Number Format For Datagridview in C#

问题

I want to set the datagridview values in number format. Currently I am getting this:

I want something like this:

I have used this code:

dgvmain.DefaultCellStyle.Format = "#.##0";

And this code

dgvmain.Columns["Amount"].DefaultCellStyle.Format = "#.##0";

But neither of this working.

回答1:

You can Set you Format String using CellStyle Builder an set the Custom format to # mm

How to do it :

1. Right click on Grid, then Properties
2. In the property window, click the button that will popup up the Edit Columns Dialog
3. Select the cell you want to format
4. On the right side of the Edit Columns Dialog select the DefaultCellStyle property Click the DefaultCellStyle property, then the CellStyleBuilder dialog will open Here you have the format property, this will give you the Format String Dialog
5. Set the Custom property to N2 you will see the preview at the bottom
6. Click OK ... till you are back to your Grid...

If you want to do it from Code, put this code inside Form_load event.

dgvmain.Columns["Amount"].DefaultCellStyle.Format = "N2";

回答2:

Goto your Form's Design mode then goto the properties of dgvmain there check DefaultCellStyle and set the format as you like.

OR

you can do this

dgvmain.Columns["Amount"].DefaultCellStyle.Format = "N2";

:)

回答3:

You have to spot, that all the data on your first screenshot are left aligned.

The formatting you try, and the others adviced are good. I must note, DefaultCellStyle most be used before you add columns to the grid. The case, that it seems specified formats does not work, tells me your data type may be string, not numeric.

回答4:

Try

dgvmain.Columns["Amount"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleRight;

来源：https://stackoverflow.com/questions/18299040/number-format-for-datagridview-in-c-sharp