I want to dispaly dimesion of feature in creo UI .How can i achieve

i think this should be what you want, actually if you want achieve this you should learn some knowledge about the Customization develop, such as Weblink, and VBAPI, Jlnk or Toolkit. weblink and VBAPI are easier.

for the feature dimensions code you may need.

you are supposed to know something about the Creo Weblink , and basic knowledge on HTML5, Javascript that will help you know the below code better

var sess=pfcCreate("MpfcCOMGlobal").GetProESession();
var model=sess.CurrentModel;
var feattype=pfcCreate("pfcModelItemType").ITEM_FEATURE;
var feats=model.ListItems(feattype);
alert(feats.Count)
for(j=0;j<feats.Count;j++){
 var feat=feats.Item(j);
 var featStatus=pfcCreate("pfcFeatureStatus");
 if(feat.Status!=featStatus.FEAT_SUPPRESSED && feat.FeatSubType!=""){
    //alert(feat.FeatTypeName);
    //alert(feat.FeatSubType);
    //alert(feat.Number);
    alert(feat.GetName())
    var dimtype=pfcCreate("pfcModelItemType").ITEM_DIMENSION;
    var dims=feat.ListSubItems(dimtype);
    for(var k=0;k<dims.Count;k++){
        var dim=dims.Item(k);
        alert(dim.Symbol + "the feature dimension is ：" + dim.DimValue)
        //alert(dim.Symbol)
    }
 }
}