private string ConstructFilterExpression(DataView view, SearchEventArgs args)
{
string format = ((view.ToTable().Columns[args.SearchColumn].DataType == typeof(string)) || (view.ToTable().Columns[args.SearchColumn].DataType == typeof(DateTime))) ? "[{0}] {1} '{2}'" : "[{0}] {1} {2}";
string str2 = "[{0}] {1} ({2})";
string str3 = "[{0}] LIKE '{1}'";
string str4 = "[{0}] NOT LIKE '{1}'";
switch (args.SearchOperation)
{
case SearchOperation.IsEqualTo:
return(string.Format(format, args.SearchColumn, "=", args.SearchString));
case SearchOperation.IsLessThan:
return(string.Format(format, args.SearchColumn, "<", args.SearchString));
case SearchOperation.IsLessOrEqualTo:
return(string.Format(format, args.SearchColumn, "<=", args.SearchString));
case SearchOperation.IsGreaterThan:
return(string.Format(format, args.SearchColumn, ">", args.SearchString));
case SearchOperation.IsGreaterOrEqualTo:
return(string.Format(format, args.SearchColumn, ">=", args.SearchString));
case SearchOperation.IsIn:
return(string.Format(str2, args.SearchColumn, "in", args.SearchString));
case SearchOperation.IsNotIn:
return(string.Format(str2, args.SearchColumn, "not in", args.SearchString));
case SearchOperation.BeginsWith:
return(string.Format(str3, args.SearchColumn, args.SearchString + "%"));
case SearchOperation.DoesNotBeginWith:
return(string.Format(str4, args.SearchColumn, args.SearchString + "%"));
case SearchOperation.EndsWith:
return(string.Format(str3, args.SearchColumn, "%" + args.SearchString));
case SearchOperation.DoesNotEndWith:
return(string.Format(str4, args.SearchColumn, "%" + args.SearchString));
case SearchOperation.Contains:
return(string.Format(str3, args.SearchColumn, "%" + args.SearchString + "%"));
case SearchOperation.DoesNotContain:
return(string.Format(str4, args.SearchColumn, "%" + args.SearchString + "%"));
}
throw new Exception("Invalid search operation.");
}
public void PerformSearch(DataView view)
{
var search = new JavaScriptSerializer().Deserialize <JsonMultipleSearch>(_searchFilters);
string str = "";
foreach (MultipleSearchRule rule in search.rules)
{
var args2 = new SearchEventArgs();
args2.SearchColumn = rule.field;
args2.SearchString = rule.data;
args2.SearchOperation = this.GetSearchOperationFromString(rule.op);
var e = args2;
_grid.OnSearching(e);
if (!e.Cancel)
{
string str2 = (str.Length > 0) ? (" " + search.groupOp + " ") : "";
str = str + str2 + this.ConstructFilterExpression(view, e);
}
view.RowFilter = str;
_grid.OnSearched(new EventArgs());
}
}
public void PerformSearch(DataView view, string search)
{
if (!string.IsNullOrEmpty(search) && Convert.ToBoolean(search))
{
var args2 = new SearchEventArgs();
args2.SearchColumn = _searchColunm;
args2.SearchString = _searchString;
args2.SearchOperation = GetSearchOperationFromString(_searchOperation);
var e = args2;
_grid.OnSearching(e);
if (!e.Cancel)
{
try
{
view.RowFilter = ConstructFilterExpression(view, e);
}
catch (Exception)
{
}
}
_grid.OnSearched(new EventArgs());
}
}
private string ConstructFilterExpression(DataView view, SearchEventArgs args)
{
bool flag;
if (view != null)
{
flag = (view.ToTable().Columns[args.SearchColumn].DataType == typeof(string)) || (view.ToTable().Columns[args.SearchColumn].DataType == typeof(DateTime));
}
else
{
var column = _grid.Columns.FromDataField(args.SearchColumn);
if (column.SearchDataType == SearchDataType.NotSet)
{
throw new ArgumentException("SearchDataType for the respective column must be set in order to get custom search string (where clause)");
}
flag = (column.SearchDataType == SearchDataType.String) || (column.SearchDataType == SearchDataType.Date);
}
string format = flag ? "[{0}] {1} '{2}'" : "[{0}] {1} {2}";
string str2 = "[{0}] {1} ({2})";
string str3 = "[{0}] LIKE '{1}'";
string str4 = "[{0}] NOT LIKE '{1}'";
switch (args.SearchOperation)
{
case SearchOperation.IsEqualTo:
return(string.Format(format, args.SearchColumn, "=", args.SearchString));
case SearchOperation.IsLessThan:
return(string.Format(format, args.SearchColumn, "<", args.SearchString));
case SearchOperation.IsLessOrEqualTo:
return(string.Format(format, args.SearchColumn, "<=", args.SearchString));
case SearchOperation.IsGreaterThan:
return(string.Format(format, args.SearchColumn, ">", args.SearchString));
case SearchOperation.IsGreaterOrEqualTo:
return(string.Format(format, args.SearchColumn, ">=", args.SearchString));
case SearchOperation.IsIn:
return(string.Format(str2, args.SearchColumn, "in", args.SearchString));
case SearchOperation.IsNotIn:
return(string.Format(str2, args.SearchColumn, "not in", args.SearchString));
case SearchOperation.BeginsWith:
return(string.Format(str3, args.SearchColumn, args.SearchString + "%"));
case SearchOperation.DoesNotBeginWith:
return(string.Format(str4, args.SearchColumn, args.SearchString + "%"));
case SearchOperation.EndsWith:
return(string.Format(str3, args.SearchColumn, "%" + args.SearchString));
case SearchOperation.DoesNotEndWith:
return(string.Format(str4, args.SearchColumn, "%" + args.SearchString));
case SearchOperation.Contains:
return(string.Format(str3, args.SearchColumn, "%" + args.SearchString + "%"));
case SearchOperation.DoesNotContain:
return(string.Format(str4, args.SearchColumn, "%" + args.SearchString + "%"));
}
throw new Exception("Invalid search operation.");
}