使用

Convert.toInt32(txtPrice.Text)

这是假设 VB.NET.

从名称txtPrice"来看，您确实不想要整数而是小数.所以改为使用:

Judging by the name "txtPrice", you really don't want an Integer but a Decimal. So instead use:

Convert.toDecimal(txtPrice.Text)

如果是这种情况，请确保您将其分配给十进制而不是整数.

If this is the case, be sure whatever you assign this to is Decimal not an Integer.