binqing

We are developing a window form application under VS2010 using ChartFX Client Server Control, and experienced some problem with the ChartFX Client Server Control. After the project is set up, add the ChartFX Client Server Control (cfx4032.ocx) to the reference of this project, and then add this control to the ToolBox, while we drag this control to the window form, we get the following error message "Failed to import the ActiveX control. Please ensure it is properly registered." At the same time we can see a warning icon in front of the "AxChartfxLib" under the "Reference" folder in the 'Solution Explorer" window. It seems that the ChartFX Client Server Control is not properly registered, so we specifically unregister and re-registered the ChartFX Client Server Control (cfx4032.ocx) one more time using the regsvr32. After this re-registration, we try again, but the problem still persists. So would you give some suggestion or tip of how to solve this problem? Thanks in advance.

Frank I finally found the culprit! By default, ForceZero property is set to be true for all the Y axis, so if you want to set the min of the axis_Y to be a non-zero value you need to specifically reset the ForceZero property to be false and then the value you want it to be can show up. For example, this .myChart.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y2].ForceZero = false;But my question about Zoom and Step is still there. If I want to plot time on Axis_X at 15 minute interval, how should I set the Step and MinorStep? I plot two groups of data on Axis_Y and Axis_Y2 separately. When I use the zoom tool, it only affect the data in Axis_Y, and the data on Axis_Y2 remain unaffected. How can I handle this? Thanks.

Hi, Frank this is the continuation of the previous question in post: http://community.softwarefx.com/forums/p/8774/20477.aspx#20477 Frank,I did try again, and it seems I do need some extra help for this. I am still using ChartFX 5.1 - the oldest version. I did not find any property, like Near or Far, to realign the text of the title of these two constant lines. So it this property available in ChartFX 5.1 or not.The following is the code for plotting the graph. I put all my questions in the inline comments, making it easier for you to read. After the data is plotted, I see the zoom tool only affect the data on Axis_Y, but the data on Axis_Y2 do not change at all. How can I make the data on Axis_Y2 also have conparative changes? ----------------------------------------------------------------------- private void DisplayChart(Array selectedDam) {string damName = ""; double crest = 0.0;double spillway = 0.0; double[,] outFlow;damName = "Adobe Dam"; crest = 1405.5 ;spillway = 1400.5; outFlow = GetOutFlow(selectedDam); InitChart(damName); SetAxis(outFlow, crest); DrawOutFlow(outFlow, crest, spillway); } private void InitChart(string damName) { string chartTitle = ""; chartTitle = "The Predicted Outflow of " + damName; //Initialization of general setting this.chartOutFlow.set_Title(ChartfxLib.CfxTitle.CHART_TOPTIT, chartTitle);//Initialization of the ConstantLine setting this.chartOutFlow.OpenDataEx(ChartfxLib.CfxCod.COD_CONSTANTS, 2, 0); //Dam Elevaltion//here I intend to plot the crest on AXIS_Y2 this.chartOutFlow.ConstantLine[0].Axis = ChartfxLib.CfxAxisIndex.AXIS_Y2; this.chartOutFlow.ConstantLine[0].Label = "Dam Elelvation"; this.chartOutFlow.ConstantLine[0].LineColor = (uint)ColorTranslator.ToOle(Color.Brown); this.chartOutFlow.ConstantLine[0].LineStyle = ChartfxLib.CfxLineStyle.CHART_SOLID; this.chartOutFlow.ConstantLine[0].LineWidth = 1; //Spillway Elevation//Here I intend to plot the spillway on AXIS_Y2 this.chartOutFlow.ConstantLine[1].Axis = ChartfxLib.CfxAxisIndex.AXIS_Y2; this.chartOutFlow.ConstantLine[1].Label = "Spillway Elevation"; this.chartOutFlow.ConstantLine[1].LineColor = (uint)ColorTranslator.ToOle(Color.DarkSlateBlue); this.chartOutFlow.ConstantLine[1].LineStyle = ChartfxLib.CfxLineStyle.CHART_SOLID; this.chartOutFlow.ConstantLine[1].LineWidth = 1;this.chartOutFlow.CloseData(ChartfxLib.CfxCod.COD_CONSTANTS); } private void SetAxis(double[,] outFlow, double