private static string GetLinqExpression(string filterExpressionCompare, Util.SearchArguments args, bool caseSensitive, Type dataType)
{
string text = caseSensitive ? args.SearchString : args.SearchString.ToLower();
string arg = args.SearchColumn;
if (dataType != null && dataType == typeof(string) && !caseSensitive)
{
arg = string.Format("{0}.ToLower()", args.SearchColumn);
}
switch (args.SearchOperation)
{
case SearchOperation.IsEqualTo:
return(string.Format(filterExpressionCompare, arg, "==", text));
case SearchOperation.IsNotEqualTo:
return(string.Format(filterExpressionCompare, arg, "<>", text));
case SearchOperation.IsLessThan:
return(string.Format(filterExpressionCompare, arg, "<", text));
case SearchOperation.IsLessOrEqualTo:
return(string.Format(filterExpressionCompare, arg, "<=", text));
case SearchOperation.IsGreaterThan:
return(string.Format(filterExpressionCompare, arg, ">", text));
case SearchOperation.IsGreaterOrEqualTo:
return(string.Format(filterExpressionCompare, arg, ">=", text));
case SearchOperation.BeginsWith:
return(string.Format("{0}.StartsWith(\"{1}\")", arg, text));
case SearchOperation.DoesNotBeginWith:
return(string.Format("!{0}.StartsWith(\"{1}\")", arg, text));
case SearchOperation.EndsWith:
return(string.Format("{0}.EndsWith(\"{1}\")", arg, text));
case SearchOperation.DoesNotEndWith:
return(string.Format("!{0}.EndsWith(\"{1}\")", arg, text));
case SearchOperation.Contains:
return(string.Format("{0}.Contains(\"{1}\")", arg, text));
case SearchOperation.DoesNotContain:
return(string.Format("!{0}.Contains(\"{1}\")", arg, text));
}
throw new Exception("Invalid search operation.");
}
public static string GetWhereClause(JQGrid grid, string searchField, string searchString, string searchOper)
{
string text = " && ";
string text2 = "";
new Hashtable();
Util.SearchArguments args = new Util.SearchArguments
{
SearchColumn = searchField,
SearchString = searchString,
SearchOperation = Util.GetSearchOperationFromString(searchOper)
};
string str = (text2.Length > 0) ? text : "";
string str2 = Util.ConstructLinqFilterExpression(grid, args);
return(text2 + str + str2);
}
public static string GetWhereClause(JQGrid grid, string filters)
{
JsonMultipleSearch jsonMultipleSearch = JsonConvert.DeserializeObject <JsonMultipleSearch>(filters);
string text = "";
foreach (MultipleSearchRule current in jsonMultipleSearch.rules)
{
Util.SearchArguments args = new Util.SearchArguments
{
SearchColumn = current.field,
SearchString = current.data,
SearchOperation = Util.GetSearchOperationFromString(current.op)
};
string str = (text.Length > 0) ? (" " + jsonMultipleSearch.groupOp + " ") : "";
text = text + str + Util.ConstructLinqFilterExpression(grid, args);
}
return(text);
}
private static string ConstructLinqFilterExpression(JQGrid grid, Util.SearchArguments args)
{
JQGridColumn jQGridColumn = grid.Columns.Find((JQGridColumn c) => c.DataField == args.SearchColumn);
if (jQGridColumn.DataType == null)
{
throw new DataTypeNotSetException("JQGridColumn.DataType must be set in order to perform search operations.");
}
string filterExpressionCompare = (jQGridColumn.DataType == typeof(string)) ? "{0} {1} \"{2}\"" : "{0} {1} {2}";
if (jQGridColumn.DataType == typeof(DateTime))
{
DateTime dateTime = DateTime.Parse(args.SearchString);
string str = string.Format("({0},{1},{2})", dateTime.Year, dateTime.Month, dateTime.Day);
filterExpressionCompare = "{0} {1} DateTime" + str;
}
string str2 = string.Format("{0} != null AND ", args.SearchColumn);
return(str2 + Util.GetLinqExpression(filterExpressionCompare, args, jQGridColumn.SearchCaseSensitive, jQGridColumn.DataType));
}
public static string GetWhereClause(JQGrid grid, NameValueCollection queryString)
{
string text = " && ";
string text2 = "";
new Hashtable();
foreach (JQGridColumn current in grid.Columns)
{
string text3 = queryString[current.DataField];
if (!string.IsNullOrEmpty(text3))
{
Util.SearchArguments args = new Util.SearchArguments
{
SearchColumn = current.DataField,
SearchString = text3,
SearchOperation = current.SearchToolBarOperation
};
string str = (text2.Length > 0) ? text : "";
string str2 = Util.ConstructLinqFilterExpression(grid, args);
text2 = text2 + str + str2;
}
}
return(text2);
}
internal static string ConstructLinqFilterExpression(JQAutoComplete autoComplete, Util.SearchArguments args)
{
Guard.IsNotNull(autoComplete.DataField, "DataField", "must be set in order to perform search operations. If you get this error from search/export method, make sure you setup(initialize) the grid again prior to filtering/exporting.");
string filterExpressionCompare = "{0} {1} \"{2}\"";
return(Util.GetLinqExpression(filterExpressionCompare, args, false, typeof(string)));
}