How to set color on blank cell
I need to set color for the one whole row but the problem is some of my cells are blank cell, not containing any data,
XSSFRow row2 = sheet.getRow(1);
CellStyle style = wb.createCellStyle();
style.setFillForegroundColor(IndexedColors.GREEN.getIndex());
style.setFillPattern(CellStyle.SOLID_FOREGROUND);
for (int i = 0; i < row1.getLastCellNum() + 1; i++) {// For each cell in the row
row2.getCell(i).setCellStyle(style);// Set the style
}
I got error like this:
java.lang.NullPointerException
I believe this error come from the blank cell because when I try to set color on cell that contain data for example:
row2.getCell(4).setCellStyle(style);
the particular cell is in color accordingly.
Can we actually put color on a blank cell?
java apache-poi
asked Nov 16 '18 at 7:36
sharkysharky
879
add a comment |
I need to set color for the one whole row but the problem is some of my cells are blank cell, not containing any data,
XSSFRow row2 = sheet.getRow(1);
CellStyle style = wb.createCellStyle();
style.setFillForegroundColor(IndexedColors.GREEN.getIndex());
style.setFillPattern(CellStyle.SOLID_FOREGROUND);
for (int i = 0; i < row1.getLastCellNum() + 1; i++) {// For each cell in the row
row2.getCell(i).setCellStyle(style);// Set the style
}
I got error like this:
java.lang.NullPointerException
I believe this error come from the blank cell because when I try to set color on cell that contain data for example:
row2.getCell(4).setCellStyle(style);
the particular cell is in color accordingly.
Can we actually put color on a blank cell?
java apache-poi
asked Nov 16 '18 at 7:36
sharkysharky
879
add a comment |
I need to set color for the one whole row but the problem is some of my cells are blank cell, not containing any data,
XSSFRow row2 = sheet.getRow(1);
CellStyle style = wb.createCellStyle();
style.setFillForegroundColor(IndexedColors.GREEN.getIndex());
style.setFillPattern(CellStyle.SOLID_FOREGROUND);
for (int i = 0; i < row1.getLastCellNum() + 1; i++) {// For each cell in the row
row2.getCell(i).setCellStyle(style);// Set the style
}
I got error like this:
java.lang.NullPointerException
I believe this error come from the blank cell because when I try to set color on cell that contain data for example:
row2.getCell(4).setCellStyle(style);
the particular cell is in color accordingly.
Can we actually put color on a blank cell?
java apache-poi
asked Nov 16 '18 at 7:36
sharkysharky
879
I need to set color for the one whole row but the problem is some of my cells are blank cell, not containing any data,
XSSFRow row2 = sheet.getRow(1);
CellStyle style = wb.createCellStyle();
style.setFillForegroundColor(IndexedColors.GREEN.getIndex());
style.setFillPattern(CellStyle.SOLID_FOREGROUND);
for (int i = 0; i < row1.getLastCellNum() + 1; i++) {// For each cell in the row
row2.getCell(i).setCellStyle(style);// Set the style
}
I got error like this:
java.lang.NullPointerException
I believe this error come from the blank cell because when I try to set color on cell that contain data for example:
row2.getCell(4).setCellStyle(style);
the particular cell is in color accordingly.
Can we actually put color on a blank cell?
java apache-poi
java apache-poi
asked Nov 16 '18 at 7:36
sharkysharky
879
asked Nov 16 '18 at 7:36
sharkysharky
879
asked Nov 16 '18 at 7:36
sharkysharky
879
asked Nov 16 '18 at 7:36
sharkysharky
879
asked Nov 16 '18 at 7:36
sharkysharky
879
879
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
You should try below approach.
Here i have given you logic as i don't have exactly the dependency please follow below approach First check if row2.getCell is not null then set otherwise create cell and then set.
XSSFRow row2 = sheet.getRow(1);
CellStyle style = wb.createCellStyle();
style.setFillForegroundColor(IndexedColors.GREEN.getIndex());
style.setFillPattern(CellStyle.SOLID_FOREGROUND);
for (int i = 0; i < row2.getLastCellNum(); i++) {// For each cell in the row
if( row2.getCell(i)!=null){
row2.getCell(i).setCellStyle(style);// Set the style
}else{
Cell cell=row2.createCell(i);
cell.setCellStyle(style);
}
}
answered Nov 16 '18 at 7:43
GauravRai1512GauravRai1512
631112
I got this errorjava.lang.IllegalArgumentException: Invalid column index (16384). Allowable column range for EXCEL2007 is (0..16383) or ('A'..'XFD')
– sharky
Nov 16 '18 at 7:46
please check now you need to remove +1 from for loop.
– GauravRai1512
Nov 16 '18 at 7:48
Specifying a MissingCellPolicy when you get the cell is probably cleaner, and certainly shorter!
– Gagravarr
Nov 16 '18 at 8:36
add a comment |
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1 Answer
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votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You should try below approach.
Here i have given you logic as i don't have exactly the dependency please follow below approach First check if row2.getCell is not null then set otherwise create cell and then set.
XSSFRow row2 = sheet.getRow(1);
CellStyle style = wb.createCellStyle();
style.setFillForegroundColor(IndexedColors.GREEN.getIndex());
style.setFillPattern(CellStyle.SOLID_FOREGROUND);
for (int i = 0; i < row2.getLastCellNum(); i++) {// For each cell in the row
if( row2.getCell(i)!=null){
row2.getCell(i).setCellStyle(style);// Set the style
}else{
Cell cell=row2.createCell(i);
cell.setCellStyle(style);
}
}
answered Nov 16 '18 at 7:43
GauravRai1512GauravRai1512
631112
I got this errorjava.lang.IllegalArgumentException: Invalid column index (16384). Allowable column range for EXCEL2007 is (0..16383) or ('A'..'XFD')
– sharky
Nov 16 '18 at 7:46
please check now you need to remove +1 from for loop.
