I'm using Handsontable and was able to fill a data grid with 16 rows and 9 columns retrieved from a database. Each cell represents a value from a table with a many to many relation. When saving the data-grid, an array is passed to view. I want to clearly identify each cell with the id provided from the table. Is this possible? I read about the setCellMeta(), but don't know how to apply this...
What you can do is iterate all cells and set metadata for each cell (rows and columns) with the value you need.
myhot.setCellMeta(0,0,'Id',1);// where parameters are: row, col,propertyName, value.
later you can do the following to read :
myhot.getCellMeta(0,0) // rown, col
I hope it helps
Related
I am new to Tableau and I am trying to filter the results in one sheet based on a selection made in another worksheet. Below, I provide a basic outline of the problem in general terms.
Suppose I have a Sheet A and I filter on dimensions C1 and C2. Based on this I get 10 rows of my data (the original data is 100 rows, suppose). Now, I want to display only the values corresponding to these 10 rows in another worksheet B but filtered on a column C3 (not the original columns C1 and C2), i.e., I want to select the 10 different values in Column C3 and show results in sheet B corresponding to these values.
I tried Filter Action but it seems I can create filters based on the filters I have chosen on Sheet A, i.e., C1 and C2. How can I create a filter corresponding to column C3?
Thanks for your help. Please let me know if the question is too general or not clear.
I didn't totally understand your question but will try to help with whatever I understood.
You can create a filter for Column 3 in the second sheet and when you use action filter in Sheet 1 in dashboard it shows the data based on the action filter and also the filter for Column 3 set for sheet 2.
You can also use parameter.Firstly create a parameter for column3. Create a calculated field using that parameter and use the calculated field as input for the graph or table you create in sheet 2.
Refer these links for calculated fields and parameter:
https://www.interworks.com/blog/rcurtis/2016/05/26/tableau-deep-dive-parameters-calculated-fields
https://www.interworks.com/blog/anonymous/2012/03/26/how-create-and-use-parameters-tableau
I have a abstract table (table or treetable view does not matter) view which have lots of column. But not all columns are visible at the same time. Now what i want to do, when i export the table contents to pdf/excel read each row data but actually in javafx we can not get row and cell data directly. For this we must use row/cell factory. But in this case this factory is called only when we add data to the table. I can read table data model for each row but in this case i must chek which columns are visible and invisible and which data model used always, and call the required method of the data model. Doing this required lots of code lines because as mentioned i have lots of column and nested column and also different data models. So during exporting to check all of these required lots of code line. But if i can read the row and cells of row i do't need to check invisible row and data model. Just read current row and data of cell. So my question is how can i solve this issued? Do you have any suggestion?
Any suggestion?
finally I solved this problem. Thanks for java documentation. I post some code snippet so who needs can use. For reading cell value on (row,column) intersection on TreeTableView
int rowIndex = treeTableView.getRow(treeRowItem);
for(int i=0;i<treeTable.getColumns();i++){
TreeTableColumn ttc = treeTable.getColumns().get(i);
String value = ttc.getCellData(rowIndex).toString();
}
you can also use the same logic on TableView
How do I merge cells for specific rows in BIRT? Something similar to using colspan when creating a table in HTML. The data is extracted from a database and returns a fixed number of rows.
Specifically I want to convert a BIRT report that looks like this:
to this:
Thank you for your assistance.
I don't know if it is possible to do this within an onCreate event for the cells.
But depending on your use case, it may be sufficient to duplicate the detail row.
Keep the cells as is in the first detail row and merge them in the second row.
Determine a condition when to merge cells and when not.
Use this as an visibility expression for the first and second detail row like this:
First row: should_merge(...)
Second row: !should_merge(...)
I have a CSV file that looks like this. It is in matrix form where cell A1 is empty. I want to visualize this in Tableau like this
a1,a2,a3
a1,1,0.2,0.3
a2,0.3,1,0.5
a3,0.6,0.7,1
How can I build this in tableau to show a matrix?
I tried putting measure name in both the row and column field and measure values in the marks text box but i ended up with diagonal values which isn't what i want.
First structure your data in the form of a table.
A well structured CSV file for Tableau (and most tools) has a single header row that labels each column (so skipping the first cell in the header row is a problem). Then each data row that follows contains only values in each field separated by columns (so there should be no leading row labels)
Order is not significant in a relational table. The rows in a table form a set, not a matrix.
So your CSV should look something closer to
field_name_1,field_name_2,field_name_3
1,0.2,0.3
0.3,1,0.5
0.6,0.7,1
Normally, the prime use of Tableau is display an aggregated summary of the data, not to display each individual data row. So you can put measure_names on columns and measure_values on the text or label shelf to get a summary of each measure (by default a sum)
If all you want to do is to view the underlying data rows in a table for diagnostics, the easiest way is to use the view data button or menu command.
If you want to build a visualization that displays all the data (without summarizing it) in a table, you have two ways to go. The simplest is if you have a unique primary key in your data, you can place it on the row shelf to get a row in your viz for each row in your data.
If your data rows do not have a primary key, you can turn off aggregate measures from the Analysis menu, but then you'll see multiple values in each table cell. Then to get a row in your viz for each row in your data, put the calculation index() on the rows shelf and change it to discrete.
Thanks for the help.
I have a doc based Core Data app consisting of a table with two columns. The column cells are populated with US Currency dollar values. I have two labels at the bottom of each column with Number formatters. Each label displays the sum of it's respective column. I'm doing this with bindings:
Bound to the arrayController
Controller Key - arrangedObjects
modelKey - #sum.regAmount, #sum.regAmount1
The label attribute Types are int 16 in the data model.
Anyway, these calculations work fine, and the resulting values are displayed at startup.
What I need to do is also display the difference between the two resulting sums at startup in a third label. For some reason I can't pick up the sum values to preform the calculation.
This action works using a sender:
(runningBalance.intValue = (theDeposits.intValue - theAmounts.intValue));
How can I automatically display the calculated difference of the two sums at startup without manually executing the action?
Thanks again.
Paul
You don't need an action, you need a model key you can bind to just as you do with the sums. Then you bind that to the label's display(?) property and it should be called automatically.