Issue in sap.m.Table

Hello Friends,

Using below code i am able to see the Rows into the sap.m.Table. when i change the code from "onAfterRendering" to "onInit: function()". its not working. i did debugging. i didn't understand. Can you please help me.

Controller.js

onAfterRendering: function() {            var oModel = this.getView().getModel("ManualQuoteModelLineItems");            this.getView().byId("lineItemsList1").setModel(oModel);        }

View.XML

<Table class="myCustomText" id="lineItemsList1" mode="MultiSelect" items="{/manualQuoteDataLineItem}">                <columns>                    <Column demandPopin="true" hAlign="Center" id="articleColumn1" minScreenWidth="Tablet" popinDisplay="Inline">                        <Text class="myCustomText" text="Article" textAlign="Center"/>                    </Column>                    <Column demandPopin="true" hAlign="Center" id="descriptionColumn1" minScreenWidth="Tablet" popinDisplay="Inline">                        <Text class="myCustomText" text="Qty"/>                    </Column>                    <Column demandPopin="true" hAlign="Center" id="quantityColumn1" minScreenWidth="Tablet" popinDisplay="Inline">                        <Text class="myCustomText" text="UoM"/>                    </Column>                    <Column demandPopin="true" hAlign="Center" id="grossWeightColumn1" minScreenWidth="Tablet" popinDisplay="Inline">                        <Text class="myCustomText" text="Description"/>                    </Column>                </columns>                <ColumnListItem visible="true" class="myCustomText" id="detailsListItem1">                    <cells>                                  <Input id="articaleId" value="{Article}" editable="true" maxLength="18" width="70%" class="sapMTableContentMargin"                     showValueHelp="true" valueHelpRequest="OnSelectArticle" submit="onEnterArticale" liveChange="onChangeArticle"/>                            <Input id="QtyId" value="{Qty}" editable="true" maxLength="10" width="40%" class="sapMTableContentMargin"                    submit="onEnterArticaleonQty" liveChange="onChangeQty" />                   <Text id="UoMId" text="{UoM}" visible="true" width="20%" class="sapMTableContentMargin" />            <Text id="descId" text="{DESC}" visible="true" width="100%" class="sapMTableContentMargin" />                                  </cells>                </ColumnListItem>            </Table>

manifest.json

"models": {                      "ManualQuoteModelLineItems": {                "type": "sap.ui.model.json.JSONModel",                "uri": "model/ManualQuoteLineItem.json"            }                 }

ManualQuoteLineItem.json

{    "manualQuoteDataLineItem": [{            "Article": "",            "Qty": "",            "UoM": "",            "DESC": ""        }, {            "Article": "",            "Qty": "",            "UoM": "",            "DESC": ""                    }
]
}       

Regards

Vijay