isContainFromBlock method
Implementation
bool isContainFromBlock() {
if (mBlocks == null) {
return false;
} else if (mBlocks!.isEmpty) {
return false;
}
var isFromBlock = false;
for (var blk in mBlocks!) {
if (blk is FromTableBlock) {
isFromBlock = true;
}
}
return isFromBlock;
}