid in vb.net?
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Feb 26, 2010
in problem, the organization view should be on vb.net form in chart every main node have three roots for six times it would just like 1->3->9->27->81->243->729
[Code]......
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Aug 29, 2009
I need to display a line chart which i retrieve data from the database in Visual Basic 2005.How to create a line chart in Visual Basic 2005? is it possible? if possible, can anyone teach me how to create.
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Dec 27, 2010
I want a hit or a Source Code or any Reference using that i can easily create a pie chart.
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Mar 26, 2009
I am working in Windows applications. I want to create a Chart for showing results as user friendly. How to create chart in VB.NET or C#.NET for Windows Applications.
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Mar 28, 2009
I am doing Windows applications in VB.NET 2005. I want to use chart in my project. I already asked this question in this site. But viewers said the solution to use "MSChartControl" (but this is for Visual Studio 2008.).
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Jan 5, 2010
I'm trying to build a chart in a windows form using Visual Studio 2008 Express, I've found a couple of tutorials but they say to add a component I don't seem to have... is this a limitation with the express edition?
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Jul 29, 2009
I'm trying to make a very simple chart.[code]...
So the whole pie would represent the 1000 task and the 2 slices would represent the finished and unfinished task. How can i programmatically create this?
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May 18, 2009
I have a program written in VB6/VB.net and its supposed to calculate a set of numbers based on user input. From there the data is saved into an xml file. I want to be able to take the data from the xml file and draw a chart representing all the data. I found a tutorial that draws line graphs based on an predetermined array of data, but I need the program to take the data from an xml file.
Heres the code for the line drawing program:
Option Strict On
Imports System.Drawing.Drawing2D
Public Class ViewChart
[Code]....
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Mar 13, 2011
I am looking at trying to make a chart from my data I am retriving form a 3rd part textfile datafile
I am reading on report viewer, but so far everything i see references using an exisitng database, my database will be created at run time
I create datatables uisng OleDb connection and bindingsources to comboboxes and textboxes for display of data
I just need a simple x/y scattered chart/graph
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Jul 29, 2010
I am trying to create an X-Y Scatter chart from VB and it just refuses to come out right. I have two columns of data, with headers. If I manually grab say A1 to B100, Insert chart, X-Y scatter with straight lines, it works fine. Basically, column A is Elapsed Time, and B is data. So it plots B on the graph and the X-axis is the elapsed time, one series.If I automate from VB, I can't get the same affect. Either I get two series or the X-axis is just numbers 1 to n When I highlight the series in Excel, this is what the formula bar says when it's correct:
=SERIES(Sheet1!$B$1,Sheet1!$A$2:$A$100,Sheet1!$B$2:$B$100,1)
When it's close, but wrong:
=SERIES(Sheet1!$B$1,,Sheet1!$B$2:$B$100,1) close, need A range between commas
I've tried two methods:
xlRange = xlWorkSheet.Range("B1")
xlRange = xlRange.Resize(ArraySize + 1, 1)
xlChart = xlWorkBook.Charts.Add()
[code]....
I just can't seem to get it right!
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Mar 21, 2012
I am using visual studio 2010 to create a VB reporting website. I found a blog which tells me how to use range bar chart to create a gantt chart. But I got some problems with how to group the bars(tasks) on task names.
My database structrue is shown below:
Taskname StartTime EndTime
task1 2012-03-01 8:00 2012-03-01 10:00
task2 2012-03-01 9:00 2012-03-01 14:00
task1 2012-03-01 17:00 2012-03-01 18:00
task2 2012-03-03 18:00 2012-03-03 19:30
I would like use the above data to generate a gantt chart like this:
task1 task1
----- ---
task 2 task 2
------------------------- -------
In visual studio's report designer, I first added a range bar chart. Then dropped the taskname filed to the category fileds. So my understanding is the range bars will be grouped by task name. For the data fields, I dropped starttime(start value) and endtime(top value). I also set the 'draw side by side' property to false. But when I run my website, I could only see one task for each task type in the gantt chart( one task1 and one task 2) . It didn't show me all the tasks. So my incorrect result is shown below:
task1
------
task 2
-------------------------
No matter how many records are there in my database, the gantt chart only shows the first record for each task type.
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Apr 16, 2011
How to make query from mutiple datagrid so that the data from datagrid will create chart?
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Sep 1, 2009
Is it possible to create an organizational chart with the treeview and if so how?
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Nov 15, 2011
I have to create a cafeteria survey application. Twenty students were asked to reate, on a scale of 1 to 10, the quality of the food in the student cafeteria, with 1 being "awful" and 10 being "excellent." Allow the user input to be entered using a ComboBox. Use an integer array to store the frequency of each rating. Display the frequencies as a bar chart in a list box.
I can get the comboBox and everthing, but it's not displaying the bar chart.
Here is my code.
Public Class Form1
'String array stores ratings
Dim ratings() As String = {"1-Awful", "2", "3", "4", "5", "6", "7", "8", "9", "10-Excellent"}
Dim studentCount As Integer 'number of student ratings entered
Dim frequency(9) As Integer
[CODE]...............................
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May 12, 2012
I am trying to build a function that returns a chart. I want to have a parameter to account for times where i may need more than one series. How does one loop through to create multiple series? I would think you would need a variable for each series. The function is below. I would think that if there were 5 series that each of the "Dataseries" variables should have their own name. Do I then refer to them by index only?
[Code]...
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Jan 15, 2009
I am trying to build a function that returns a chart. I want to have a parameter toaccount for times where i may need more than one series. How does one loop through to createmultiple series? I would think you would need a variable for each series. The function is below. I would think that if there were 5 series that each of the "Dataseries" variables should have their own name. Do I then refer to them by index only? Public Shared Function MakeChart(ByVal form As Form, Optional ByVal numseries As Integer = 0) As Chart
' Add any initialization after the InitializeComponent() call.
Dim SampleChart As Chart = New Chart()
Dim MainChartArea As ChartArea = New ChartArea()
[code].....
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Jun 1, 2011
How can I get a new distinct list from an existing list using LINQ? This is what I have so far and it is not distinct but does give me a new list.
Dim tmpQryColumn = (From a In _allAudits
Select New CheckBoxListItem
With {.Id = a.AuditColumn, .Name = a.AuditColumn}
).Distinct()
_columnList = New List(Of CheckBoxListItem)(tmpQryColumn)
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Mar 12, 2010
How can I get a new distinct list from an existing list using LINQ? This is what I have so far and it is not distinct but does give me a new list.
Dim tmpQryColumn = (From a In _allAudits
Select New CheckBoxListItem
With {.Id = a.AuditColumn, .Name = a.AuditColumn}
[code]......
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Apr 8, 2012
I'm working in VS2010 on a visual basic application. It takes in serial port data, writes it to an access database, and then graphs the data.The data only comes in once every minute, so it's not like I'm building an oscilloscope. Right now, the chart is reading from the database using a table adapter and graphing just fine, so long as I keep the number of records in the database low.If I add too many records to the database, the chart shows a red "X" through it. I've played with changing the axes, but it is still a problem.I don't really need to graph the whole database.The twenty most recent records would suffice.How can I make a chart series with only a small subset of the database in it.Perhaps it cold be populated with a query?
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Sep 17, 2010
Is it possible to create and view an Excel 2007 line chart in a form in VB 2008?My VB program has a listview control in details view like a spreadsheet. Currently I have this data exported into a csv file which I copy into an xlsx file where I have created a few line charts based on the data.
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