Setting a decimal textbox field to blank

I have a decimal textbox field that when first displayed is just blank. User enters 499.40 whatever. Clicks "clear fields" and I want to reset this field back to blank, not to zero...

I have below code but not sure how to do it. I want it to equal to 'string.Empty" BUT NOT to zero...
//property
private decimal? StartSalary
    {
        get
        {


            decimal? salaryValue = null;
            if (!string.IsNullOrEmpty(txtJobStartSalary.Text))
                salaryValue = Decimal.Parse(txtJobStartSalary.Text);
            return salaryValue;

        }

        set { txtJobStartSalary.Text = Convert.ToString(value); }
    }

// in clear submit button
StartSalary = 0; //BUT i want it to be blank not zero

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LVL 8
CamilliaAsked:
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NazoUKCommented:
set { txtJobStartSalary.Text = value==0 ? "" : Convert.ToString(value); }

I'd probably use null as the value that clears the textbox too though as you've used that in the get, it keeps the logic similar.
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the_billCommented:
modify Your set

//property
private decimal? StartSalary
    {
        get
        {
            decimal? salaryValue = null;
            if (!string.IsNullOrEmpty(txtJobStartSalary.Text))
                salaryValue = Decimal.Parse(txtJobStartSalary.Text);
            return salaryValue;

        }

        set { txtJobStartSalary.Text = (value==0) ? String.Empty : (string)value; }
    }

// in clear submit button
StartSalary = 0; //BUT i want it to be blank not zero
0
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