Question

gridview 编辑按钮代码

public void getData(string s)
{
SqlConnection cn = new SqlConnection("server=localhost;database=ng0002;user=gb;password=259108");
string query = "select itemno,descript1 from itemdata "+s;
SqlCommand cmd = new SqlCommand(query, cn);
// cmd.CommandType = CommandType.StoredProcedure;

SqlDataAdapter adpater = new SqlDataAdapter(cmd);
DataTable dt = new DataTable();
adpater.Fill(dt);
this.GridView1.DataSource = dt;
this.GridView1.DataBind();

}

protected void Button1Click(object sender, EventArgs e)
{

DataSet ds=ExcelToDS(@"D:\web\3333.xls ");
DataTable dt = new DataTable();
dt = ds.Tables["table1"];
string item = "";
bool flag=false;
foreach (DataRow dr in dt.Rows)
{
if (flag == false)
{
item += " where itemno='" + dr[0].ToString() + "' ";
flag = true;
}
else
{
item += " or itemno='" + dr[0].ToString() + "' ";
}

}
getData(item);

}

editing
{
this.gridview1.EditIndex=e.NewIndex;
getData(item);
}
提示 上下文中 不存在 item 应该怎么办呢

Answer 1

哎，你要想用，定义一个全局变量，就可以取得了

Answer 2

this.gridview1.EditIndex=e.NewIndex;
getData(item);
这个不在方法内啊，怎么能调？

Answer 3

删除全部代码
重写一份

Answer 4

item是局部的。。。。