Getting Column Information

Operating system requirements: iOS 5.0 or later.

Mobile device: iPad.

Description

This example displays information about table column in the development environment console. After starting the example the following operations are executed:

Width of specified table column is determined.
It is determined whether this column is fixed.
Column index and number are determined.
It is determined whether column contains table headers.
The value of the cell belonging to the obtained column is determined.
A new background color is set for the table, to which the obtained column belongs.

Source Code

Executing the example requires to place the following code in the body of the executeExample method of the ViewController class (see the Creating a Simple Data Grid section):

// Get column with the number 1
NuGridColumn *col = [[contr gridView] columnWithNumber:1];
// Get table, to which column belongs
NuGridView *parentGrid =[col parentGrid];
// Set table background color
[parentGrid setBackgroundColor:[UIColor greenColor]];
// Display column width
NSLog(@"%@ %f", @"Column width:", col.width);
// Display whether column is fixed
NSLog(@"%@ %hhd", @"Column is fixed:", col.isFixed);
// Display column index
NSLog(@"%@ %d", @"Column index:", col.columnIndex);
// Display column number
NSLog(@"%@ %d", @"Column number:", col.columnNumber);
// Display whether column contains table headers
NSLog(@"%@ %hhd", @"Column contains table headers:", col.isHeader);
// Get column cell
NuGridCell *cell = [col cellInRowWithIndex:1];
// Display cell value
NSLog(@"%@ %@", @"Cell value:", cell.value);

After executing the example the table background color is changed, the development environment console displays information about the B column:

Column width: 80.000000

Column is fixed: 0

Column index: 1

Column number: 1

Column contains table headers: 0

Cell value: 2