Question

我的页面加载代码：

  if (!IsPostBack)
        {
            base.PageLoad();
            GetReqPndActTknByMe(base.LogShortID);


            radSLA.DataBind();
            radSLA.SelectedValue = "Yes";
            BindDataToDropdownListAction();
            ucEmployeeDetails.BindDataToCountryDropdownList();
            ucVisaDetails.BindDataToVisaTypeDropdown();
        }

我使用以上两种方法将我的下拉值绑定到用户控件。

但是，当点击提交以批准请求时，我的值将设置为默认值：

  protected void btnSubmit_Click(object sender, EventArgs e)
    {
        try
        {
            string requestID = txtRequestID.Text;
            string reqStatus = txtStatusID.Text;
            string actTypeID = ddlAction.SelectedValue;
            int reqType = 40001;


            BVTBusiness.PendingInviteLetter busAction = new CSCI.Portal.Business.VisaTracking.PendingInviteLetter();
            BVTEntity.BusinessVisaRequest entRequest = new CSCI.Portal.Entity.VisaTracking.BusinessVisaRequest();



            entRequest.RequestID = requestID;
            entRequest.ApproverShortID = base.LogShortID;
            entRequest.ActionTypeID = actTypeID;

            if (reqStatus == Constant.WF_STATUS_PEN_WITH_HOME_CM)
            {
                if (actTypeID == "20005" || actTypeID == "20003")
                    entRequest.ApprovalComments = txtActionComments.Text;
                else
                    entRequest.ApprovalComments = "Service Agreement Applicable : " + radSLA.SelectedValue + "       Remarks : " + txtActionComments.Text;
            }

            if (reqStatus == Constant.WF_STATUS_PEN_WITH_OGM)
            {

                if (actTypeID == "20005" || actTypeID == "20003")
                    entRequest.ApprovalComments = txtActionComments.Text;
                else
                    entRequest.ApprovalComments = "Service Agreement Applicable : " + radSLA.SelectedValue + "       Remarks : " + txtActionComments.Text;
            }
            if (reqStatus == Constant.WF_STATUS_PEN_WITH_HOST_CM)
            {

                if (actTypeID == "20005" || actTypeID == "20003")
                    entRequest.ApprovalComments = txtActionComments.Text;
                else
                    entRequest.ApprovalComments = "Service Agreement Applicable : " + radSLA.SelectedValue + "       Remarks : " + txtActionComments.Text;
            }


            if (string.IsNullOrEmpty(entRequest.ActionTypeID))
            {
                //base.ShowErrorMessage(objLookup.GetMessageInformation(2121).MessageText);
            }
            else
            {

                BVTEntity.BusinessVisaRequest entRetRequest = busAction.SaveApproverActnTkn(entRequest);
                string requestXML = entRetRequest.RequestXML;
                pnlAction.Visible = false;

                BindGrid(requestXML);

                if (actTypeID == "20005")
                {
                    base.ShowMessage("Request Rejected Successfully", Constant.T_INFORMATION);
                }
                else if (actTypeID == "20004")
                {
                    base.ShowMessage("Request Approved Successfully", Constant.T_INFORMATION);
                }
                else if (actTypeID == "20003")
                {
                    base.ShowMessage("Request Send back Successfully", Constant.T_INFORMATION);
                }

            }
        }
        catch (Exception ex)
        {
            base.ShowErrorMessage(ex.Message);
        }
    }

批准后输出

：

enter image description here

我的绑定功能：

   public void BindDataToCountryDropdownList()
    {
        BVTBusiness.EmployeeDetails busRequest = new BVTBusiness.EmployeeDetails();
        string countries = busRequest.GetCountries();

        if (string.IsNullOrEmpty(countries))
        {
            countries = "<ITEMS><ITEM CODE=\"0\" CDDesc=\"" + Constant.T_FLDDROP_INTIALTEXT + "\"/></ITEMS>";
        }
        else
        {
            string firstNode = "<ITEMS><ITEM CODE=\"0\" CDDesc=\"" + Constant.T_FLDDROP_INTIALTEXT + "\"/>";
            countries = countries.Replace("<ITEMS>", firstNode);
        }

        dscountrylist.Data = countries;

        ddlTravelFrom.DataBind();
        ddlTravelTo.DataBind();
        ddlCountry.DataBind();
    }

Answer 1

你绑定了pageload的下拉列表吗？我以前多次遇到过这个问题很多次，我从来都不知道它为何被解决了。请尝试以下方法检查它是否有所作为。

    ddlProgrammeYear.EnableViewState = true;

否则，我真的会要求你彻底调试它，看看下载时间是什么时候填充了它的值。还要检查一下，看看你是否遗漏了什么： http://msdn.microsoft.com/en-us/library/ms178472.aspx

让我知道它是怎么回事。

我从用户控件绑定的下拉值是在按钮单击事件后设置默认值

1 个答案: