儲存過程:
create procedure customer_select
@country nvarchar(15)
asselect customerid,companyname,contactname from customers where country=@country
go.aspx:
.cs:
protected void dropdownlist1_selectedindexchanged(object sender, eventargs e)
{//建立連線字串
string connstring = "data source=.;initial catalog=northwind;user id=sa;password=sa";
//建立操作物件
sqldataadapter adp = new sqldataadapter();
sqlcommand cmd = new sqlcommand();
cmd.connection = new sqlconnection( connstring);
datatable dt = new datatable();
//制定要呼叫的儲存過程名稱"customer_select";
//指定sqlcommand物件的命令型別為storedprocedure 列舉型別
cmd.commandtext = "customer_select";
cmd.commandtype = commandtype.storedprocedure;
//指定 sqlparameter物件,指定引數名稱,資料型別 長度以及引數
sqlparameter para = new sqlparameter("@country",sqldbtype.nvarchar,15);
para.value = dropdownlist1.selectedvalue;
cmd.parameters.add(para);
//關聯sqldataadapter和sqlcommand
adp.selectcommand = cmd;
adp.fill(dt);
gridview1.datasource = dt;
gridview1.databind();
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