Question

我试图通过点击按钮将GridView中的每一行插入到表中。我下面的代码的问题是它只插入第一行并在gridview的其余部分重复相同的记录。例如，如果我在第一行：

2    ABC    ATL

它将为其余列重复此操作。我如何捕获每一行并将其插入我的数据库？谢谢。这是我的代码：

protected void Insert(object sender, EventArgs e)
{
    foreach (GridViewRow row in GridView1.Rows)
    {
        if (row.RowType == DataControlRowType.DataRow)
        {
            Label ID = GridView1.Rows[0].FindControl("lblID") as Label;
            Label NAME = GridView1.Rows[0].FindControl("lblQue") as Label;
            TextBox LOC = GridView1.Rows[0].FindControl("txtPM") as TextBox;

            SqlConnection con = new SqlConnection(strConnString);
            SqlCommand cmd = new SqlCommand();
            cmd.CommandType = CommandType.Text;
            cmd.CommandText =
                "insert into myTable(ID, NAME, LOC ) values(@ID, @NAME,  @LOC) " +
                // "where ID=@ID;" + 
                "SELECT ID, NAME, LOC FROM MYTABLE";

            cmd.Parameters.Add("@ID", SqlDbType.VarChar).Value = ID.Text;
            cmd.Parameters.Add("@NAME", SqlDbType.VarChar).Value = NAME.Text;
            cmd.Parameters.Add("@LOC", SqlDbType.VarChar).Value = LOC.Text;

            GridView1.EditIndex = -1;
            GridView1.DataSource = GetData(cmd);
            GridView1.DataBind();
        }
    }
}

Answer 1

问题：您使用以下语句硬编码索引为零：

GridView1.Rows[0]

它将始终从GridView

插入第一条记录

解决方案：增加每行的行数。

试试这个：

 protected void Insert(object sender, EventArgs e)
 {  
   int index=0;
   foreach (GridViewRow row in GridView1.Rows)
    {

        if (row.RowType == DataControlRowType.DataRow)
        {

                  Label ID = GridView1.Rows[index].FindControl("lblID") as Label;
                  Label NAME = GridView1.Rows[index].FindControl("lblQue") as Label;
                  TextBox LOC = GridView1.Rows[index].FindControl("txtPM") as TextBox;


                SqlConnection con = new SqlConnection(strConnString);
                SqlCommand cmd = new SqlCommand();
                cmd.CommandType = CommandType.Text;
                cmd.CommandText = "insert into myTable(ID, NAME, LOC ) values(@ID, @NAME,  @LOC) " +
                    // "where ID=@ID;" + 
                 "SELECT ID, NAME, LOC FROM MYTABLE";

                cmd.Parameters.Add("@ID", SqlDbType.VarChar).Value = ID.Text;

                cmd.Parameters.Add("@NAME", SqlDbType.VarChar).Value = NAME.Text;

                cmd.Parameters.Add("@LOC", SqlDbType.VarChar).Value = LOC.Text;

                GridView1.EditIndex = -1;
                GridView1.DataSource = GetData(cmd);
                GridView1.DataBind();


        }
         index++;
    }
  }

Answer 2

GridView.Rows[0]将获取所有行的第一行。

而不是使用foreach声明中的行。

替换

 Label ID = GridView1.Rows[0].FindControl("lblID") as Label;

使用

 Label ID = row.FindControl("lblID") as Label;

Answer 3

请使用此代码

row.FindControl("lblID") as Label;代替GridView1.Rows[0].FindControl("lblID") as Label;

并首先执行您的插入查询，然后调用您的选择查询

 SqlConnection con = new SqlConnection(strConnString);
                    SqlCommand cmd = new SqlCommand();
                    cmd.CommandType = CommandType.Text;
                    cmd.CommandText = "insert into myTable(ID, NAME, LOC ) values(@ID, @NAME,  @LOC) ";

                    cmd.Parameters.Add("@ID", SqlDbType.VarChar).Value = ID.Text;

                    cmd.Parameters.Add("@NAME", SqlDbType.VarChar).Value = NAME.Text;

                    cmd.Parameters.Add("@LOC", SqlDbType.VarChar).Value = LOC.Text;

cmd.ExcutrNonQuery();

cmd.CommandText = "SELECT ID, NAME, LOC FROM MYTABLE";
.... //next binding  code

通过单击Button将数据从GridView插入数据库

3 个答案: