这里说的是通过API传递参数,不是通过Viewer的URL传递参数。
API是和Server打交道,自己的应用和crystal report server进行交互完成报表的运行调度。
其实好像所有参数类型都可以用String类型的表示,数字型和字符串型的就不用说了,日期型可以用DateTime(yyyy,MM,dd,HH,
mm,ss)或者Date(yyyy,MM,dd)格式,如果是允许多个值的,只要一个一个添加就行了,或者用分号分隔组成一个字符串。
代码片断如下(不是完整的代码):
String query = “Select SI_PROCESSINFO.SI_PROMPTS From CI_INFOOBJECTS Where SI_ID = “
+ form.getReportID();
IInfoObjects results = query(query);
if (results.size() == 0) {
throw new Exception(“The report does not exist.”);
}
IInfoObject report = (IInfoObject) results.get(0);
List allParameters = ((IReport) report).getReportParameters();
IReportParameterSingleValue newSingleParameter = null;
IReportParameter reportParameter = null;
String[] times = CrystalReportParameter.convertTimeParameters(form
.getStartDay(), form.getStartHour(), form.getEndDay(), form
.getEndHour(), form.isIncludeCurrentHour());
for (int j = 0; j < allParameters.size(); j++) {
reportParameter = (IReportParameter) allParameters.get(j);
reportParameter.getCurrentValues().clear();
String parameterName = reportParameter.getParameterName();
if (CrystalReportParameter.isMultipleValueParameter(parameterName)) {
String[] values = (String[]) form.get(parameterName);
for (int i = 0; i < values.length; i++) {
newSingleParameter = reportParameter.getCurrentValues()
.addSingleValue();
newSingleParameter.setValue(values[i]);
}
} else if (parameterName.equals(CrystalReportParameter.STARTTIME)) {
newSingleParameter = reportParameter.getCurrentValues()
.addSingleValue();
newSingleParameter.setValue(CrystalReportParameter
.getParameterTime(times[0]));
} else if (parameterName.equals(CrystalReportParameter.ENDTIME)) {
newSingleParameter = reportParameter.getCurrentValues()
.addSingleValue();
newSingleParameter.setValue(CrystalReportParameter
.getParameterTime(times[1]));
}
}
ISchedulingInfo scheduleInfo = report.getSchedulingInfo();
scheduleInfo.setType(0);
scheduleInfo.setRightNow(true);
iStore.schedule(results);
private static IInfoObjects query(String query) throws Exception {
IInfoObjects results = null;
try {
results = iStore.query(query);
} catch (SDKException e) {
logger.error(“Can not execute query:” + query, e);
throw e;
}
return results;
}