Reading XML element & child nodes using LINQ in Vb.net- help me in where condition :(
- by New Linq Baby
Hi, I am new in LINQ world.
I need an urgent help in reading the xml elements using LINQ with specific where condition.
I need to find the max air_temp for a county
i.e where county name = "Boone" and hour id = "06/03/2009 09:00CDT"
i tried something like below, but no luck :
Dim custs As IEnumerable = From c In Element.Load("C:\meridian.xml").Elements("county") _
Select c.Elements("hour").Elements("air_temp").Max()
For Each x In custs
Response.Write(custs(0).ToString())
Next
------------------- here is the xml file :
<forecasts>
<issued>06/02/2009 12:00CDT</issued>
- <county name="Adair">
- <hour id="06/02/2009 12:00CDT">
<air_temp>61</air_temp>
<cloud_cover>overcast</cloud_cover>
<dew_point>59</dew_point>
<precip_prob>90</precip_prob>
<precip_rate>0.12</precip_rate>
<precip_type>rain</precip_type>
<snow_rate>0.0</snow_rate>
<wind_direction>NE</wind_direction>
<wind_speed>12</wind_speed>
<dew_point_confidence>-3/+3</dew_point_confidence>
<road_temp>64</road_temp>
<road_frost_prob>0</road_frost_prob>
<road_potential_evap_rate>429</road_potential_evap_rate>
<road_temp_confidence>-3/+2</road_temp_confidence>
<dew_point_confidence>-3/+3</dew_point_confidence>
<bridge_temp>63</bridge_temp>
<bridge_temp_confidence>-4/+2</bridge_temp_confidence>
<bridge_frost>NO</bridge_frost>
</hour>
- <hour id="06/02/2009 13:00CDT">
<air_temp>61</air_temp>
<cloud_cover>overcast</cloud_cover>
<dew_point>60</dew_point>
<precip_prob>70</precip_prob>
<precip_rate>0.01</precip_rate>
<precip_type>rain</precip_type>
<snow_rate>0.0</snow_rate>
<wind_direction>ENE</wind_direction>
<wind_speed>10</wind_speed>
<dew_point_confidence>-3/+3</dew_point_confidence>
<road_temp>65</road_temp>
<road_frost_prob>0</road_frost_prob>
<road_potential_evap_rate>411</road_potential_evap_rate>
<road_temp_confidence>-3/+2</road_temp_confidence>
<dew_point_confidence>-3/+3</dew_point_confidence>
<bridge_temp>64</bridge_temp>
<bridge_temp_confidence>-4/+1</bridge_temp_confidence>
<bridge_frost>NO</bridge_frost>
</hour>
