Blackberry grid layout customizations - sqlite

Question

How to add margins to the grid elements in grid manager layout of blackberry.I want it to appear exactly like it looks on a sqlite table with rows and columns having neat margins.Also i would like to add color to each row of the grid.The elements in the grid have been fetched from sqlite table string by string.
I have the following code:
GridFieldManager grid = new GridFieldManager(10,5,0);
grid.add(new LabelField("Date"));
grid.add(new LabelField("Bill"));
grid.add(new LabelField("Receipt"));
grid.add(new LabelField("Narration"));
grid.add(new LabelField("ID"));
grid.setColumnPadding(15);
grid.setRowPadding(20);
for (int i = 1; i < grid.getRowCount(); i++) {
System.out.println("Inside for first loops");
for (int j = 0; j < grid.getColumnCount() ; j++) {
System.out.println("Inside for second loops");
while(c.next()) {
System.out.println("Inside while");
Row r;
r = c.getRow();
for (int k = 4; k >=0; k--) {
System.out.println("Inside for loops");
if(k==0 || k==3) {
System.out.println("Retrieving date or narration");
grid.insert(new LabelField(r.getString(k)) {
public void paint(Graphics graphics) {
graphics.setColor(Color.BROWN);
super.paint(graphics);
}
},i,j);
} else {
System.out.println("Retrieving other values");
String p = "" + r.getInteger(k);
grid.insert(new LabelField(p) {
public void paint(Graphics graphics) {
graphics.setColor(Color.BROWN);
super.paint(graphics);
}
},i,j);
}
grid.setBackground(
BackgroundFactory.createLinearGradientBackground(
Color.GOLD,Color.CHOCOLATE,Color.GOLDENROD,Color.CORAL));
}
System.out.println("Exiting while");
}
System.out.println("Exiting sec for");
break;
}
System.out.println("Exiting first for");
break;
}
With the above code I am getting a linear gradient background color being applied to the whole screen. Also the elements of the grid excluding the headings are in brown color.
What I now want to achieve is separate colors for each row.
Anyone aware on the solution to this please share. Thanks.

Answer 1

To add color to the fetched rows you could use this code:
for (int k = 4; k >=0; k--)
{
System.out.println("Inside for loops");
//Check for whether column retrieved is date or naraation
if(k==0 || k==3)
{
System.out.println("Retrieving date or narration");
grid.insert(new LabelField(r.getString(k))
{
public void paint(Graphics graphics)
{
graphics.setColor(Color.GOLD);
super.paint(graphics);
}
},i,j);
}
else
{
//Check for whether column retrieved is bills,rec or id
System.out.println("Retrieving other values");
String p = "" + r.getObject(k);
//if(r.getString(k) != null)
//{
grid.insert(new LabelField(p)
{
public void paint(Graphics graphics)
{
graphics.setColor(Color.GOLD);
super.paint(graphics);
}
},i,j);
// }
}
Using it in if else manner may help your solution.

Answer 2

You can achieve the color part in two ways:
Override the grid manager paint method (difficult)
Add a custom VerticalFieldManager containing exactly one label field to each cell, instead of adding the labelfield directly. This is the easiest approach IMHO.