<asp:TemplateField HeaderText="操作"> 
<ItemTemplate> 
<asp:LinkButton ID="lbtnQianRu" runat="server" CommandName="QianRu" 
CommandArgument='<%# Eval("Id") %>'>签入</asp:LinkButton> 
<asp:LinkButton ID="lbtnQianChu " runat="server" CommandName="QianChu">签出 </asp:LinkButton> 
</ItemTemplate> 
</asp:TemplateField> 

protected void gv_Company_RowCommand(object sender, GridViewCommandEventArgs e){ 
if (e.CommandName == "QianRu") 

{ 

GridViewRow drv = ((GridViewRow)(((LinkButton)(e.CommandSource)).Parent.Parent)); //此得出的值是表示那行被选中的索引值 
inf id=Convert.ToInt32(GridView1.DataKeys[drv.RowIndex].Value); //此获取的值为GridView中绑定数据库中的主键值 

GridViewRow drv = (GridViewRow)((LinkButton)e.CommandSource).NamingContainer;//此得出的值是表示那行被选中的索引值 
int id = Convert.ToInt32(GridView1.Rows[drv.RowIndex].Cells[0].Text); //此获取的值为GridView中绑定数据库中的主键值,取值方法是选中的行中的第一列的值,drv.RowIndex取得是选中行的索引 
} 
} 

protected void lbtnQianChu_Command(object sender, CommandEventArgs e) 
{ 
LinkButton lb = (LinkButton)sender; 
DataControlFieldCell dcf = (DataControlFieldCell)lb.Parent; 
GridViewRow gvr = (GridViewRow)dcf.Parent; //此得出的值是表示那行被选中的索引值 
lbtnQianChu.SelectedIndex = gvr.RowIndex; 
} 

protected void LinkButton1_Click(object sender, EventArgs e) 
{ 
//行号 
int row = ((GridViewRow)((LinkButton)sender).NamingContainer).RowIndex; 
} 

DropDownList ddl = (DropDownList)sender; 
GridViewRow gvr = (GridViewRow)ddl.NamingContainer; 
int id = int.Parse(GridView1.DataKeys[gvr.RowIndex][0].ToString()); 
int num = int.Parse(ddl.Text); 

CheckBox chk = (CheckBox)sender; 
DataControlFieldCell dcf = (DataControlFieldCell)chk.Parent; 
GridViewRow gvr = (GridViewRow)dcf.Parent; 

<asp:GridView ID="gvTest" runat="server"> 
<Columns> 
<asp:TemplateField> 
<ItemTemplate> 
DisplayIndex : <%# Container.DisplayIndex %> || DataItemIndex : <%# Container.DataItemIndex %><br /> 
</ItemTemplate> 
</asp:TemplateField> 
</Columns> 
</asp:GridView> 

protected void gvInfo_RowCreated(object sender, GridViewRowEventArgs e) 
{ 
if (e.Row.RowType == DataControlRowType.DataRow) 
{ 
LinkButton lk1 = (LinkButton)e.Row.FindControl("lkbtn");//LinkButton的ID 
lk1.CommandArgument = e.Row.RowIndex.ToString(); 
} 
} 
protected void gvInfo_RowCommand(object sender, GridViewCommandEventArgs e) 
{ 
if (e.CommandName == "ADD")//我LinkButton的CommandName 
{ 
int index = Convert.ToInt32(e.CommandArgument); 
string aa = gvInfo.Rows[index].Cells[1].Text.ToString();//获取当前行列号为一的值，列号从0开始 
} 
}