问题
I am querying an xml document in LINQ and would want to display the results in gridview to allow users to select from the list.
the query is as a result of user input.
Here's a copy of my xml.
<?xml version="1.0" standalone="yes"?>
<NewDataSet>
<xs:schema id="NewDataSet" xmlns="" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata" xmlns:msprop="urn:schemas-microsoft-com:xml-msprop">
<xs:element name="NewDataSet" msdata:IsDataSet="true" msdata:UseCurrentLocale="true">
<xs:complexType>
<xs:choice minOccurs="0" maxOccurs="unbounded">
<xs:element name="Table">
<xs:complexType>
<xs:sequence>
<xs:element name="ROOM_ID" msprop:OraDbType="111" type="xs:short" minOccurs="0" />
<xs:element name="SMOKING" msprop:OraDbType="126" type="xs:string" minOccurs="0" />
<xs:element name="NO_OF_PEOPLE" msprop:OraDbType="111" type="xs:short" minOccurs="0" />
<xs:element name="ROOM_COST" msprop:OraDbType="108" type="xs:double" minOccurs="0" />
<xs:element name="ROOM_TYPE" msprop:OraDbType="126" type="xs:string" minOccurs="0" />
<xs:element name="ROOM_DESC" msprop:OraDbType="126" type="xs:string" minOccurs="0" />
<xs:element name="BOOKING_ID" msprop:OraDbType="111" type="xs:short" minOccurs="0" />
<xs:element name="DATE_FROM" msprop:OraDbType="106" type="xs:dateTime" minOccurs="0" />
<xs:element name="DATE_TO" msprop:OraDbType="106" type="xs:dateTime" minOccurs="0" />
<xs:element name="HOTEL_AREA" msprop:OraDbType="126" type="xs:string" minOccurs="0" />
<xs:element name="HOTEL_NAME" msprop:OraDbType="126" type="xs:string" minOccurs="0" />
<xs:element name="RESTAURANT" msprop:OraDbType="126" type="xs:string" minOccurs="0" />
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:choice>
</xs:complexType>
</xs:element>
</xs:schema>
<Table>
<ROOM_ID>101</ROOM_ID>
<SMOKING>N</SMOKING>
<NO_OF_PEOPLE>1</NO_OF_PEOPLE>
<ROOM_COST>29.990000000000002</ROOM_COST>
<ROOM_TYPE>SINGLE ROOM</ROOM_TYPE>
<ROOM_DESC>ONE BED, MIRROR, DESK, COUCH</ROOM_DESC>
<BOOKING_ID>300</BOOKING_ID>
<DATE_FROM>2008-01-02T00:00:00+00:00</DATE_FROM>
<DATE_TO>2008-01-04T00:00:00+00:00</DATE_TO>
<HOTEL_AREA>WOLVERHAMPTON</HOTEL_AREA>
<HOTEL_NAME>LEVELS</HOTEL_NAME>
<RESTAURANT>N</RESTAURANT>
</Table>
<Table>
<ROOM_ID>105</ROOM_ID>
<SMOKING>Y</SMOKING>
<NO_OF_PEOPLE>4</NO_OF_PEOPLE>
<ROOM_COST>59.99</ROOM_COST>
<ROOM_TYPE>EN-SUITE</ROOM_TYPE>
<ROOM_DESC>KINGSIZE BED, MIRROR, GARDEN</ROOM_DESC>
<BOOKING_ID>301</BOOKING_ID>
<DATE_FROM>2009-01-02T00:00:00+00:00</DATE_FROM>
<DATE_TO>2009-01-15T00:00:00+00:00</DATE_TO>
<HOTEL_AREA>STAFFORD</HOTEL_AREA>
<HOTEL_NAME>HILTON</HOTEL_NAME>
<RESTAURANT>Y</RESTAURANT>
</Table>
<Table>
<ROOM_ID>111</ROOM_ID>
<SMOKING>N</SMOKING>
<NO_OF_PEOPLE>10</NO_OF_PEOPLE>
<ROOM_COST>49.99</ROOM_COST>
<ROOM_TYPE>HOSTEL ROOM</ROOM_TYPE>
<ROOM_DESC>DOUBLE-DECKER BED, DRAWER</ROOM_DESC>
