I have a .net Chart Control working beautifully in IE, but when I test it in Firefox, the chart initially does not show up. I do a shift+reload and it then does show up (?)
1) I have the .net Chart Control set to run in memory in the web.config:
<add key="ChartImageHandler" value=storage=memory; deleteAfterServicing=true;"/>
2) I also have the pages set to HttpCacheability.NoCache.
I can't figure out how to get the legend to populate all the "strReason" and get the correct percents to show for each column. This is where I'm at right now.
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Here's a nice one for a Pro to bite into I have a web form that generates a set of reports including asp chart controls. Clicking on the black title loads the report section into the ajax enabled panel below it. Beautiful! Two Problems though: Sometimes, when the ajax is loading the next report section, all the other charts on the page flicker and sometimes even show a red x (the image disappears). They can then reappear again when another chart loads! 2nd Problem: If I use the html-to-pdf converter, I tell all the panels to bind to the data source (they are repeaters) on page load and show content. I Then convert the resulting datastream to PDF. All the other images on the page load, but the ones for the charts don't. I have
looked at the generated code, and they are all linked fine to the correct address of the site and the chart generator url. A sample image of the working page is below:
Example Page
Example PDF
Page PDF is generated from
I have a MS Chart Control and I'm trying to serialize the chart to view state. When teh page postbacks, I wnat to de-serialize the chart from ViewState, then load it back to the Chart's serializer. When the Chart1.Serializer.Load is called, I get an error message stating Data at the root level is invalid, line 1 position 1.
So here's what I have:
Chart1.Serializer.Format = System.Web.UI.DataVisualization.Charting.SerializationFormat.Binary;
Chart1.Serializer.Content = System.Web.UI.DataVisualization.Charting.SerializationContents.All;
Chart1.Serializer.Save(myStream);
ViewState["myStream"] = myStream.ToArray();
On postback, when the routine is called:
System.Byte [] byters;
System.IO.MemoryStream myStream = new System.IO.MemoryStream();
if (ViewState["myStream"] != null)
{
byters = (System.Byte[])ViewState["myStream"];
myStream.Write(byters,0,byters.Length);
myStream.Position = 0;
Chart1.Serializer.Load(myStream); // this line throws a XmlException - data at the root level is invalid. line 1 , position 1.
}
The length of the stream was 15,518 and capacity was 16,384 when it made the save. On postback, both capacity and length became 15,518.
I have an issue in using dot net chart control. In chart last column is not completely shown which give bad appearance and on right side of chart it looks like TickMark are enabled. I set MajorTickMark of AxisY2 disabled but still tick marks on right side.
View 2 Replieshow to freeze the x axis of the chart control in ms chart? need to use because data displayed at large amount that is scrollable.
View 1 RepliesAm I going mad/blind? Probably a combination of the two.
How does one go about removing the data labels from a pie chart with the new chart control in .net 4?
I can get these to display as tooltips absolutely fine, but ultiamtely I'd like the labels not to be present as it looks rather busy.
I've searched previous answers and seen code behind resolutions but surely there must be some sort of code infront option to turn these labels off?
I am using MS Chart control (3.5), and have a requirement where I need to display 2 pie charts. The datapoints for the pie charts is set programatically. My doubts are as follows:
1. Can I display both the pie charts in a single chart control and area, or do I have to use two controls? (Currently I am using two controls)
2. How can I maintain the same size for both the pie charts? This is my main concern, since the pie sizes keep changing, depending on the number of datapoints. I tried using custom properties like "MinimumRelativePieSize", but it's not working.
i'm trying to create a stacked bar chart on a vb web form using vs2010.My data source returns:
Error in Functionality Awaiting on Supplier
1IMT IssuesmActive6
IMT Issues,Awaiting on Supplier
2,IMT Issues,Awaiting on User 4
IMT Issues Closed 120
Login / Password Active
But I can't get this into a stacked chart. I know I must have to do quite a bit of work declaring what the series are and soforth, or having a different dataset but can't find any documentation on it.A link to some documentation or an example of a stacked chart from an sql datasource would be much appreciated.
I started using the awesome chart controls with my asp.net apps recently and so far they've been nothing short of breath taking. Right now I have a weird problem, on the first load of my page, the chart control appears correctly and the tooltip is correct, however, when I update it with new data, the chart displays correctly, but the tooltips are for the previous set of data.
I hope this makes sense. The first time I load the chart, the pie chart segments and tooltips are correct, after a partial postback (to get the new data), the pie chart segments are correct but the tooltips are for the previous data set.
Basically once the tooltips are set the first time, they can't be updated after that without a full page postback.
Here's how I set the tooltip:
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Anyone else noticed this behaviour and have a work around?
