Will This Return A Value Of What I Want?

Question

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C#

private double totalPrice(double r)
{
connection...
command...
command.commandtext = "select @gg = SUM(TotalPrice) FROM inventoryout";
command.parameters.addwithvalue("@gg", r);
command.prepare();
cmd.executenonquery();
con.close()
return r;
}

the sum of totalPrice from inventoryout = 50000;

Posted 8-Mar-15 21:59pm

_bluRe_

Updated 8-Mar-15 22:03pm

Maciej Los

v2

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_bluRe_ 9-Mar-15 4:15am

how can i call this method with parameter(totalPrice(double r)) and place its value into a command.para.addwithvalue in the button event?

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OriginalGriff · Accepted Answer · 2015-03-08T22:10:00

Solution 1

Just forget the parameter and do this:

C#

command.commandtext = "select SUM(TotalPrice) FROM inventoryout";
int total = cmd.ExecuteScalar();

Posted 8-Mar-15 22:10pm

OriginalGriff