1、RowCommad
//获得索引
int index = ((GridViewRow)(((Button)(e.CommandSource)).Parent.Parent)).RowIndex;

2、RowEditing等
//获得索引
int index = e.NewEditIndex;
//获取当前GridViewRow对象
GridViewRow editGridViewRow = autoGridView.Rows[girdviewEditIndex];

//获取内容方法一 row中有控件Label
Label girdviewTitleLabel = editGridViewRow.Cells[0].FindControl("titleLabel") as Label;
string gridViewContent = girdviewTitleLabel.Text;
//获取内容方法二 row中有无控件Label
//string gridViewContent = editGridViewRow.Cells[0].Text;

3、RowDeleting等
//获得索引
int index=e.RowIndex ;
//获取当前GridViewRow对象
GridViewRow gvr=autoGridView.Rows[index];
//取得当前行第二个单元格中的文字
string str = gvr.Cells[1].Text;