How to calculate total value of products in a text box when qty is changed

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hi I had a wpf datagrid view for products which have columns qty price and total when I add one product total will be calculated by qty * price I had a text box which will store sum of total but when I change qty value in textbox is not changed until and unless it loses its focus from qty kindly help

What I have tried:

decimal total= 0;

for (int i = 0; i < dgvProducts.Items.Count; i++)
{
BLProducts blpro = dgvProducts.Items[i] as BLProducts;
total+= blpro.qty * blpro.price;
}

txtproductTotal.Text = Parsing.ParsetoRound(total, CommonVariables.DecimalPlaces);

I had used this method in celleditending

Posted 16-Aug-16 1:04am

girishmdr

Updated 16-Aug-16 11:21am

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Maciej Los 16-Aug-16 8:04am

Sorry, but your question is not clear! Please, be more specific and provide more details about your issue...

Member 12346239 16-Aug-16 9:39am

For quantity which control you used textBox or dropDown ?

girishmdr 16-Aug-16 10:02am

qty,price and total are in datagrid and a textbox which shows the sum of every product outside the grid.qty is a datgrid textboxcolumn

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Maciej Los · Answer 1 · 2016-08-16T11:21:00

Solution 1

If i understand you well, especially this statement:

girishmdr[^] wrote:
(...) when I change qty value in textbox is not changed until and unless it loses its focus from qty

This is normal behviour of WPF controls. Please read this: Routed Events Overview[^] - WPF Input Events part to find out why.

Posted 16-Aug-16 11:21am

Maciej Los

Comments

girishmdr 17-Aug-16 3:09am

Ok I will explain about my question..

I had a datagrid which contains columns qty price and total

when I add one product it will have a price fetched from db say Rs.100
I give qty as 5 so total will be 500

when I add other product having price Rs.150 and I give qty as 4 total will be 600.

These all things happening in gridview and the grant total(textbox outside) will be calculating sum of total(gridview total) ie 500+600=1100

I need that 1100 or whatever when I change the qty in the datagridview itself..

kindly help me..