advanced query problem

2. ledna 2009 0:57

0

I am trying to build a query that will search for all desktop sized images using a textbox in vb.net 2.0, here is my code.

Code Snippet

advquery = txtQuery.Text + " filterui:imagesize-desktop_w_" + Screen.PrimaryScreen.Bounds.Width.ToString + "+filterui:imagesize-desktop_h_" + Screen.PrimaryScreen.Bounds.Height.ToString

this will not work as I get a null reference error

This will work

Code Snippet

advquery = txtQuery.Text + " filterui:imagesize-large"

What am I doing wrong?

Please advise.

Thank you

JW

Všechny reakce

2. ledna 2009 1:53

Vlastník

0

Hi,

Your query looks fine to me. Where in your code are you hitting a null reference exception? If its while processing the results, then can you please run the same query on http://www.live.com/?scope=images and check if you are getting any results?If yes, please provide the exact query so that we can investigate the issue with the image API.

Thanks
2. ledna 2009 3:28

0

I am getting the null reference in my for/next loop at next.

Code Snippet

Public Sub printPic(ByVal response As SearchResponse)

' Create a new StringBuilder to accumulate the text to be displayed in the WebBrowser

' control when the search is complete and all results are returned.

Dim sb As New StringBuilder()

sb.EnsureCapacity(8000)

Dim result As ImageResult

' Set up the HTML tags for the output returned from the search.

sb.Append("<HTML><BODY>")

sb.Append("<style>body {margin: 0px; padding: 0px; left: 0px; top: 0px; font-size:13px; font-family: Verdana, Arial, Helvetica, sans-serif;}")

sb.Append("a {font-family: Verdana; color: #006699; text-decoration: none; }")

sb.Append("a:hover {text-decoration: underline;}")

sb.Append("IMG {border:0px;}")

sb.Append("</style>")

With response

' Using foreach, loop through all the SourceResponses in the SearchResponse.

For Each result In response.Image.Results

With result

sb.Append("<CENTER>" + .MediaUrl + "</CENTER><br>")

sb.Append("<CENTER><IMG SRC=""" + .MediaUrl + """/></CENTER>")

imgurl = .MediaUrl

myImage = LoadImageFromUrl(imgurl)

End With

Next

End With

' Close the BODY and HTML tags.

sb.Append("</BODY></HTML>")

' Set the text of the WebBrowser control to the HTML contained in the StringBuilder.

WebBrowser1.DocumentText = sb.ToString

End Sub

Here is the query for "dog" from http://www.live.com/?scope=images

It does work fine

http://search.live.com/images/results.aspx?q=dog+filterui:imagesize-desktop_w_1152+filterui:imagesize-desktop_h_864&scope=images&qs=n&FORM=I6IR
2. ledna 2009 20:16

Vlastník

0

If you are using SOAP, your query needs to be "dog filterui:imagesize-desktop_w_1152 filterui:imagesize-desktop_h_864" without any '+' characters in between the refinements and the actual query string. SOAP has its own encoding and "+" is different from space in SOAP encoding.

Thanks
3. ledna 2009 3:08

0

Thank you. It works fine now.

Also, does anyone know where I can find more information about queries besides trial and error playing with live.com? I have had no luck finding any documentation. Thanks.
5. ledna 2009 23:47

Vlastník

0

You can refer to the link below that explains how to construct advanced queries on live.com. It also links to other topics such as advance search keywords.

http://help.live.com/Help.aspx?market=en-US&project=WL_Searchv1&querytype=topic&query=WL_SEARCH_REF_AdvancedSearch.htm

Unfortunetely as far as documentation on how to use refinements like filter: with query strings on the image vertical is concerned, we don't have a public facing document as of now. Thank you for bringing it to our attention though. I have brought it to the notice of the team and we will add it shortly.

Thanks!