The following XML
File. The path is "wttdata" component "componentdata" componentdata "objectquerybuilder. Find the value of the expression node whose attribute field is datastore. <Wttdata>
<Component setname = "schedulers"
Groupname = "jobexplorer">
<Componentdata name = "jobexplorer"
Version = "2.2.2098.0">
<Componentdata name = "horzsplitter"
Version = "2.2.2098.0">
<Data position = "185"/>
</Componentdata>
<Componentdata name = "vertsplitter"
Version = "2.2.2098.0">
<Data position = "150"/>
</Componentdata>
<Componentdata
Name = "tabbedobjecttreecontrol" version = "2.2.2098.0"
Visible = "true">
<Data selectedtreenodepath = "$"
Currenttab = "0"/>
</Componentdata>
<Componentdata name = "configurablelistcontrol"
Version = "2.2.2098.0">
<Column name = "" width = "32"
Sortindex = "0" sortorder = "NONE" columnorder = "0" default = "true"
/>
<Column name = "ID" width = "70" sortindex = "-1"
Sortorder = "NONE" columnorder = "1" default = "true"/>
<Column
Name = "name" width = "352" sortindex = "-1" sortorder = "NONE" columnorder = "2"
Default = "true"/>
<Column name = "assignedtoalias" width = "80"
Sortindex = "-1" sortorder = "NONE" columnorder = "3" default = "true"
/>
<Column name = "fullpath" width = "190" sortindex = "-1"
Sortorder = "NONE" columnorder = "4" default = "true"/>
<Column
Name = "lastupdatedtime" width = "150" sortindex = "1" sortorder = "descending"
Columnorder = "5" default = "true"/>
</Componentdata>
<Componentdata name = "querybuilder"
Version = "2.2.2098.0" visible = "true">
<Objectquerybuilder
Controltype = "Microsoft. distributedautomation. UI. querybuilder"
Controlassepolicy = "Microsoft. WTT. UI. Controls. objectcontrols" assembly = "wttomjobs"
Type = "Microsoft. distributedautomation. Jobs. Job" Title = "job
Query ">
<Expression Index = "1" static = "true" attachwith = ""
Mapping = "datastore" field = "datastore" operator = "equals" value = "wttmobile1"
/>
<Expression attachwith = "and" Mapping = "ID" field = "ID"
Operator = "Greater" value = "733454"/>
<Expression
Attachwith = "and" Mapping = "ID" field = "ID" operator = "less" value = "733740"
/>
</Objectquerybuilder>
</Componentdata>
<Componentdata name = "toolbar"
Version = "2.2.2098.0">
<Data
Definitioncontroller = "wttmobile1" hidequerybuilder = "true" hidehierarchy = "true"
Maxitemstodisplay = "500"/>
</Componentdata>
</Componentdata>
</Component>
<Activecomponent
Setname = "schedulers" groupname = "jobexplorer"/>
</Wttdata> The implementation code is: { { Xdoc. Load (filename ); Xelem1 = ( { Datastorestring = xelem1.getattribute ( } } } 1. Define an xmldocument object xdoc 2. Use xmldocument to load the XML file to be read 3. Find the node through selectsinglenode of xmldocument and convert the node to xmlelement. 4. xmlelement can operate on node attributes. Note: 1, Xdoc. selectsinglenode ("Descendant: expression [@ field = 'datastore']"); The selectsinglenode parameter contains a filter condition. The matching formula is Descendant: nodename [@ attribute = 'bubutevalue'] 2, xelem1 = (xmlelement) xdoc. selectsinglenode ("Descendant: expression [@ field = 'datastore']"); forces the conversion of xmlnode to xmlelement on the grounds that xmlelement is a subclass of xmlnode, the former provides more useful methods than the latter, such as reading and writing attributes. xmlnode can be converted into xmlattribute. Staticpublicstring getdatastore (string filename) string datastorestring = string. Empty; If (! String. isnullorempty (filename) xmldocument xdoc = newxmldocument (); xmlelement xelem1; xmlelement) xdoc. selectsinglenode ("Descendant: expression [@ field = 'datastore']"); If (xelem1! =
Null) "value"); Return datastorestring; |
