B4J Tutorial [BANanoWebix] Lesson 9: DataView

Mashiane

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The data view is also one of the elements to view data from data sources. One feeds it whatever template they need to display it it. For example here we have used..

B4X:
<div id='tmp' class='webix_strong' style='background-color:#ffeaea !important;' >#title#</div> Year: #year#<br/>System: #system#
To display..

Lesson9.png


We have defined the data to add..

B4X:
Dim data As List
    data.Initialize
    data.Add(CreateMap("title" : "Pitfall", "year" : 1982, "system" : "Atari 2600"))
    data.Add(CreateMap("title" : "Pick Axe Pete", "year" : 1982, "system" : "Odyssey2"))
    data.Add(CreateMap("title" : "Ladybug", "year" : 1981, "system" : "Colecovision"))
    data.Add(CreateMap("title" : "Altered Beast", "year" : 1988, "system" : "Sega Genesis"))
    data.Add(CreateMap("title" : "Halo", "year" : 2001, "system" : "Xbox"))
    data.Add(CreateMap("title" : "Crash Bandicoot", "year" : 1996, "system" : "Playstation"))
    data.Add(CreateMap("title" : "Guitar Hero", "year" : 2005, "system" : "Playstation 2"))
Then defined the structure of the DataView including the template to use.

B4X:
Dim dt As WixDataView
    dt.Initialize("dv")
    dt.SetxCount(4).Setwidth(640).SetHeight(250).SetBorderless(False).SetItemHeight(100)
    dt.SetStyle("margin" , "10px").SetSelect(True).SetMultiSelect(False)
    Dim tmp As UOENowHTML
    tmp.Initialize("tmp", "div")
    tmp.AddStyle("background-color", "#ffeaea")
    tmp.AddClass("webix_strong")
    tmp.AddContent("#title#")
    tmp.AddContentAfter(" Year: #year#{BR}System: #system#")
    dt.SetTemplate(tmp.HTML)
    
    dt.SetData(data)
We also added an onSelectChange event to trap what happens when a selection changes.

B4X:
pg.UI
    '
    Dim recs As List
    pg.OnSelectChange("tmp", BANano.CallBack(Me,"dataview_click", Array(recs)))
When setting the template its important to set the item height and width so that your item appears propertly.

To be able to trap the select method of the dataview we have .SetSelect(True)
 
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