Comments by Eng Mohamed Bassuny (Top 11 by date)

this work perfect .. thanks

but i keep wonder why WPF Code is more Difficult than Windows form code ?!

thank you for your Hint i did it as you say I really appreciate your help and i will never forget it ...thanks

i tried to understant and use Async / Await but still the UI Hang

private async void btnUpdateCustomerData_Click(object sender, EventArgs e)
{
//code Before

await InserInvoice();

//code After


}

private async Task InserInvoice()
{
//All My Code
}

I got this warning

"This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread."

at all the invoice data entered but the UI Still Hang And the progress bar Hang "Not Work"

so i think i miss something can you help me

sorry about that .. i thought this will be better if i put the two events and i think i put exactly what i talking about

i should see in the database

1. Update Invoice
2. Insert Invoice Items
3. Update Items Quantity In Database

but what i got is update Invoice only in the database


i called backgroung >>>bgWorker.RunWorkerAsync();

it do all the second code i write >>> Do Work "BackgroundWorker"

this is my project
https://drive.google.com/file/d/13W7OdFR9mR1qQzFdu3shuiYgy-CmJ2aY/view?usp=sharing

and i use it because when i put all this code in button it hang the UI
and i search for some help and i found that backgroungworker will be the way to solve that

so if you can help me and tell me how to do that i will be thankful

i put Background Worker to avoid crash the UI but when i use it it didn't anything and the progress bar hanging

and i should see in the database

1. Update Invoice
2. Insert Invoice Items
3. Update Items Quantity In Database

but what i got is update Invoice only in the database

i didn't get any error massage or any exceptions so i decided to ask for help

this is my project
https://drive.google.com/file/d/13W7OdFR9mR1qQzFdu3shuiYgy-CmJ2aY/view?usp=sharing

I never ignore anyone but i am sorry if you feel that from me

and why i not answer about data source cause i dont need data source to listview

the reason for adding listview is just to show the user what he will add for check if there is n error in some items or not

so listview don't need data source or i cant understand how i can use it to listview

and i came here to learn and get some experience i cant get it from other webs

not to make me feel stupid

and you have all your time and sorry to disturb you :)

i am not feeling good about your last words but thanks for trying to help me

listview data comes from the user of the program it is a temporary data still not inserted to database

you can see this picture https://www9.0zz0.com/2019/05/02/23/563315426.png


this is a sample of my program

Reason for my vote of 5 \n thnks alot that is help me
but i will search for full portabilty to make only one exe file