Right now i've got a datagrid with data.
There is a Edit and a Delete command, but they placed in the width. But the width is to big. So i try to add other buttons. Or Delete and edit below each other.

Exampel:

 Row 1     Row 2    Row 3    Edit   Delete

But i like this more:

 Row 1     Row 2    Row 3    Edit
                                         Delete

Is that possible ?
And how can i make that.... right now i use in de aspx code this columns for it:

<asp:EditCommandColumn
And: <asp:ButtonColumn [delete]

Is this possible? And how?
Thanks!

Use a TemplateColumn instead and simply template the Buttons as you want. Something like this: 

<asp:templatecolumn>
	<itemtemplate>
		<asp:button id="btnEdit" runat="server" commandname="Edit" text="Edit" /><br />
		<asp:button id="btnDelete" runat="server" commandname="Delete" text="Delete" />
	</itemtemplate>
</asp:templatecolumn>

I will try!

it doesnt work quite well... because i use this code to delete something:

try

hidden = (HiddenField)e.Item.FindControl("Id");

This code should work for you as long as you make sure to notate the OnDeleteCommand handler within the DataGrid control. You shouldn't be using the OnClick handler.

<asp:datagrid id="DataGrid1" runat="server" ondeletecommand="DataGrid1_DeleteCommand">

I already did that...

OnDeleteCommand="datagrid1_DeleteCommand1"

oneditcommand="datagrid1_EditCommand"

Ok it works already there was a form problem.
But is it possible to put the column where the buttons are to invisable ?
Normal visitors should not be possible to show that buttons.

Since the DataGrid has no DataBound event, you're best be is to do this in the Page.PreRnder event. The columns are referenced by index, so do something like this: 

protected void Page_PreRender(object sender, EventArgs e)
{
	DataGrid1.Columns[0].Visible = User.IsInRole("Edit");
}