Merge pull request #8 from syncfusion/Update-Nuget-Version

Added validation to Expense description..

ExpenseAnalysis/ExpenseAnalysis/Model/TransactionDetail.cs

@@ -20,11 +20,12 @@ namespace ExpenseAnalysis
 
     public class AddTransactionDetail
     {
-
         public double Spent { get; set; }
 
         public CategoryPicker Category { get; set; }
 
+        [Display(Name = "Expense Description")]
+        [Required(AllowEmptyStrings = false, ErrorMessage = "Description should not be empty")]
         public string ExpenseDescription { get; set; }
 
         public DateTime Date { get; set; }

ExpenseAnalysis/ExpenseAnalysis/View/AddTransactionsPage.xaml.cs

@@ -8,12 +8,17 @@ namespace ExpenseAnalysis
     {
         public TransactionPage TransactionPage;
 
+        bool isDescriptionValid;
+
         public AddTransactionsPage()
         {
             InitializeComponent();
         }
 
         private void DoneButton_Clicked(object sender, EventArgs e)
+        {
+            isDescriptionValid = dataForm.Validate("ExpenseDescription");
+            if (isDescriptionValid)
             {
                 var newTransaction = ((ExpenseViewModel)BindingContext).SingleTransaction;
                 if (newTransaction.Spent != 0)
@@ -30,6 +35,7 @@ namespace ExpenseAnalysis
                 }
                 Navigation.PopToRootAsync();
             }
+        }
 
         private void DataForm_AutoGeneratingDataFormItem(object sender, AutoGeneratingDataFormItemEventArgs e)
         {