crest) { int length = 0; double AxisYMin = 0.0; double AxisYMax = 0.0; double AxisY2Min = 0.0; double AxisY2Max = 0.0; double flowMax = 0.0; //this is used to set the max on AXIS_Ydouble stageMax = 0.0; DateTime begTime; DateTime endTime; length = outFlow.GetLength(0); flowMax = 1002; stageMax = 1402.5; //the Axis X is set to the starting and ending time of the selected time period. begTime = new DateTime(2008, 1, 27, 0, 0, 0); endTime = new DateTime(2008, 1, 29, 0, 0, 0); //the Axis Y is set to be the maximum out flow, and the Axis Y2 is set to be the elevation of the damAxisYMin = 0.0; AxisYMax = flowMax + 10.0; AxisY2Min = 1000.0; AxisY2Max = crest + 200.0; //the crest of the elevation of the dam, this is used to set the max on AXIS_Y2 //Initialization of the Axis object setting this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].Title = "Time Interval (minute)"; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].Format = ChartfxLib.CfxFormat.AF_TIME; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].AutoScale = true; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].Min = begTime.ToOADate(); this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].Max = endTime.ToOADate(); //this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].STEP = 5; //How can i set the step and minor step for time serial on AXIS_X?//this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].MinorStep = 1; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].Decimals = 0; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].TextColor = (uint)ColorTranslator.ToOle(Color.Blue); this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].Grid = false; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].GridWidth = 1;this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].LabelAngle = 45; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y].Title = "Predicted Outflow (cfs)"; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y].Format = ChartfxLib.CfxFormat.AF_NUMBER; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y].AutoScale = true; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y].Min = AxisYMin; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y].Max = AxisYMax; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y].Decimals = 1; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y].TextColor = (uint)ColorTranslator.ToOle(Color.Blue); this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y].Grid = true;this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y].GridWidth = 1; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y2].Title = "Crest & Spillway Elevation (ft)"; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y2].Format = ChartfxLib.CfxFormat.AF_NUMBER; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y2].AutoScale = true; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y2].Min = AxisY2Min; //I assign the min and max for the AXIS_Y2 here, but it does not affect! this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y2].Max = AxisY2Max; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y2].Decimals = 0; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y2].TextColor = (uint)ColorTranslator.ToOle(Color.Blue);this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y2].GridWidth = 1; this.chartOutFlow.OpenDataEx(ChartfxLib.CfxCod.COD_COLORS, 4, 0); this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].GridColor = (uint)ColorTranslator.ToOle(Color.Blue); this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y].GridColor = (uint)ColorTranslator.ToOle(Color.Blue); this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y2].GridColor = (uint)ColorTranslator.ToOle(Color.Blue);this.chartOutFlow.CloseData(ChartfxLib.CfxCod.COD_COLORS); } private void DrawOutFlow(double[,] outFlow, double crest, double spillway) { int count = 0; int nseries = 0;string timeLabel = ""; count = outFlow.GetLength(0); nseries = this.chartOutFlow.NSeries; //plot the crest and spillway elevations this.chartOutFlow.OpenDataEx(ChartfxLib.CfxCod.COD_CONSTANTS, 2, 0); this.chartOutFlow.ConstantLine[0].Value = crest; this.chartOutFlow.ConstantLine[1].Value = spillway; this.chartOutFlow.CloseData(ChartfxLib.CfxCod.COD_CONSTANTS); //plot the outflow datathis.chartOutFlow.OpenDataEx(ChartfxLib.CfxCod.COD_XVALUES, nseries, count); this.chartOutFlow.OpenDataEx(ChartfxLib.CfxCod.COD_VALUES, nseries, count);for (int i=0; i<count; i++) { //set the Axis X labelstimeLabel = outFlow[i, 2].ToString() + ":" + outFlow[i, 3].ToString(); this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].set_Label(i, timeLabel); //set the outflow values this.chartOutFlow.Series[0].set_Xvalue(i, i+1); this.chartOutFlow.Series[0].set_Yvalue(i, outFlow[i, 5]); //set the stage values//If I comment out the following four lines of code, that is, do not plot the stage values //the min and max of the Axis_Y2 will show right, that is, 1000 - 1400 or similar. this.chartOutFlow.Series[1].set_Xvalue(i, i+1);// I intend to plot this data in AXIS_Y2 this.chartOutFlow.Series[1].YAxis = ChartfxLib.CfxAxisIndex.AXIS_Y2;this.chartOutFlow.Series[1].set_Yvalue(i, outFlow[i, 7]); } this.chartOutFlow.CloseData(ChartfxLib.CfxCod.COD_XVALUES); this.chartOutFlow.CloseData(ChartfxLib.CfxCod.COD_VALUES);this.chartOutFlow.RecalcScale(); }

Frank In the following module, if I donot plot the stage values, the min and max of Asix_Y2 shows correctly. Does this help to find the problem? Thanks private void DrawOutFlow(double[,] outFlow, double crest, double spillway) { int count = 0; int nseries = 0;string timeLabel = ""; count = outFlow.GetLength(0); nseries = this.chartOutFlow.NSeries; //plot the crest and spillway elevations this.chartOutFlow.OpenDataEx(ChartfxLib.CfxCod.COD_CONSTANTS, 2, 0); this.chartOutFlow.ConstantLine[0].Value = crest; this.chartOutFlow.ConstantLine[1].Value = spillway; this.chartOutFlow.CloseData(ChartfxLib.CfxCod.COD_CONSTANTS); //plot the outflow datathis.chartOutFlow.OpenDataEx(ChartfxLib.CfxCod.COD_XVALUES, nseries, count); this.chartOutFlow.OpenDataEx(ChartfxLib.CfxCod.COD_VALUES, nseries, count);for (int i=0; i<count; i++) { //set the Axis X labelstimeLabel = outFlow[i, 2].ToString() + ":" + outFlow[i, 3].ToString(); this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].set_Label(i, timeLabel); //set the outflow values this.chartOutFlow.Series[0].set_Xvalue(i, i+1); this.chartOutFlow.Series[0].set_Yvalue(i, outFlow[i, 5]); //set the stage values this.chartOutFlow.Series[1].set_Xvalue(i, i+1);// I intend to plot this data in AXIS_Y2 this.chartOutFlow.Series[1].YAxis = ChartfxLib.CfxAxisIndex.AXIS_Y2;this.chartOutFlow.Series[1].set_Yvalue(i, outFlow[i, 7]); } this.chartOutFlow.CloseData(ChartfxLib.CfxCod.COD_XVALUES); this.chartOutFlow.CloseData(ChartfxLib.CfxCod.COD_VALUES);this.chartOutFlow.RecalcScale(); }

Frank, I did try again, and it seems I do need some extra help for this. I am still using ChartFX 5.1 - the oldest version. I did not find any property, like Near or Far, to realign the text of the title of these two constant lines. So it this property available in ChartFX 5.1 or not.The following is the code for plotting the graph. I put all my questions in the inline comments, making it easier for you to read. private void DisplayChart(Array selectedDam) {string damName = ""; double crest = 0.0;double spillway = 0.0; double[,] outFlow;damName = "Adobe Dam"; crest = 1405.5 ;spillway = 1400.5; outFlow = GetOutFlow(selectedDam); InitChart(damName); SetAxis(outFlow, crest); DrawOutFlow(outFlow, crest, spillway); } private void InitChart(string damName) { string chartTitle = ""; chartTitle = "The Predicted Outflow of " + damName; //Initialization of general setting this.chartOutFlow.set_Title(ChartfxLib.CfxTitle.CHART_TOPTIT, chartTitle); //Initialization of the ConstantLine settingthis.chartOutFlow.OpenDataEx(ChartfxLib.CfxCod.COD_CONSTANTS, 2, 0); //Dam Elevaltion//here I intend to plot the crest on AXIS_Y2 this.chartOutFlow.ConstantLine[0].Axis = ChartfxLib.CfxAxisIndex.AXIS_Y2; this.chartOutFlow.ConstantLine[0].Label = "Dam Elelvation";this.chartOutFlow.ConstantLine[0].LineColor = (uint)ColorTranslator.ToOle(Color.Brown); this.chartOutFlow.ConstantLine[0].LineStyle = ChartfxLib.CfxLineStyle.CHART_SOLID;this.chartOutFlow.ConstantLine[0].LineWidth = 1; //Spillway Elevation//Here I intend to plot the spillway on AXIS_Y2 this.chartOutFlow.ConstantLine[1].Axis = ChartfxLib.CfxAxisIndex.AXIS_Y2; this.chartOutFlow.ConstantLine[1].Label = "Spillway Elevation";this.chartOutFlow.ConstantLine[1].LineColor = (uint)ColorTranslator.ToOle(Color.DarkSlateBlue); this.chartOutFlow.ConstantLine[1].LineStyle = ChartfxLib.CfxLineStyle.CHART_SOLID; this.chartOutFlow.ConstantLine[1].LineWidth = 1;this.chartOutFlow.CloseData(ChartfxLib.CfxCod.COD_CONSTANTS); } private void SetAxis(double[,] outFlow, double crest) { int length = 0;double AxisYMin = 0.0; double AxisYMax = 0.0;double AxisY2Min = 0.0; double AxisY2Max = 0.0; double flowMax = 0.0; //this is used to set the max on AXIS_Ydouble stageMax = 0.0; DateTime begTime; DateTime endTime; length = outFlow.GetLength(0);flowMax = 1002; stageMax = 1402.5; //the Axis X is set to the starting and ending time of the selected time period. begTime = new DateTime(2008, 1, 27, 0, 0, 0); endTime = new DateTime(2008, 1, 29, 0, 0, 0); //the Axis Y is set to be the maximum out flow, and the Axis Y2 is set to be the elevation of the damAxisYMin = 0.0; AxisYMax = flowMax + 10.0; AxisY2Min = 1000.0; AxisY2Max = crest + 200.0; //the crest of the elevation of the dam, this is used to set the max on AXIS_Y2 //Initialization of the Axis object setting this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].Title = "Time Interval (minute)"; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].Format = ChartfxLib.CfxFormat.AF_TIME;this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].AutoScale = true; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].Min = begTime.ToOADate();this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].Max = endTime.ToOADate(); //this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].STEP = 5; //How can i set the step and minor step for time serial on AXIS_X? //this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].MinorStep = 1;this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].Decimals = 0; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].TextColor = (uint)ColorTranslator.ToOle(Color.Blue); this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].Grid = false; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].GridWidth = 1;this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].LabelAngle = 45; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y].Title = "Predicted Outflow (cfs)"; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y].Format = ChartfxLib.CfxFormat.AF_NUMBER;this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y].AutoScale = true; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y].Min = AxisYMin;this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y].Max = AxisYMax; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y].Decimals = 1;this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y].TextColor = (uint)ColorTranslator.ToOle(Color.Blue); this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y].Grid = true;this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y].GridWidth = 1; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y2].Title = "Crest & Spillway Elevation (ft)"; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y2].Format = ChartfxLib.CfxFormat.AF_NUMBER;this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y2].AutoScale = true; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y2].Min = AxisY2Min; //I assign the min and max for the AXIS_Y2 here, but it does not affect!this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y2].Max = AxisY2Max; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y2].Decimals = 0; this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y2].TextColor = (uint)ColorTranslator.ToOle(Color.Blue);this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y2].GridWidth = 1; this.chartOutFlow.OpenDataEx(ChartfxLib.CfxCod.COD_COLORS, 4, 0);this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].GridColor = (uint)ColorTranslator.ToOle(Color.Blue); this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y].GridColor = (uint)ColorTranslator.ToOle(Color.Blue); this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_Y2].GridColor = (uint)ColorTranslator.ToOle(Color.Blue);this.chartOutFlow.CloseData(ChartfxLib.CfxCod.COD_COLORS); } private void DrawOutFlow(double[,] outFlow, double crest, double spillway) { int count = 0; int nseries = 0;string timeLabel = ""; count = outFlow.GetLength(0); nseries = this.chartOutFlow.NSeries; //plot the crest and spillway elevations this.chartOutFlow.OpenDataEx(ChartfxLib.CfxCod.COD_CONSTANTS, 2, 0); this.chartOutFlow.ConstantLine[0].Value = crest; this.chartOutFlow.ConstantLine[1].Value = spillway; this.chartOutFlow.CloseData(ChartfxLib.CfxCod.COD_CONSTANTS); //plot the outflow datathis.chartOutFlow.OpenDataEx(ChartfxLib.CfxCod.COD_XVALUES, nseries, count); this.chartOutFlow.OpenDataEx(ChartfxLib.CfxCod.COD_VALUES, nseries, count);for (int i=0; i<count; i++) { //set the Axis X labelstimeLabel = outFlow[i, 2].ToString() + ":" + outFlow[i, 3].ToString(); this.chartOutFlow.Axis[ChartfxLib.CfxAxisIndex.AXIS_X].set_Label(i, timeLabel); //set the outflow values this.chartOutFlow.Series[0].set_Xvalue(i, i+1); this.chartOutFlow.Series[0].set_Yvalue(i, outFlow[i, 5]); //set the stage values this.chartOutFlow.Series[1].set_Xvalue(i, i+1);// I intend to plot this data in AXIS_Y2 this.chartOutFlow.Series[1].YAxis = ChartfxLib.CfxAxisIndex.AXIS_Y2;this.chartOutFlow.Series[1].set_Yvalue(i, outFlow[i, 7]); } this.chartOutFlow.CloseData(ChartfxLib.CfxCod.COD_XVALUES); this.chartOutFlow.CloseData(ChartfxLib.CfxCod.COD_VALUES);this.chartOutFlow.RecalcScale(); }

Frank, Thanks so much for your such quick reply. For the first two items I can not test now. But I will definitely try it in office tomorrow, and post the related code if I do need some more help. I am going to elaborate in a little bit detail of what I mean about inserting an image: When you are writing a new post, there is a group of buttons just above the text area. There are such buttons as B for bold, I for italic, U for underline, list bullet, and so on. Among them there is a button on which there is a little tree image. when you hover the mouse over it, the intelli-text shows something like "Insert/edit image". So I am assuming this should be the button to insert an image. After you click this button there pops up another window. Inside this newly popped-up window there is a text box called "Image URL". My question is: What format of input is expected for this text box? like http://www.fakesite.com/images/image1.jpg or "C:\Dam\image1.jgp". I have tried the second option, it doesnot work. If the first option is right, it will be unconvenient for users to use. We have a lot of restriction to access such site. Hope this clarifies my previous post. Thanks again.

Hi, all I am trying to plot few group of data on axis Y and secondary axis Y with time as axis X. The data to be plotted on axis Y are ranging from 0 - 1000, but the data to be plotted on axis Y2 are ranging from 1000 - 1500. At the same time I want to set two constant lines, and their values are around 1000, but the difference between them is very small. For example, the first constant line is 1335, and the second is 1340. Here is my questions: Can I set the max and min of axis Y and axis Y2 separately? In the code I set them separately, for example, axis Y ranges from 0 - 1200, and axis from 1000 - 1500. But after I run it, axis Y2 still shows the range from 0 - 15000. When the axis Y2 ranges from 0 - 1500, these two constant lines are almost merged together, and very hard to see them unless I zoomed great extends. The titles of these two constant lines are overlapped with each other. Is there any way to shift them and let them not overlap? a question that is a little bit off this topic: When I try to insert an image, there is a text box called "Image URL". What kind of format input is expected? Like http://www.fakeURL.com/image/image1.jpg or "C:\FloodExercise\Adobe\image1.jpg". I tried several times to attach a screenshot, but in vain. It would be so much appreciated if any one can give a reply, and some sample code would be better.