ConnectionStrings：HRSystemDataBaseConnection％> SelectCommand = SELECT APP_CompaniesCommercialActivities.ID，APP_CommercialActivities.CommercialActivityEnglishName FROM APP_CompaniesCommercialActivities INNER JOIN APP_CommercialActivities ON APP_CompaniesCommercialActivities.CommercialActivityID = APP_CommercialActivities.ID WHERE（APP_CompaniesCommercialActivities.CompanyID = @CompanyID）ORDER BY APP_CommercialActivities.CommercialActivityEnglishName>
< SelectParameters>
< asp：SessionParam eter Name = CompanyID SessionField = CompanyID />
< / SelectParameters>
< / asp：SqlDataSource>

< asp：SqlDataSource ID = SqlDataSource_Company runat = server ConnectionString = <％

ConnectionStrings:HRSystemDataBaseConnection %>" SelectCommand="SELECT APP_CompaniesCommercialActivities.ID, APP_CommercialActivities.CommercialActivityEnglishName FROM APP_CompaniesCommercialActivities INNER JOIN APP_CommercialActivities ON APP_CompaniesCommercialActivities.CommercialActivityID = APP_CommercialActivities.ID WHERE (APP_CompaniesCommercialActivities.CompanyID = @CompanyID) ORDER BY APP_CommercialActivities.CommercialActivityEnglishName"> <SelectParameters> <asp:SessionParameter Name="CompanyID" SessionField="CompanyID" /> </SelectParameters> </asp:SqlDataSource> <asp:SqlDataSource ID="SqlDataSource_Company" runat="server" ConnectionString="<%

ConnectionStrings：HRSystemDataBaseConnection％>
SelectCommand = SELECT ID，CompanyName FROM APP_Companies ORDER BY CompanyName />

ConnectionStrings:HRSystemDataBaseConnection %>" SelectCommand="SELECT ID, CompanyName FROM APP_Companies ORDER BY CompanyName" />

和代码隐藏是

and codebehind is

protected void cmb_company_SelectedIndexChanged(object sender, RadComboBoxSelectedIndexChangedEventArgs e)
{
	Session["CompanyID"] = e.Value;
}

当我更改公司时，会话值已更改，并且报告错误

数据绑定方法，如Eval（），XPath（）和Bind（）只能在数据绑定控件的上下文中使用。

at cmb_commercialActivity。







问候，

rafsan

when i change the company, the session value is changed, and error is reporting
"Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control."
at cmb_commercialActivity.



Regards,
rafsan

检查选中comboBox的值，

Check for selected values of comboBox,

Session["CompanyID"] = cmb_company.SelectedValue