How to set property for JRDesignTextField item

[vpatelgwu.edu]

JRDesignTextField textField = new JRDesignTextField();   textField.setX(xPos);   textField.setY(2);  textField.setWidth(columnWidth);   textField.setHeight(COLUMN_HEIGHT);   textField.setHorizontalAlignment(HorizontalAlignEnum.LEFT);   textField.setStyle(normalStyle);           JRDesignPropertyExpression propertyExpression = new JRDesignPropertyExpression();     JRDesignExpression expr = new JRDesignExpression();     expr.setValueClass(java.lang.String.class);     expr.setText(COL_HEADER_EXPR_PREFIX + i);     propertyExpression.setName("net.sf.jasperreports.export.xls.column.name");     propertyExpression.setValueExpression(expr);      textField.addPropertyExpression(propertyExpression);   [/code]

I am building Jasper template on fly based on query given.

I want to set below property of that Detail Section Testfiled item,

"net.sf.jasperreports.export.xls.column.name" = "col1"

"net.sf.jasperreports.export.csv.column.name"="col1"

"net.sf.jasperreports.export.csv.repeat.value" = "true"

 

How to do this?

 

OR want ed to find what is happening behind the GUI of Ireport or jaspersoft when right click on filed and select csv metadata .....