Getting html tag Expression from DOM Explorer

2 posts, 0 answers
  1. Uma
    Uma avatar
    1 posts
    Member since:
    Jan 2011

    Posted 29 Apr 2011 Link to this post


    In vb . net code am geting root panel expression as below and passed as parameter to HtmlFindExpression as below.

    Dim expidMain As New HtmlFindExpression("style =MARGIN:1em", "id=divMain", "Tagname=DIV")

    I need to know Is this correct way of  finding expression.

    I also need to find all table header expression inside root panel and am trying with below line of code

       Dim simpleGridHeader As IList(Of HtmlControl) = app.find.byexpression(expidMain).Find.Allbyexpression("style=BACKGROUND-IMAGE:url(awc.axd?r=headerBackground.gif&d=ExpandableSectionControl&v=7153590);BACKGROUND-REPEAT:repeat-y;CURSOR:default", "id=?_headerDiv", "class=ExpandableHeader", "Tagname=DIV")

    but i get exception here as Object variable or With block variable not set.

    Kindly assist ASAP.

  2. Stoich
    Stoich avatar
    1 posts

    Posted 01 May 2011 Link to this post

    Hi Uma,

        check out this tutorial on Find Expressions in the WebAii Framework:

    It should give you a good idea how to create a powerful Find Expression. 

    Let me know how it goes.

    Best wishes,
    the Telerik team
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