Display and hide of ArcGIS API for Silverlight dynamic layer (arcgisdynamicmapservicelayer)

Here, the arcgisdynamicmapservicelayer Service released by ArcGIS Server is controlled. The ListBox below loads all service layers and dynamically controls the display of one or more layers by selecting the check box. The main code is as follows:

<esri:ArcGISDynamicMapServiceLayer ID="MyLayer"  Url="http://192.168.0.89/arcgis/rest/services/AnHuiMap/MapServer/"  Initialized="MyLayer_Initialized" />

<! -- Layer Control --> <! -- <Grid horizontalalignment = "right" margin = "0,260, 209" width = "200" Height = "" verticalalignment = "TOP"> <grid. rowdefinitions> <rowdefinition Height = "0.205 *"/> <rowdefinition Height = "0.795 *"/> </grid. rowdefinitions> <grid. columndefinitions> <columndefinition width = "0.837 *"/> <columndefinition width = "0.163 *"/> </grid. columndefinitions> <border X: Name = "bshowpiccontrol" borderthickness = "1" cursor = "hand" margin = "1, 0, 1" grid. column = "1" width = "33" mouseleftbuttondown = "bshowpiccontrol_mouseleftbuttondown" mouseleftbuttonup = "bshowpiccontrol_mouseleftbuttonup" Height = "34"> <border. background> <imagebrush imagesource = "images/layer_control.png" stretch = "NONE"/> </border. background> <tooltipservice. tooltip> <textblock fontsize = "13.333" fontfamily = "Microsoft yahei"> graphic layer control </textblock> </tooltipservice. tooltip> </Border> <grid X: Name = "grid_control" margin = "0, 1, 0" grid. rowspan = "2" width = "175" Height = "199" visibility = "Collapsed"> <grid Height = "34" background = "# fff3f3" margin = "0" Width = "174" verticalalignment = "TOP" D: layoutoverrides = "height"> <border borderbrush = "# ff0e529b" borderthickness = "1" cornerradius = "5" Height = "34" width = "174"> <stackpanel orientation =" horizontal "width =" 164 "Height =" 32 "> <checkbox X: name = "cb_zm" content = "site name" margin =, 14.667 "width =" 54 "fontsize =" "cursor =" hand "fontfamily =" Microsoft yahei "verticalignment =" center "horizontalalignment =" center "Height =" 18 "Checked = ""cb_zm_checked" unchecked = "cb_zm_unchecked"/> <radiobutton X: name = "V1" width = "54" margin = "14.667" ischecked = "true" fontsize = "" content = "data" Height = "18" groupname = "gn_group "cursor =" hand "fontfamily =" Microsoft yahei "horizontalalignment =" center "verticalignment =" center "Click =" rb_click "/> <radiobutton X: name = "Rb2" width = "54" margin = "14.667" fontsize = "" content = "site code" groupname = "gn_group" cursor = "hand" fontfamily = "Microsoft yahei "horizontalalignment =" center "verticalignment =" center "Click =" rb_click "Height =" 18 "/> </stackpanel> </Border> </GRID> <border Height = "163" margin =, 0, 0 "width =" 175 "D: layoutoverrides =" gridbox "borderbrush =" # ff0e529b "cornerradius =" 5 "borderthickness =" 1 "> <ListBox itemssource =" {binding layers. [mylayer]. layers, elementname = mymap} "borderbrush =" {X: null} "fontsize =" 13.333 "fontfamily =" Microsoft yahei "width =" 173 "Height =" 161 "> <ListBox. itemtemplate> <datatemplate> <checkbox margin = "2" X: name = "mylayer" content = "{binding name}" ischecked = "{binding defadefavisibility}" tag = "{binding ID}" clickmode = "Press" Click = "checkbox_click "/> </datatemplate> </ListBox. itemtemplate> </ListBox> </Border> </GRID> -->

# Region layer control display and hide private void mylayer_initialized (Object sender, eventargs e) {ESRI. arcGIS. client. arcgisdynamicmapservicelayer dynamicservicelayer = sender as ESRI. arcGIS. client. arcgisdynamicmapservicelayer; If (dynamicservicelayer. visiblelayers = NULL) dynamicservicelayer. visiblelayers = getdefaultvisiblelayers (dynamicservicelayer);} private int [] getdefavisvisiblelayers (ESRI. arcGIS. client. arc Gisdynamicmapservicelayer dynamicservice) {list <int> visiblelayeridlist = new list <int> (); ESRI. arcGIS. client. layerinfo [] layerinfoarray = dynamicservice. layers; For (INT Index = 0; index <layerinfoarray. length; index ++) {If (layerinfoarray [Index]. defaultvisibility) visiblelayeridlist. add (INDEX);} return visiblelayeridlist. toarray ();} private void checkbox_click (Object sender, routedeventargs E) {checkbox tickedcheckbox = sender as checkbox; string servicename = tickedcheckbox. name; bool visible = (bool) tickedcheckbox. ischecked; int layerindex = (INT) tickedcheckbox. tag; ESRI. arcGIS. client. arcgisdynamicmapservicelayer dynamicservicelayer = mymap. layers [servicename] as ESRI. arcGIS. client. arcgisdynamicmapservicelayer; List <int> visiblelayerlist = dynamicservicelayer. visiblelayers! = NULL? Dynamicservicelayer. visiblelayers. tolist (): new list <int> (); If (visible) {If (! Visiblelayerlist. contains (layerindex) visiblelayerlist. add (layerindex);} else {If (visiblelayerlist. contains (layerindex) visiblelayerlist. remove (layerindex);} dynamicservicelayer. visiblelayers = visiblelayerlist. toarray () ;}# endregion