Using ireport I know how to make input controls but I have one issue that I wonder is do-able. I would like to have two input controls but I need one of them to be filled only by whatever the user picks for the first input control.
For instance, my first input control has 3 categories, from those 3 categories certain choices will need to show up in the 2nd input control's drop-down box according to whatever was chosen from the first input control.
Is it possible to have the choices be filled to the second input control in relation to what was chosen in the first?
Yes, it is. You can read about cascading input controls at JasperForge.
Related
How to show different forms on odoo 12 based on state value. I want a switch between the states to alter the form as well while keeping the same tree view of course
you can't have two different form view based on the state from a single tree view. But you can control fields/groups/pages or other elements visibility based on state using the invisible attribute.
One could create a single form create different groups in the form or even further add different notebooks and pages whose visibility can be controlled using attributes and passing in a state change in a domain.
I have a dashboard with three displayed parameters:
Time range (Last month, This month, Last 30 days, ..., custom interval)
From (the begin date of the interval)
To (ending date of interval)
My point is that I want to display "From" and "To" parameters only in case when "Time range" parameter is equal to "Custom interval".
Otherwise, i want to hide them, or make them impossible to edit.
Could you help me with this please ?
Thanks.
There are a handful of techniques for selectively hiding components on a dashboard, informally called "sheet swapping".
One simple approach is to place a floating worksheet in a layer above the components you wish to hide -- and make that worksheet have filters based on calculated fields that lead to zero rows or columns being displayed when you wish to show the components below. Then if you hide the title on the worksheet, it will display as zero pixels high or as its complete height depending on the parameter settings.
Here is an example of that approach https://public.tableau.com/en-us/s/gallery/music-uk
Another form of sheet swapping that gives you a little more flexibility is to place the components that wish to selectively display inside a layout container along with a component whose size depends on the parameter setting. Then you can adjust the "fit" options for the worksheets and where and how you place the layout container to make the optional controls slide in and out of the dashboard, or slide beneath or out from under a floating component.
Joshua Milligan published a workbook demonstrating some of these techniques http://public.tableau.com/views/SheetSwappingonSteroids/PracticalExample and he also describes them in his (highly recommended) book Learning Tableau 10
Robert Rouse also published a blog entry showing some fancier sheet swapping techniques https://www.tableau.com/about/blog/2016/1/how-create-collapsible-menu-container-tableau-48610
Note, sheet swapping puts a bit of unnecessary load on the Tableau server if overdone (computing layout positions for views that won't be displayed anyway).
If you don't mind a bit of coding, another option is to embed your visualizations within an HTML page of your own design. Then you can use all the power of HTML and CSS to style parts of your UI - including hiding and showing input controls. Then write a bit of JavaScript using Tableau's JavaScript API to let Tableau know when someone updates an HTML control so it can update the visualization in response. For a really robust complex page, that might be a better choice than trying to emulate HTML/CSS with sheet swapping techniques in a Tableau workbook.
I have a number of columns, and I want to be able to have the user press the label for each column to sort the data alphabetically\numerically by that field.
I can already accomplish this rather easily, but not very efficiently. I could make one script for each column and set it to sort by that column, perhaps even creating a global variable to keep track of the direction. Instead, I'd like to reduce it to one script and pass a variable to the script based on what button\label was pressed.
So far I've found people saying you can change the color of each one and get the variable that way, but I don't want the category headers to be different colors. Yes, I could simply use a one-step process for each one, but no way to reverse it when they click it a second time. Any ideas?
You can pass a script parameter where you specify the script to be performed on the button. From there, you can specify what field to sort on and if you like, set global variables for how the fields were sorted (order and name) that you can use in conditional formatting to give visual feedback.
There are lots of techniques out there for this, but this is one I have used especially for arbitrarily large data sets where sorts should not be done on calculations.
Just see as following image
what I want to realize is, when I choose a specific area in the Area dropbox, The Block dropbox only shows the content which only belong to the selected area. How to realize that in tableau? Area and Block are both parameters.
I would advice you to use filter. then for the block filter,click the arrow on the top right and select "Only Relevant Values".The block filter will then refresh after you choose an area to show only the blocks related to that area.
For parameters currently the dynamic refresh feature is not present, though it is being demanded.
Filters can cascade in Tableau if you select the "Relevant Values" option on the quick filter. (see the little black triangle in the top right of the quick filter).
You may want to also put the two fields into a hierarchy to teach Tableau that Blocks are subordinate to Areas, but Tableau will try to show only relevant values even if you don't define the hierarchies explicitly. To make a hierarchy, drag fields on top of each other in the data pane on the left.
There is no concept of relevant values for parameters currently. Each has an independent range of values. Parameters are not tied to a data source.
I have a feeling I am probably out of luck on this one, but Is it possible to have more than one parameter in a single drop-down list on an SSRS report? For example, the drop-down could be titled shape/color, and when opened, the top of the list shows shapes, and one can be checked, then below that in the same list, is a list of colors, where one can also be checked. Possible at all?
It is really best to have separate drop-downs for each attribute, but within a single drop-down you would first set it to "Allow multiple values". You can setup your drop-down to be formatted so that the sections of available values are grouped together. Finally, you'll need to add a query or function to check that valid combinations were selected before trying to display the results. In other words, make sure only one shape was selected. You can set an error message with a visibility that toggles based on the selection. This is one method to do what you are looking for, but if you are new to SSRS, you will probably have more specific questions along the way. Once you have more details on a specific step, you can get help with that.