Currently my only workaround is to check for a partial postback and not render the tooltip, which I'd rather not do as the tooltip display actual statistical data as opposed to the pie itself (which uses percentages).
The following flash does not initially load in firefox, but if I click the second tab on the right, and then go back to the first, it loads. This works in Chrome and IE. Here is the webpage.
View 3 RepliesI want to show a grid view Control that is initially displayed to allow the user to enter multiple records. This grid view will not be tied to a database nor will it need to save the data that is enter into the GridView Control directly to a database.
View 3 RepliesI've got this problem.I launched an ASP.NET website with the Umbraco CMS on an ISP.(Its just a very basic informative site. nothing special.)When I go want to visit the website however, the first pageload takes a lot of time, sometimes even up to 20 seconds. Of course this is ridiculous. Afterwards, I am able to navigate the site relatively quick.. So every first pageload is slow, then everything is OK, more or less.Does anybody have any idea what the problem could be? Would it be IIS? ASP.NET?
View 5 RepliesIf I place a DevExpress ASPxComboBox or ASPxTextBox within a JQueryUI tabs widget, any data that is within a DevExpress control that is not on the initally active tab does not get displayed, although the DevExpress controls themselves are (they are just blank). Removing the tabs functionality for testing (by not calling the JQuery, the html structure remains identical) results in the DevExpress controls working fine.
View 2 Repliesusing the control in web application.
View 1 RepliesIs there a way to add a legend to the chart it creates? I have created a line chart and by default it has created different colors for the different y - axis data.
I would like a legend on the side that displays what data goes with which line color.
I'm using MS Chart Controls, i want to add a feature to my charts, im primarily using Bar charts. I will have a large numnber of Data points on my chart for example 20 bars etc, i want to limit the display to 10 so if there is more than 10 it will only show the last 10 bars and display a scrolling bar to scroll back and fort to see all the charts. I have the code to do this, and it works extremely well, only problem is. the code is in VB.NET I've converted it to C# and I am not getting any errors on page_load but my code doesnt seem to affect my chart in anyway, basically it doesnt work. Just wondering could some one have a look at my code and give me any pointers where i may have gone wrong or if anyone has ever got something similair to this working in c#. Im going to post both the VB.NET and the C#,
VB CODE
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C#
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I am using a Chart Control, and I have 2 series. In my case 1 for month and 1 for year. The problem is when the chart control is displayed during run time for some reason the legend has 4 entries 1 says Mont, 1 says Year, 1 says Series 1, and 1 says series 2. My question is why are there 4 entries for the legend?
View 5 RepliesI am using the Chart control unbound and binding data to it at run time. It is a bar chart. When it is displayed after applying the data the X axis is drawn vertically and the y axis is drawn horizontally. I want the opposite but cannot find how to change the orientation.
View 6 RepliesI have a Bar Chart being driven by the user search criteria. Is it possible to make it so they can click on the bars, or label of bar, and have it taken them to another page to see more details?
View 1 RepliesI have a drop downlist,and next to it there is an MS bar chart.i want to change the datate of the MS chart ,once the user selects another year from the dropdownlist.
When the page loads ,the chart displays the default year(2011) and it works.The problem is that is does not change the data when you select another year from the dropdownlist.
I am working with a chart control and on the Y axis i have numbers that fall between millions and billions.
The numbers on the axis themselves are not formatted and as such can be difficult to read. I wanted to know if there was a way for me to format the value that appears on the axis itself to be coma seperated?
here's what the Y axis looks like
600000000
300000000
100000000
numbers are just hard to read. How do i format them with coma's or even add a label saying (Millions) and then displaying only 100, 300, 600 etc
I have a DevExpress WebChart Control that binds to a DataTable. The chart control renders fine from the DataTable until I try to import data from a details view(i think the chart control renders before the detailsview?).
Here is three renderings.
Chart 1. just rendering from the datatable
Chart 2 The sqldatasource gets its para. from the values of two label controls to render the detailsview. The detailsview renders fine
Chart 3, the problem comes in when I try to extract the values from the DetailsView to populate the Chart, I loose the value. I am assuming the the datatable is built before the rendering of the detailsview? Lost at this point.
ASPx Code with SQLDataSource1, 2, 3
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VB Code Behind
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I have a .net3.5 mschart control bound to a data table displaying a line graph. I wigh to zoom in on an axis on an asp.net web form.
View 1 RepliesIm building an investment illustration which takes a users initial investment of say £1000 then an investment term of say 10 years. I then do some calcultations on the server and return a datatable something like the following;
YEAR_NO - RETURN_AMOUNT
0 1000
1 1098.11
... ...
... ...
9 2319.70
10 2547.45
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My 'Y' axis is the monetary and 'X' is the term, the problem i have is the line starts to draw from year 1 instead of flush up against the 'Y' axis at year 0 & £1000.