– GauravRai1512
Nov 16 '18 at 7:48
Specifying a MissingCellPolicy when you get the cell is probably cleaner, and certainly shorter!
– Gagravarr
Nov 16 '18 at 8:36
add a comment |
You should try below approach.
Here i have given you logic as i don't have exactly the dependency please follow below approach First check if row2.getCell is not null then set otherwise create cell and then set.
XSSFRow row2 = sheet.getRow(1);
CellStyle style = wb.createCellStyle();
style.setFillForegroundColor(IndexedColors.GREEN.getIndex());
style.setFillPattern(CellStyle.SOLID_FOREGROUND);
for (int i = 0; i < row2.getLastCellNum(); i++) {// For each cell in the row
if( row2.getCell(i)!=null){
row2.getCell(i).setCellStyle(style);// Set the style
}else{
Cell cell=row2.createCell(i);
cell.setCellStyle(style);
}
}
answered Nov 16 '18 at 7:43
GauravRai1512GauravRai1512
631112
I got this errorjava.lang.IllegalArgumentException: Invalid column index (16384). Allowable column range for EXCEL2007 is (0..16383) or ('A'..'XFD')
– sharky
Nov 16 '18 at 7:46
please check now you need to remove +1 from for loop.
– GauravRai1512
Nov 16 '18 at 7:48
Specifying a MissingCellPolicy when you get the cell is probably cleaner, and certainly shorter!
– Gagravarr
Nov 16 '18 at 8:36
add a comment |
You should try below approach.
Here i have given you logic as i don't have exactly the dependency please follow below approach First check if row2.getCell is not null then set otherwise create cell and then set.
XSSFRow row2 = sheet.getRow(1);
CellStyle style = wb.createCellStyle();
style.setFillForegroundColor(IndexedColors.GREEN.getIndex());
style.setFillPattern(CellStyle.SOLID_FOREGROUND);
for (int i = 0; i < row2.getLastCellNum(); i++) {// For each cell in the row
if( row2.getCell(i)!=null){
row2.getCell(i).setCellStyle(style);// Set the style
}else{
Cell cell=row2.createCell(i);
cell.setCellStyle(style);
}
}
answered Nov 16 '18 at 7:43
GauravRai1512GauravRai1512
631112
You should try below approach.
Here i have given you logic as i don't have exactly the dependency please follow below approach First check if row2.getCell is not null then set otherwise create cell and then set.
XSSFRow row2 = sheet.getRow(1);
CellStyle style = wb.createCellStyle();
style.setFillForegroundColor(IndexedColors.GREEN.getIndex());
style.setFillPattern(CellStyle.SOLID_FOREGROUND);
for (int i = 0; i < row2.getLastCellNum(); i++) {// For each cell in the row
if( row2.getCell(i)!=null){
row2.getCell(i).setCellStyle(style);// Set the style
}else{
Cell cell=row2.createCell(i);
cell.setCellStyle(style);
}
}
answered Nov 16 '18 at 7:43
GauravRai1512GauravRai1512
631112
edited Nov 16 '18 at 7:47
answered Nov 16 '18 at 7:43
GauravRai1512GauravRai1512
631112
answered Nov 16 '18 at 7:43
GauravRai1512GauravRai1512
631112
answered Nov 16 '18 at 7:43
GauravRai1512GauravRai1512
631112
631112
I got this errorjava.lang.IllegalArgumentException: Invalid column index (16384). Allowable column range for EXCEL2007 is (0..16383) or ('A'..'XFD')
– sharky
Nov 16 '18 at 7:46
please check now you need to remove +1 from for loop.
– GauravRai1512
Nov 16 '18 at 7:48
Specifying a MissingCellPolicy when you get the cell is probably cleaner, and certainly shorter!
– Gagravarr
Nov 16 '18 at 8:36
add a comment |
I got this errorjava.lang.IllegalArgumentException: Invalid column index (16384). Allowable column range for EXCEL2007 is (0..16383) or ('A'..'XFD')
– sharky
Nov 16 '18 at 7:46
please check now you need to remove +1 from for loop.
– GauravRai1512
Nov 16 '18 at 7:48
Specifying a MissingCellPolicy when you get the cell is probably cleaner, and certainly shorter!
– Gagravarr
Nov 16 '18 at 8:36
I got this error
java.lang.IllegalArgumentException: Invalid column index (16384). Allowable column range for EXCEL2007 is (0..16383) or ('A'..'XFD')– sharky
Nov 16 '18 at 7:46
I got this error
java.lang.IllegalArgumentException: Invalid column index (16384). Allowable column range for EXCEL2007 is (0..16383) or ('A'..'XFD')– sharky
Nov 16 '18 at 7:46
please check now you need to remove +1 from for loop.
– GauravRai1512
Nov 16 '18 at 7:48
please check now you need to remove +1 from for loop.
– GauravRai1512
Nov 16 '18 at 7:48
Specifying a MissingCellPolicy when you get the cell is probably cleaner, and certainly shorter!
– Gagravarr
Nov 16 '18 at 8:36
Specifying a MissingCellPolicy when you get the cell is probably cleaner, and certainly shorter!
– Gagravarr
Nov 16 '18 at 8:36
add a comment |
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