Hi experts, I have parameter with multiple values and i have Chart, according to selected value(s) from parameter i want to be value field be viewed on this chart? How to make this happen? Appreciate any idea batkaval

simply set the value field to be the result of an expression: =IIF(Parameters!ParamName.Value = "Option1",Fields!FieldNameForOption1.Value,IIF(Parameters!ParamName.Value = "Option2",Fields!FieldNameForOption2.Value,Fields!FieldNameForOption3.Value)) etc etc - You could also use the SWITCH function rather than nesting multiple IIFs but this may give you some errors if your data value fields are different data types (int vs double etc)Rgds Geoff

But if there is a thousands of values in Combobox, and they are not selecting one by one. It may differ time to time to our needs. and there is “,” problem that needs to be cleared with JOIN. Rgds batkaval

So you want them to be able to select multiple field names and have them all displayed on the chart? Thousands of values? You are expecting people to pick from a list with thousands of values? I think a design review may be your best option here....Rgds Geoff

Hi batkaval, In order to display series in the chart according to the selected values in the parameter, we can first add all series to the chart values, and then use expressions to determine their visibilities. For example, if we need display 3 data fields OrderQuantity, CostAmount and SalesAmount. We can achieve this by the steps below: 1. Add the multi-value parameter p1 with the available values like Label Value OrderQuantity OrderQuantity CostAmount CostAmount SalesAmount SalesAmount 2. Add these 3 data fields to the data values area of the chart. 3. Right the OrderQuantity series in the chart and select Series Properties… 4. In the Series Properties window, select Visibility in the left list. 5. Select the option Show or hide based on an expression, and type in the expression like =IIf(InStr(Join(Parameters!p1.Value,","),"OrderQuantity")>0,false,true) 6. Repeat the steps 3 to 5 to configure the visibilities of other series. After that, series in chart will be displayed based the selected parameter values. However, as Geoff posted, too much values of one parameter or series in one chart might not appropriate. Thanks, Tony ChainPlease remember to mark the replies as answers if they help and unmark them if they provide no help