修改从DB获取的查询（即，考虑子句）当选择DROPDOWN项时

Question

查询：

"SELECT COUNT(ID)AS 'COUNT(ID) from tbl_Leads WHERE UserID={Current User}"

修改：

if (Query.IndexOf("WHERE") > 0) {                        
    if (Query.Contains("UserID = {CurrentUser}")) {
        Query = Query.Replace("UserID = {CurrentUser}", "UserID IN (" + UserIDs + ")");
        if (dropdownValue != 0) {
            Query += "";
            Query+= "AND FKiLeadClassID="+dropdownValue;
        }
    }
    if (Query.Contains("OrganizationID = {CurrentUser}")) {
        Query = Query.Replace("OrganizationID = {CurrentUser}", "OrganizationID=" + OrganizationID);
        if (dropdownValue != 0) {
            Query += "";
            Query += "AND FKiLeadClassID=";
            Query += dropdownValue;
        }
    }                       
}     
else if(Query.IndexOf("WHERE") == 0) {
    if (dropdownValue != 0) {
        Query += " Where";
        Query += " FKiLeadClassID=";
        Query += dropdownValue;
    }
}

需要：请考虑＆＃34; GROUPBY＆＃34;和＆＃34; ORDERBY＆＃34;条款也是如此。

我想：

"SELECT COUNT(ID)AS 'COUNT(ID) from tbl_Leads WHERE UserID IN (234) AND FKiLeadClassID=43"   

（如果没有groupby或orderby）

OR

我想：

"SELECT COUNT(ID)AS 'COUNT(ID) from tbl_Leads WHERE UserID IN (234) AND FKiLeadClassID=43"  GROUPBY(something) ORDERBY(something).