我有这个aspx
代码,我很困惑asmx.cs
代码。级联DropDownList与存储过程
ASPX:
<div class="col-md-6">
<asp:DropDownList ID="ddlMake" runat="server" CssClass="form-control"></asp:DropDownList>
<ajaxToolkit:CascadingDropDown ID="cdlMake" TargetControlID="ddlMake" PromptText="Select Make" PromptValue="" ServicePath="CascadingDropdown1.cs.asmx" ServiceMethod="GetMakes" runat="server" Category="MakeId" LoadingText="Loading Make..." />
</div>
<div class="col-md-6">
<asp:DropDownList ID="ddlModel" runat="server" CssClass="form-control"></asp:DropDownList>
<ajaxToolkit:CascadingDropDown ID="cdlModel" TargetControlID="ddlModel" PromptText="Select Model" PromptValue="" ServicePath="CascadingDropdown1.cs.asmx" ServiceMethod="GetModels" runat="server" Category="ModelId" ParentControlID="ddlMake" LoadingText="Loading Model..." />
</div>
,我有一个名为Stored Procedure
和Search_MAKE
和Search_MODEL
模型SP需要的参数。
有人可以帮我构造asmx.cs
的代码。
UPDATE:
[ScriptService]
public class CascadingDropdown1 : System.Web.Services.WebService
{
[WebMethod]
public CascadingDropDownNameValue[] GetMakes(string knownCategoryValues)
{
string query = "exec spIBCInventorySearch_MAKE @IDCustomer = 253433";
List<CascadingDropDownNameValue> Makes = GetData(query);
return Makes.ToArray();
}
[WebMethod]
public CascadingDropDownNameValue[] GetModels(string knownCategoryValues)
{
string make = CascadingDropDown.ParseKnownCategoryValuesString(knownCategoryValues)["MakeId"];
string query = string.Format("exec spIBCInventorySearch_MODEL @VehicleMake = {0}, @IDCustomer = 253433 ", make);
List<CascadingDropDownNameValue> Models = GetData(query);
return Models.ToArray();
}
private List<CascadingDropDownNameValue> GetData(string query)
{
string conString = ConfigurationManager.ConnectionStrings["UID=pal;Password=123;DATABASE=ATDBSQL;"].ConnectionString;
SqlCommand cmd = new SqlCommand(query);
List<CascadingDropDownNameValue> values = new List<CascadingDropDownNameValue>();
using (SqlConnection con = new SqlConnection(conString))
{
con.Open();
cmd.Connection = con;
using (SqlDataReader reader = cmd.ExecuteReader())
{
while (reader.Read())
{
values.Add(new CascadingDropDownNameValue
{
name = reader[0].ToString(),
value = reader[1].ToString()
});
}
reader.Close();
con.Close();
return values;
}
}
}
}
我刚拍完的asmx
代码,但它会在conString
部分断裂。有人可以帮我调试这个问题吗?
从哪里得到'ApiConnectionString'先生? @qamar –
您需要在您的web.config文件部分中设置连接字符串。用你的我的价值取代。在你的代码中,你可以使用你设置的键检索连接字符串,在我们的例子中,“YouConnectionString”我希望这有意义 –
qamar
谢谢先生。修复连接字符串部分后,还有更多问题。这也将打破在'values.Add(新CascadingDropDownNameValue { 名=阅读[0]的ToString(), 值=读卡器[1]的ToString() });' –