Input string not in correct format

Sandeep Singh Shekhawat14y ago

double taxAmt=0.0;

double taxAmtvalue = 0.0;

bool isValid = double.TryParse(txtTax.Text.ToString(), out taxAmtvalue);

if(isValid)

{

taxAmt=taxAmtvalue;

}

//Now we can use taxAmt fruther in program

Kunal Vaishya14y ago

Try this

//////////////////

                // Make Sure txtTax.Text is not Null or Character
                taxAmnt = ((Convert.ToDouble(fAuctionProfit) * Convert.ToDouble( txtTax.Text.ToString())) / 100);
                //Or
                taxAmnt = Convert.ToDouble((Convert.ToDouble(fAuctionProfit) * Convert.ToDouble( txtTax.Text.ToString())) / 100);

Santhosh Kumar Jayaraman14y ago

Thats because when you clear textbox , there is an empty string which cannot be parsed to double

if (chkTax.Checked)
{

double Tax;
double .TryParse ( txtTax.Text.ToString (), out Tax);
taxAmnt = ((fAuctionProfit *Tax) / 100);
}
else