SearchBar problems

Question

Hello

Can somebody explain to me, why am I experiencing an Issue with my search bar, everything works fine, until I delete a character

 public virtual async void TextToSearchAction(string SeachTerm) {

            if (!string.IsNullOrWhiteSpace(SeachTerm)) {

                var FilteredItems = FireBaseNotebookNotes.Where(item =>
                item.Name.ToLowerInvariant().Contains(SeachTerm.ToLowerInvariant())).ToList();

                FireBaseNotebookNotes.Clear();

                foreach (var Item in FilteredItems) {
                    FireBaseNotebookNotes.Add(Item);
                }

            } else {
                FireBaseNotebookNotes = await App.FirebaseService.ReadAsync(AppConstant.Notebooks);
                SearchBarVisibility = false;
                ProfileVisibility = true;
            }
        }

Demo: https://reccloud.com/u/4m8y3h5

I put a breakpoint and the observable gets clear for some reason, I am adding, when it contains, so why am I experiencing this strange behavior

https://github.com/eduardoagr/DuoNotes/tree/UpdatesToDatabase

Answer 1

Hello,​ @Eduardo Gomez

why am I experiencing an Issue with my search bar, everything works fine, until I delete a character

This is because the 'FireBaseNotebookNotes' collection has been changed when entering a string. To ensure that the search is performed in the complete data collection, please retrieve the data before searching.

Here is the sample code, you could refer to it

   public virtual async void TextToSearchAction(string SeachTerm)  
   {  
       if (!string.IsNullOrWhiteSpace(SeachTerm))  
       {  
           FireBaseNotebookNotes = await App.FirebaseService.ReadAsync(AppConstant.Notebooks);//add this line  
     
           var FilteredItems = FireBaseNotebookNotes.Where(item =>  
           item.Name.ToLowerInvariant().Contains(SeachTerm.ToLowerInvariant())).ToList();  
     
           FireBaseNotebookNotes.Clear();  
     
           foreach (var Item in FilteredItems)  
           {  
               FireBaseNotebookNotes.Add(Item);  
           }  
       }  
       else  
       {  
           FireBaseNotebookNotes = await App.FirebaseService.ReadAsync(AppConstant.Notebooks);  
           SearchBarVisibility = false;  
           ProfileVisibility = true;  
       }  
   }  

Best Regards,

Jarvan Zhang

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