我有一个 TabContainer 控件，其中包含多个选项卡。根据 TabContainer 的 ActiveIndex 属性，我希望单击按钮以在该选项卡中创建一个 Gridview 并将其绑定到存储过程。目前，以下代码有效，但有很多代码重复
protected void btnMakeGridView_Click(object sender, EventArgs e)
{
string cs = ConfigurationManager.ConnectionStrings["dbcs"].ConnectionString;
if (TabContainer1.ActiveTabIndex == 0)
{
using (SqlConnection con = new SqlConnection(cs))
{
using (SqlCommand cmd = new SqlCommand("spTest0", con))
{
con.Open();
cmd.CommandType = CommandType.Text;
SqlDataReader rdr = cmd.ExecuteReader();
GridView gv = new GridView();
TabContainer1.Tabs[TabContainer1.ActiveTabIndex].Controls.Add(gv);
gv.DataSource = rdr;
gv.DataBind();
}
}
}
else if (TabContainer1.ActiveTabIndex == 1)
{
using (SqlConnection con = new SqlConnection(cs))
{
using (SqlCommand cmd = new SqlCommand("spTest1", con))
{
con.Open();
cmd.CommandType = CommandType.Text;
SqlDataReader rdr = cmd.ExecuteReader();
GridView gv = new GridView();
TabContainer1.Tabs[TabContainer1.ActiveTabIndex].Controls.Add(gv);
gv.DataSource = rdr;
gv.DataBind();
}
}
}
else if (TabContainer1.ActiveTabIndex == 2)
{
using (SqlConnection con = new SqlConnection(cs))
{
using (SqlCommand cmd = new SqlCommand("spTest2", con))
{
con.Open();
cmd.CommandType = CommandType.Text;
SqlDataReader rdr = cmd.ExecuteReader();
GridView gv = new GridView();
TabContainer1.Tabs[TabContainer1.ActiveTabIndex].Controls.Add(gv);
gv.DataSource = rdr;
gv.DataBind();
}
}
}
else
{
Label1.Text = "You must select a tab to create the GridView in";
}
}
正如您所看到的，根据 TabContainer 的 ActiveIndex，应该在每个 TabPanel 内创建不同的存储过程。在我的示例中，我只使用一个数据库，因此我不必担心将连接字符串作为参数传递给要连接的数据库。乍一看，我添加了类似的东西
//pass in the connection string, the stored procedure name and the ActiveTabIndex
public static void DataAccess(string connectionString,string spName, int activeTabIndex)
{
using (SqlConnection con = new SqlConnection(connectionString))
{
using (SqlCommand cmd = new SqlCommand(spName, con))
{
con.Open();
cmd.CommandType = CommandType.Text;
SqlDataReader rdr = cmd.ExecuteReader();
GridView gv = new GridView();
gv.DataSource = rdr;
gv.DataBind();
}
}
}
UDPATE：好的，同时我想出了
public partial class _Default : System.Web.UI.Page
{
string cs = ConfigurationManager.ConnectionStrings["dbcs"].ConnectionString;
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnMakeGridView_Click(object sender, EventArgs e)
{
TabContainer1.Tabs[TabContainer1.ActiveTabIndex].Controls.Add(GetData(cs, "spTest", TabContainer1.ActiveTabIndex));
}
public static GridView GetData(string connectionString,string spName, int activeIndex)
{
using (SqlConnection con = new SqlConnection(connectionString))
{
using (SqlCommand cmd = new SqlCommand(spName, con))
{
con.Open();
cmd.CommandType = CommandType.StoredProcedure;
SqlDataReader rdr = cmd.ExecuteReader();
GridView gv = new GridView();
gv.ID = "gv" + activeIndex.ToString();
gv.DataSource = rdr;
gv.DataBind();
return gv;
}
}
}
}