dotnettex

Hello again, Getting this issue on your latest ChartFX 7 .NET web tool. I have an application that charts calulation results and outputs an image to the browser page. Initially, the chart is bound to a datatable of values (using the data table provider). When the user changes the values, and selects ReCalc, the calculations are performed and the chart is then reset, and bound to the table with the new values. So far, this has been working great. The issue is when a user chooses to change the chart (show toolbar, show grid, etc), the chart will revert back to it's initial image (values) when the chart was initially composed. I tried setting the EnableViewState to TRUE, but it had no effect. This application uses AJAX for a lot of it's postbacks (including the ReCalc). Is there a way to stop this?

Greetings! I have to compose a seperate PRINT page for a web application I am writting. I need to grab the same chart as shown on the browser (screen) page, and place it on the PRINT page. I can see the image SRC URL (for the chart) in the browsers HTML, but is there a way to get it's path in code? Generated HTML path: src="/chartfx70/pss/ChartFX.aspx?id=0-123009401&type=png&mime=image%2fpng" Thanks!! Brian

If it helps: I am using VS 2008 to create a ASP.NET 3.5 application. Also using AjaxControlToolkit for 3.5 framework. I've noticed (also) that the HTML generated by the ChartFX designer is not as consistant, or as reliable, as it is using VS 2005 / ASP.NET 2.0. Have you guys had a chance to fully test the VS2008 environment (in addition to .NET 3.5 framework)? I guess until then we will just disable the client side grid on the chart. Thanks! Brian

May I assume that your silence suggests a bug?

