I want to create three dropdown buttons in a row, each one for a state, districts in that state and post offices in that particular district. Once an user select a state, a list of districts in that state automatically appears in 2nd dropdown and after selecting a district list of post offices in that district automatically appears in 3rd dropdown. I also want to store these three values entered by the user in some variables. How can i do this using flutter. Please guide.
I tried using jason for 2 dropdowns but couldnot achieve it.
How can I show or Hide column based on condition.
For example I have column name employees and there is parameter called $country(drop down list). I want that employee column only show on report when country US or Canada is chosen by user else that column does not show on report. How to add that condition on visible property of column. Is there any other steps as well to attain these results?
Thanks.
let's say if you are using text-field do display employee name,in style tab of text-field there is a property called visible,by default it will be true,click on plus sign of that property and you can right you condition there, like below
=IF([country]="US";"true";"false")
I have several dashboards displaying employee survey data at different roll-up levels.
I'm using an Action to move from a summary of all employees, to detail on a single employee. So my filter is configured to pass the "Employee Name" to the next dashboard on click. So I can click on an employee from the list, and jump to the dashboard showing the summary of a single employee. This all works great.
The problem I'm trying to solve is that the drop down list filter for Employee Name on the Employee Detail dashboard doesn't adjust to the employee the action filters the list to, it still says (All). I.E. if I click on the record for John Doe, the jump and filter of the data works correctly, but the actual filter selector still says (All), rather than John Doe.
Is it possible to get the filter selection to update?
Once you have created an Action filter, you can show that filter on a dashboard just like any other filters.
Henry, because you have a filter on your dash, the action adds another filter but the only filter it's updated is the Action filter, in the image you could see the two filters updated only on the action filter... you could do so by using only dashboards filtering each others, because the dashboards always show the data in them, and you could make the action filters each other....
here is the dahsboard from the Regional Example Database of Tableau Desktop.
I'm trying to filter a contact list that contains each contact's name, company, email address, etc. As it currently is, the contacts are sorted by their company name and I have various contacts from the same company. I want to be able to have only one contact from each company.
Here's how the Google spreadsheet looks: . The company names appear in column G. Notice how "23andMe" appears several times? This is because the first 5 contacts work at 23andMe. I only want to have 1 of those contacts from that company in this list. Throughout the rest of the spreadsheet, I have numerous contacts at the same company.
How can I view only one contact per company? Should the formula hide the row if the cell in column G (the company column) is a duplicate of the cell above it? If so, what is this formula?
One method would be to use a helper column, and then apply the filter tool to the data. So something like this in row 1 of a spare column:
=ArrayFormula(IF(ROW(G:G)=1,"Display",IFERROR(ROW(G:G)=MATCH(G:G,G:G,0))))
which will apply TRUE and FALSE values according to whether that row should be hidden or not. Apply the filter (funnel icon second from the right on the toolbar) to the whole data set, and you can toggle the "Display" column to only displaying TRUE values.
I often run into a situation where I need to come up with a GUI to edit data that has a n:m relationship. I'm looking for user friendly GUI ideas.
[table1]
|
/|\
[table2]
\|/
|
[table3]
Usually the GUI resembles something like this:
Grid that shows all items from table1
Add table3 item... (shows modal window with table3 items)
Grid that shows all items from table3
After the user picked a table3 item, I add a new row to table2 and refresh the grids.
Disadvantages:
You can only add table3 items to table1, and not the other way around;
You can only browse table1 items and see related table3 items;
I need to have one filtered grid of table3 items, and a similar one to pick new items;
My question:
Does anyone know a better way to visually browse and edit data that has a n:m relationship?
Or any nice patterns that I could "steal" from existing software packages?
Solution 1
If the data sets are not too big, use a table and allow users to place checks in cells (table 1 is X axis and table3 is Y axis).
You can probably do this for larger table1/3 data sets as long as you allow users to filter or otherwise limit which values are displayed on x and y axis.
Solution 2
To quote from this page, "A many-to-many relationship is really two one-to-many relationships with a junction/link table".
As such, you can, as one solution, simply take your own solution and resolve your first 2 dis-advantages by having screens/dialogs to go table 1=>3 as well as 3=>1.
Not a perfect solution but at least provides all the needed functionality
Solution 3
Somewhat similar to your own solution:
Show a table based on table1, with:
B. col1 containing table1 elements
C. col2 containing a list of all elements from table3 already associated with this element from table1.
The list can be either horizontal if there are usually few elements associated, or vertical (scrollable) if horizontal to too wide.
The important part is that every displayed element from table3 has a "delete" icon (x) next to it to allow removal quickly.
Allow choosing which element from table1 you want to add mappings to.
There are 2 ways of doing this - either add a checkbox to every row in your table, and have one button labeled "add relationships to selected rows" (wording needs improvement),
or simply have a 3-rd column in the table, containing button/link for adding relationships to that individual row.
The former is a good idea if the user is likely to often add exactly the same set of element from table3 to several rows from table1.
When "Add" button/link is clicked, you display a filterable multi-select list of elements from table3, with "add selected" button.
As in your solution (see my #2), this is a-symmetrical so you should implement a mirror UI for mapping from table3 to table1 if needed.
This is an old question, but as I faced the same problem again just now, I came up with this:
2 grids, side by side, showing table1 and table3 items, with paging, if necessary.
Both grids have a top toolbar which allows filtering by a value from the opposite table. Depending on your data and your gui framework, it can be a drop-down combo grid, or an auto-complete text input.
Both grids have checkboxes (last or first column)
Both grids contain an inline button/action on each row, to automatically filter the other grid on that item.
Only one grid is shown/marked as "active" or "master" at any given time (to make it clear to the user, which side of the relationship they are viewing/controlling).
When you select an item in grid1, grid1 becomes active and all items in the other grid have checkboxes ticked if they are associated with the selected item.
Vice versa, when you select an item in grid2 (table3), grid2 becomes active, all checkboxes in grid2 are blank (or dimmed-out) and checkboxes in grid1 indicate an association with the selected item.
The filtering part is made easier based on the inline button described in step 4.
I believe this solution would satisfy all your requirements.
Here's a possible solution, given in the form of an employees-to-projects m:m relationship. Each employee can work on many projects, each project can involve many employees.
From left to right, you show the following:
A panel showing the details of the currently selected employee.
A list of all employees, where each item in the list shows the employee's name as a clickable link or button (to display details in the detail panel). At the head of the list is a toggle button which filters the projects list to only those associated with the currently selected employee. At the foot of the list is a button to add a new employee, which display an empty details panel ready to accept input.
A vertical space in the middle with a single "Link" button allowing the user to link the currently selected employee with the currently selected project. Clicking this button would open a dialog allowing the user to enter details of the link (i.e. how long the employee is assigned, what role the eployee will play, etc).
A list of all projects, where each item in the list shows the project's name as a clickable link or button (to display details in the detail panel). At the head of the list is a toggle button which filters the employees list to only those associated with the currently selected projet. At the foot of the list is a button to add a new project, which display an empty details panel ready to accept input.
A panel showing the details of the currently selected project.
Obviously, you'd have to limit the size of the details panels, maybe by only showing the details relevant to the m:m relationship. You might even add a button on the details panel to open a more detailed pop-up window, or you might do away with the details panel altogether, if you're mainly interested in managing the links. This UI would work really well on wide-aspect screens.
HTH! Klay
Let me use the One Customer Has 0 or many Orders relationship example. If user wants to see the Orders of particular form I would suggest the following Use Case:
The User clicks the Search Customer link:
The System presents the Search Customer Form having the search criteria to filter on
The User fills the Search Criteria and hits the Search button
The System presents a list of the Customer ... by the matched criteria
The User hits the Open button in front of A Customer
The System presents the Customer ( in totally new page with "Back to Search Button ")
The new Page has 3 panels - 1 panel for Customer Details , second Panel for the list of Orders and 3 panel which gets populated when a Order is clicked. If the number of Orders is greater than 20 I would put a Search Orders link which guides to entirely new Search form for Orders with a predefined CustomerId fixed with the current CustomerId selected.