How to display or format label.text to currency and double

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I have a datagridview that has on mouse click event handler where my column "Rate_Per_Day" value = 602.55 and then it will display in my Rate_Per_Day label. In my label it displays as 602.545454545455. How can I display it as a currency and double. Thanks

What I have tried:

<pre>  private void dataGridView2_MouseClick(object sender, MouseEventArgs e)
        {                  
                
                lbl_nameUPDATE.Text = dataGridView2.SelectedRows[0].Cells["Name"].Value.ToString();                    
                txtPosition2.Text = dataGridView2.SelectedRows[0].Cells["Position"].Value.ToString();
                comboBox2.Text = dataGridView2.SelectedRows[0].Cells["Division_Unit_Section"].Value.ToString();
                txtMonthly_Rate2.Text = dataGridView2.SelectedRows[0].Cells["Monthly_Rate"].Value.ToString();
                lbl_RatePerDay.Text = dataGridView2.SelectedRows[0].Cells["Rate_Per_Day"].Value.ToString();

Posted 24-Jun-18 21:08pm

RyRen Infinity

Updated 26-Jun-18 6:37am

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2 solutions

Solution 2

The Value property returns an object, which doesn't have the standard formatting options.

The quick-and-dirty fix is to use string.Format:

C#

lbl_RatePerDay.Text = string.Format("{0:F2}", dataGridView2.SelectedRows[0].Cells["Rate_Per_Day"].Value);

A more complete fix would be to create your own extension method:

C#

public static class FormattingExtensions
{
    public static string ToString(this object obj, string format, IFormatProvider formatProvider = null)
    {
        if (obj == null) throw new NullReferenceException();
        
        var formattable = obj as IFormattable;
        if (formattable == null) return obj.ToString();
        return formattable.ToString(format, formatProvider);
    }
}

Use:

C#

lbl_RatePerDay.Text = dataGridView2.SelectedRows[0].Cells["Rate_Per_Day"].Value.ToString("F2");

Posted 26-Jun-18 6:38am

Richard Deeming

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User 7429338 · Accepted Answer · 2018-06-24T21:15:00

Solution 1

How about:

lbl_RatePerDay.Text = dataGridView2.SelectedRows[0].Cells["Rate_Per_Day"].Value.ToString(".00");

Posted 24-Jun-18 21:15pm

User 7429338

Comments

RyRen Infinity 25-Jun-18 3:20am

^ sir error says No over load for method 'Tostrings' take 1 arguments.

[no name] 25-Jun-18 3:40am

It's ToString(), not Tostrings().

RyRen Infinity 25-Jun-18 3:47am

oh sorry its a typo :D, anyways, the

lbl_RatePerDay.Text = dataGridView2.SelectedRows[0].Cells["Rate_Per_Day"].Value.ToString(".00");

still says the same error