Как ввести текст «<» и «>» для источника данных sql в asp.net

Question

Я не могу поместить это sqlcommand в SqlDataSource.

<asp:SqlDataSource ID="dsOperator" runat="server" ConnectionString="<%$ ConnectionStrings:DefaultConnection %>"
        SelectCommand=" select '+' id,'+' txt from dual  
                        union all select '-','-' from dual
                         union all select '*','*' from dual
                         union all select '/','/' from dual
                         union all select '>','>' from dual
                         union all select '<','<' from dual
                         union all select '%','%' from dual
                         union all select '||','||' from dual
                         union all select '=','=' from dual
                         union all select '!=','!=' from dual
                         union all select '>=','>=' from dual
                         union all select '<=','<=' from dual
                         union all select 'LIKE','IS NULL' from dual
                         union all select 'BETWEEN','BETWEEN' from dual
                         union all select 'IN','IN' from dual
                         union all select 'NOT','NOT' from dual
                         union all select 'NOT IN','NOT IN' from dual
                         union all select 'AND','AND' from dual
                         union all select 'OR','OR' from dual
                         union all select 'ANY SOME','ANY SOME' from dual
                         union all select 'ALL','ALL' from dual
                        union all select 'EXISTS','EXISTS' from dual
                        union all select 'ESCAPE','ESCAPE' from dual
                        union all select 'UNION','UNION' from dual
                        union all select 'UNION ALL','UNION ALL' from dual
                        union all select 'INTERSECT','INTERSECT' from dual
                        union all select 'MINUS','MINUS' from dual " ProviderName="<%$ ConnectionStrings:DefaultConnection.ProviderName %>"></asp:SqlDataSource>             

Это моя ошибка.

введите описание изображения здесь

Answer 1

Я могу отредактировать его, введя > и <

asp:SqlDataSource ID="dsOperator" runat="server" ConnectionString="<%$ ConnectionStrings:DefaultConnection %>"
        SelectCommand=" select '+' id,'+' txt from dual  
                        union all select '-','-' from dual
                         union all select '*','*' from dual
                         union all select '/','/' from dual
                         union all select '&gt;','&gt;' from dual
                         union all select '&lt;','&lt;' from dual
                         union all select '%','%' from dual
                         union all select '||','||' from dual
                         union all select '=','=' from dual
                         union all select '!=','!=' from dual
                         union all select '&gt;=','&gt;=' from dual
                         union all select '&lt;=','&lt;=' from dual
                         union all select 'LIKE','IS NULL' from dual
                         union all select 'BETWEEN','BETWEEN' from dual
                         union all select 'IN','IN' from dual
                         union all select 'NOT','NOT' from dual
                         union all select 'NOT IN','NOT IN' from dual
                         union all select 'AND','AND' from dual
                         union all select 'OR','OR' from dual
                         union all select 'ANY SOME','ANY SOME' from dual
                         union all select 'ALL','ALL' from dual
                        union all select 'EXISTS','EXISTS' from dual
                        union all select 'ESCAPE','ESCAPE' from dual
                        union all select 'UNION','UNION' from dual
                        union all select 'UNION ALL','UNION ALL' from dual
                        union all select 'INTERSECT','INTERSECT' from dual
                        union all select 'MINUS','MINUS' from dual " ProviderName="<%$ ConnectionStrings:DefaultConnection.ProviderName %>"></asp:SqlDataSource>