<BOOKING_ID>302</BOOKING_ID>
<DATE_FROM>2009-03-02T00:00:00+00:00</DATE_FROM>
<DATE_TO>2009-06-15T00:00:00+01:00</DATE_TO>
<HOTEL_AREA>WOLVERHAMPTON</HOTEL_AREA>
<HOTEL_NAME>LEVELS</HOTEL_NAME>
<RESTAURANT>N</RESTAURANT>
</Table>
<Table>
<ROOM_ID>113</ROOM_ID>
<SMOKING>N</SMOKING>
<NO_OF_PEOPLE>1</NO_OF_PEOPLE>
<ROOM_COST>29.990000000000002</ROOM_COST>
<ROOM_TYPE>SINGLE ROOM</ROOM_TYPE>
<ROOM_DESC>ONE BED, MIRROR, DESK, COUCH</ROOM_DESC>
<BOOKING_ID>303</BOOKING_ID>
<DATE_FROM>2009-09-02T00:00:00+01:00</DATE_FROM>
<DATE_TO>2009-09-05T00:00:00+01:00</DATE_TO>
<HOTEL_AREA>BASWICH</HOTEL_AREA>
<HOTEL_NAME>DAYSTAR</HOTEL_NAME>
<RESTAURANT>Y</RESTAURANT>
</Table>
<Table>
<ROOM_ID>103</ROOM_ID>
<SMOKING>Y</SMOKING>
<NO_OF_PEOPLE>2</NO_OF_PEOPLE>
<ROOM_COST>39.99</ROOM_COST>
<ROOM_TYPE>DOUBLE ROOM</ROOM_TYPE>
<ROOM_DESC>DOUBLE BED, MIRROR, SEETEE</ROOM_DESC>
<BOOKING_ID>304</BOOKING_ID>
<DATE_FROM>2009-08-21T00:00:00+01:00</DATE_FROM>
<DATE_TO>2009-08-25T00:00:00+01:00</DATE_TO>
<HOTEL_AREA>CANNOCK</HOTEL_AREA>
<HOTEL_NAME>MIDAS</HOTEL_NAME>
<RESTAURANT>N</RESTAURANT>
</Table>
<Table>
<ROOM_ID>107</ROOM_ID>
<SMOKING>Y</SMOKING>
<NO_OF_PEOPLE>10</NO_OF_PEOPLE>
<ROOM_COST>49.99</ROOM_COST>
<ROOM_TYPE>HOSTEL ROOM</ROOM_TYPE>
<ROOM_DESC>DOUBLE-DECKER BED, DRAWER</ROOM_DESC>
<BOOKING_ID>305</BOOKING_ID>
<DATE_FROM>2009-08-25T00:00:00+01:00</DATE_FROM>
<DATE_TO>2009-08-31T00:00:00+01:00</DATE_TO>
<HOTEL_AREA>STOKE</HOTEL_AREA>
<HOTEL_NAME>MIVI</HOTEL_NAME>
<RESTAURANT>Y</RESTAURANT>
</Table>
<Table>
<ROOM_ID>141</ROOM_ID>
<SMOKING>N</SMOKING>
<NO_OF_PEOPLE>2</NO_OF_PEOPLE>
<ROOM_COST>39.99</ROOM_COST>
<ROOM_TYPE>DOUBLE ROOM</ROOM_TYPE>
<ROOM_DESC>DOUBLE BED, MIRROR, SEETEE</ROOM_DESC>
<HOTEL_AREA>BASWICH</HOTEL_AREA>
<HOTEL_NAME>DAYSTAR</HOTEL_NAME>
<RESTAURANT>Y</RESTAURANT>
</Table>
<Table>
<ROOM_ID>109</ROOM_ID>
<SMOKING>Y</SMOKING>
<NO_OF_PEOPLE>1</NO_OF_PEOPLE>
<ROOM_COST>19.990000000000002</ROOM_COST>
<ROOM_TYPE>BED-SIT</ROOM_TYPE>
<ROOM_DESC>ONE BED, DESK</ROOM_DESC>
<HOTEL_AREA>CANNOCK</HOTEL_AREA>
<HOTEL_NAME>MIDAS</HOTEL_NAME>
<RESTAURANT>N</RESTAURANT>
</Table>
</NewDataSet>
回答1:
You should be able to do this. Here's a few samples:
http://social.msdn.microsoft.com/Forums/en-US/xmlandnetfx/thread/149dd49d-27c3-4a92-9715-95c2cd624222
http://vstoolsforum.com/blogs/vbnet/archive/2008/08/26/linq-to-xml-with-asp-gridview-in-vb.aspx
It looks like your xml is from a dataset that was persisted to XML. If this is the case you could also reload the dataset using the info from this link:
http://msdn.microsoft.com/en-us/library/fx29c3yd.aspx
From there you can filter the dataset results with a dataview.
You can also linq over the dataset:
http://www.hookedonlinq.com/LINQtoDatasets.ashx
来源：https://stackoverflow.com/questions/1316373/displaying-results-of-a-linq-to-xml-query-in-gridview