我对GridView中ButtonField(图像类型)背后的命令有疑问.
得到了一个名为gvIngevuld的GridView,它显示了数据行和1个ButtonField行.
现在我必须将代码放在这些按钮后面(每个按钮都相同)以放置一些PDF格式的东西.
问题是我不知道如何将代码放在这些按钮后面?
我的代码:
<asp:ButtonField ButtonType="Image" ImageUrl="~/Images/pdf.png" CommandName="pdf_click" />
正如您所看到的,我使用了CommandName =“pdf_click”属性,但是当我单击其中一个按钮时,只有一个回发但没有任何反应.
谁可以帮助我在这里?
如果需要,代码背后:
protected void pdf_click(object sender,EventArgs e) { lblWelkom.Text = "Succes!"; }
谢谢.
解决方法
您应该使用gridview的RowCommand事件.将commandArgument设置为项目的唯一键. (默认情况下,它传递行的索引)
void gvIngevuld_RowCommand(Object sender,GridViewCommandEventArgs e) { // If multiple buttons are used in a GridView control,use the // CommandName property to determine which button was clicked. if(e.CommandName=="pdf_click") { // Convert the row index stored in the CommandArgument // property to an Integer. int index = Convert.ToInt32(e.CommandArgument); // Retrieve the row that contains the button clicked // by the user from the Rows collection. GridViewRow row = gvIngevuld.Rows[index]; //gbIngevuld is your GridView's name // Now you have access to the gridviewrow. } }
此外,如果已设置gridview的DataKeyNames,则可以按如下方式访问它:
int index = Convert.ToInt32(e.CommandArgument); int ServerID = Convert.ToInt32(GridView1.DataKeys[index].Value);