Sorting data by date in sapui5 charts

[Former Member]

Hello Friends,

i create a line chart that represent my data in function of date, and i want to sort my data by date beacause i get a graph not sorted by date , this is my code :

<viz:ui5.Line> 

<viz:dataset> 

<viz:ui5.data.FlattenedDataset data="{/entitySet}"> 

<viz:dimensions> 

<viz:ui5.data.DimensionDefinition axis="1" name=" DATE"  value="{date}"> 

</viz:ui5.data.DimensionDefinition> 

</viz:dimensions> 

<viz:measures> 

<viz:ui5.data.MeasureDefinition name="value  " value="{VALUE}"> 

</viz:ui5.data.MeasureDefinition>

</viz:measures> 

</viz:ui5.data.FlattenedDataset>

</viz:dataset> 

               </viz:ui5.Line> 

any help please

Darine ,

[Former Member]

Basically , the type of date field in back-end should be string in oData gateway services.