Asp.net 使用复选框从gridview获取值

我有这个gridview，我试图打印出用户选中的任何列的MMBR\u PROM\u ID

（Default.apsx）

欢迎使用ASP.NET！

（Default.aspx.cs）

受保护的无效页面加载（对象发送方，事件参数e）
{
如果（！IsPostBack）
{
FrontOffenties tmpdb=新的FrontOffenties（）；
List newlistmbr_Prom=tmpdb.MMBR_Prom.ToList（）；
GridView1.DataSource=newListMMBR_Prom；
GridView1.DataBind（）；
}
}  

---

因此，我的目标是，当我按下generate时，我希望能够以字符串形式打印出用户检查的所有MMBR_PROM_ID。我对aspnet有点陌生，所以我很难按照您提到的要求处理语法。您可以尝试下面给定的代码，在单击“生成”按钮时从Gridview1获取MMBR\u PROM\u ID的值

     //For every row in the grid
     foreach (GridViewRow r in GridView1.Rows)
        {
            //Find the checkbox in the current row being pointed named as grdViewCheck
            CheckBox chk = (CheckBox)r.FindControl("grdViewCheck");

            //Print the value in the reponse for the cells[1] which is MMBR_PROM_ID
            if (chk!=null && chk.Checked)
            {
                Response.Write(r.Cells[1].Text);
            }
        }

这里，单元格[1]是指特定行的单元格索引，在您的情况下，它是要打印的MMBR\u PROM\u ID。希望这有帮助

如果要查找逗号分隔的值MMBR\u PROM\u ID，下面提到的代码适用于您

     //Declaration of string variable 
     string str="";

     //For every row in the grid
     foreach (GridViewRow r in GridView1.Rows)
        {
            //Find the checkbox in the current row being pointed named as grdViewCheck
            CheckBox chk = (CheckBox)r.FindControl("grdViewCheck");

            //Print the value in the reponse for the cells[1] which is MMBR_PROM_ID
            if (chk!=null && chk.Checked)
            {
                Response.Write(r.Cells[1].Text);
                //appending the text in the string variable with a comma
                str = str + r.Cells[1].Text + ", ";
            }
        }
      //Printing the comma seperated value for cells[1] which is MMBR_PROM_ID
      Response.Write(str);

---

谢谢，成功了。我怎么能用逗号把它分开呢？并将其置于“生成”按钮下？您是否希望在逗号分隔的字符串中看到所有选中的行MMBR\u PROM\u ID？如果是，那么您需要在foreach上面声明一个字符串变量，并在If条件中使用stringVar+=r.cells[1].Text+“，”如何声明字符串变量？我已经发布了另一个代码，我认为这将满足您的要求。

     //For every row in the grid
     foreach (GridViewRow r in GridView1.Rows)
        {
            //Find the checkbox in the current row being pointed named as grdViewCheck
            CheckBox chk = (CheckBox)r.FindControl("grdViewCheck");

            //Print the value in the reponse for the cells[1] which is MMBR_PROM_ID
            if (chk!=null && chk.Checked)
            {
                Response.Write(r.Cells[1].Text);
            }
        }

     //Declaration of string variable 
     string str="";

     //For every row in the grid
     foreach (GridViewRow r in GridView1.Rows)
        {
            //Find the checkbox in the current row being pointed named as grdViewCheck
            CheckBox chk = (CheckBox)r.FindControl("grdViewCheck");

            //Print the value in the reponse for the cells[1] which is MMBR_PROM_ID
            if (chk!=null && chk.Checked)
            {
                Response.Write(r.Cells[1].Text);
                //appending the text in the string variable with a comma
                str = str + r.Cells[1].Text + ", ";
            }
        }
      //Printing the comma seperated value for cells[1] which is MMBR_PROM_ID
      Response.Write(str);