我想将我的gridview绑定到我的数据源SQL查询。我试过了,但它给了我一个错误。我在我的where
查询中使用我的登录ID作为select
子句。这是我的代码:
string user;
protected void Page_Load(object sender, EventArgs e)
{
Label1.Text = Session["unm"].ToString();
user = Label1.Text;
Response.Write(user);
string queryString = "Select * from FILE_INFO WHERE ALLOCATED_TO = " + user + "";
DataSet ds = GetData(queryString);
if (ds.Tables.Count > 0)
{
GridView1.DataSource = ds;
GridView1.DataBind();
}
else
{
Response.Write("Unable to connect to the database");
}
}
DataSet GetData(String queryString)
{
string connectionString = @"Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\Database.mdf;Integrated Security=True;User Instance=True";
DataSet ds = new DataSet();
SqlConnection con = new SqlConnection(connectionString);
SqlDataAdapter adapter = new SqlDataAdapter(queryString, con);
adapter.Fill(ds);
return ds;
}
它在此行给出了一个无效列异常:
adapter.Fill(ds);
有人能告诉我哪里出错了吗?
答案 0 :(得分:0)
验证您的数据网格是否已将“AutogenerateColumns”属性设置为“true”
答案 1 :(得分:0)
问题是这个语句,你错过了字符串值的单引号,并用这个语句替换了这个语句......
string queryString = "Select * from FILE_INFO WHERE ALLOCATED_TO = '" + user + "'";