1) When you click the scrollbar, an AsyncPostback will occur.Are you setting data or any other attributes in the chart when this call occurs? your page code will execute just the same as in a PostBack. Please debug and check whether you are resetting the chart to its original state. Yes - I am checking for postback and NOT resetting the chart when it occurs. The chart is inside an UpdatePanel with the triggering controls (CheckBoxes) outside. Here is the HTML for the chart section: <!-- BEGIN CHART --><td class="estChartArea" colspan="2" style="width: 665px" rowspan="34"> <asp:UpdatePanel ID="updChartPanel" runat="server" ChildrenAsTriggers="false" UpdateMode="Conditional"> <ContentTemplate> <chartfx7:Chart ID="cfxMain" runat="server" Height="640" Width="660"> <Series> <chartfx7:SeriesAttributes /> <chartfx7:SeriesAttributes /> <chartfx7:SeriesAttributes /> </Series> <LegendBox Dock="Bottom" ContentLayout="Center" /> </chartfx7:Chart> </ContentTemplate> <Triggers> <asp:AsyncPostBackTrigger ControlID="chkGasPlot" EventName="CheckedChanged" /> <asp:AsyncPostBackTrigger ControlID="chkOilPlot" EventName="CheckedChanged" /> <asp:AsyncPostBackTrigger ControlID="chkWaterPlot" EventName="CheckedChanged" /> <asp:AsyncPostBackTrigger ControlID="chkGORPlot" EventName="CheckedChanged" /> <asp:AsyncPostBackTrigger ControlID="chkLGRPlot" EventName="CheckedChanged" /> </Triggers> </asp:UpdatePanel></td><!-- END CHART --> Here is the code behind that is only called when the page is first called: dt = ef.GetWellProduction(this.WellNumber, true, true); //ObjectSerializer.SerializeToFile(string.Format("C:\\Temp\\ProdData_{0}.xml", this.WellName.Replace(" ", "")), dt); // Map fields this.cfxMain.DataSourceSettings.Fields.Add(new FieldMap("PROD_DATE", FieldUsage.XValue)); this.cfxMain.DataSourceSettings.Fields.Add(new FieldMap("OIL", FieldUsage.Value)); this.cfxMain.DataSourceSettings.Fields.Add(new FieldMap("GAS", FieldUsage.Value)); this.cfxMain.DataSourceSettings.Fields.Add(new FieldMap("WATER", FieldUsage.Value)); this.cfxMain.DataSourceSettings.Fields.Add(new FieldMap("GOR", FieldUsage.Value)); this.cfxMain.DataSourceSettings.Fields.Add(new FieldMap("LGR", FieldUsage.Value)); this.cfxMain.DataSourceSettings.DataSource = new ChartFX.WebForms.DataProviders.DataTableProvider(dt); // Remove markers & set foreground / border color this.cfxMain.Gallery = Gallery.Lines; this.cfxMain.AllSeries.MarkerShape = MarkerShape.None; this.cfxMain.ForeColor = System.Drawing.Color.Gray; this.cfxMain.Border = new ChartFX.WebForms.Adornments.SimpleBorder(ChartFX.WebForms.Adornments.SimpleBorderType.Color, System.Drawing.Color.Gray); // Set Grid and Legend defaults this.cfxMain.DataGrid.Visible = true; this.cfxMain.LegendBox.Visible = false; this.cfxMain.RenderFormat = "Image"; // Create Chart Title TitleDockable title = new TitleDockable(this.WellName); title.Dock = DockArea.Top; title.Font = new System.Drawing.Font("Arial", 14); title.TextColor = System.Drawing.Color.Black; this.cfxMain.Titles.Add(title); title = new TitleDockable("( " + _wrk.WorkoverHeader.WellInfo.CompletionInfo.Replace("; ", " / ") + " )"); title.Dock = DockArea.Top; title.Font = new System.Drawing.Font("Arial", 8); this.cfxMain.Titles.Add(title); // Setup X axis this.cfxMain.AxisX.Title.Text = "TIMESPAN"; this.cfxMain.AxisX.Title.Font = new System.Drawing.Font("Arial", 10, System.Drawing.FontStyle.Bold); this.cfxMain.AxisX.Title.TextColor = System.Drawing.Color.Black; this.cfxMain.AxisX.LabelsFormat.Format = AxisFormat.Date; this.cfxMain.AxisX.LabelAngle = 45; // Setup Y axis this.cfxMain.AxisY.Title.Text = "MCFPD@14.65pb"; this.cfxMain.AxisY.Title.Font = new System.Drawing.Font("Arial", 10, System.Drawing.FontStyle.Bold); this.cfxMain.AxisY.Title.TextColor = System.Drawing.Color.Black; this.cfxMain.AxisY.LabelsFormat.Format = AxisFormat.Number; this.cfxMain.AxisY.LogBase = 10; this.cfxMain.AxisY.Min = 0; this.cfxMain.AxisY.Max = 1000000; // Setup Y2 axis this.cfxMain.AxisY2.Title.Text = "BPD"; this.cfxMain.AxisY2.Title.Font = new System.Drawing.Font("Arial", 10, System.Drawing.FontStyle.Bold); this.cfxMain.AxisY2.Title.TextColor = System.Drawing.Color.Black; this.cfxMain.AxisY2.LabelsFormat.Format = AxisFormat.Number; this.cfxMain.AxisY2.LogBase = 10; this.cfxMain.AxisY2.Min = 0; this.cfxMain.AxisY2.Max = 100; // Connect oil / water / GOR series to Y axis this.cfxMain.Series[0].AxisY = this.cfxMain.AxisY2; // Oil this.cfxMain.Series[2].AxisY = this.cfxMain.AxisY2; // Water this.cfxMain.Series[4].AxisY = this.cfxMain.AxisY2; // Initial axis for LGR // Assign series colors this.cfxMain.Series[0].Color = System.Drawing.Color.Green; // Oil this.cfxMain.Series[1].Color = System.Drawing.Color.Red; // Gas this.cfxMain.Series[2].Color = System.Drawing.Color.Blue; // Water this.cfxMain.Series[3].Color = System.Drawing.Color.Cyan; // GOR this.cfxMain.Series[4].Color = System.Drawing.Color.DarkCyan; // LGR SetGraphPlots(); The checkboxes will also call the SetGraphPlots() method whenever their OnCheckChange event is raised: // Set visible series this.cfxMain.Series[0].Visible = this.chkOilPlot.Checked; // Oil this.cfxMain.Series[1].Visible = this.chkGasPlot.Checked; // Gas this.cfxMain.Series[2].Visible = this.chkWaterPlot.Checked; // Water this.cfxMain.Series[3].Visible = this.chkGORPlot.Checked; // GOR this.cfxMain.Series[4].Visible = this.chkLGRPlot.Checked; // LGR this.cfxMain.RecalculateScale(); As stated earlier, the method which initially sets up the chart (above) is NOT called on subsequent postbacks. THANKS!!! Brian

Greetings, All! I am using ChartFX7 (VS2008) to render a chart image for a web application. I am running into an issue and need your assistance. I have an application which needs to chart 5 values. The X axis is the date of each value, and the Y and Y2 axis plot the values on a log scaled chart. For sake of simplicity, lets call these value columns A, B, C, D, and E. Initially, I create a FieldMap for each of the DataTable columns (A - E), then tie the DataTable to the chart's DataSource via the DataTableProvider. Since all the values are initially (automattically) tied to the Y axis, I need to re-assign 3 of them to the Y2 axis (B, D, and E). On my web page, I have 5 chack boxes (representing the 5 columns) with 3 initially checked (A, B, and C). I have a method which reads the checked state of each of the 5 checkboxes and sets each of the 5 series lines visable accordingly (i.e. this.chart1.Series[0].Visible = this.chkBox1.Checked) This method is fired (via Ajax AsyncPostBack) using each of the checkboxes 'CheckChanged' event. This works great except for a single issue. I have the grid below the chart showing by default. If you try to scroll or page the grid (using scrollbar), any series line which was not initially visible dissappears from the chart, along with it's associated grid row. For example: Lines A, B, and C are initially shown when the page is first loaded. If I check D or E (or both), a postback is made and a newly composed chart now shows the additional lines. If I go to scroll the grid below the chart, any additional lines dissappear ( along with their associated grid rows) with ony the original 3 remaining (A, B, and C). Is this a bug or am I doing something wrong? I tried playing with the viewstate, to no avail. Thanks! Brian