下拉列表框 [英] for dropdown list box
本文介绍了下拉列表框的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
亲爱的朋友，
我的网络表单上有两个dropdowlist.与第一个相关的第二个下拉列表.
当我选择第一个下拉列表(例如(型号))时，第二个下拉列表将填充零件列表.
在IE中工作正常.但是在mozila中失败了.
我在更改事件上使用Java脚本和数据库.
我在pageload上使用过
此代码
Dear friends,
i have a two dropdowlist on my webform. 2nd dropdownlist related to first.
when i select first dropdownlist such as (model no) then 2nd dropdownlist get populated with partlist.
It works fine in IE. but failed in mozila.
i am using java script and database on change event.
i have use on pageload
this code
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
sessionContactID = Session("sessionContactID")
If sessionContactID > 0 Then
sessionUserTypeID = Session("sessionUserTypeID")
sessionLocationID = Session("sessionLocationID")
sessionLocationTypeID = Session("sessionLocationTypeID")
ListType = IIf(Session("ListType") IsNot Nothing, Session("ListType"), 0)
If Not IsPostBack Then
ddlModels.Attributes.Add("onchange", "return BindSparesCode(this,'" & ddlSpareParts.ClientID & "');")
ddlModels.DataSource = objDBModels.GetModelNos()
ddlModels.DataBind()
ddlSpareParts.DataBind()
txtDay.Attributes.Add("onkeyup", "return Validate_Date(this,'dd','" & txtMonth.ClientID & "','" & txtYear.ClientID & "');")
txtMonth.Attributes.Add("onkeyup", "return Validate_Date(this,'mm','" & txtDay.ClientID & "','" & txtYear.ClientID & "');")
txtYear.Attributes.Add("onkeyup", "return Validate_Date(this,'yyyy','" & txtDay.ClientID & "','" & txtMonth.ClientID & "');")
optDeliver.Attributes.Add("onclick", "return OptionsRO_Clicked('Deliver','" & tblParts.ClientID & "','" & tblAddParts.ClientID & "','" & btnCreate.ClientID & "')")
optOrderParts.Attributes.Add("onclick", "return OptionsRO_Clicked('OrderParts','" & tblParts.ClientID & "','" & tblAddParts.ClientID & "','" & btnCreate.ClientID & "')")
btnCreate.OnClientClick = "return ValidateList('" & tblParts.ClientID & "' ,'" & tblPurchasedlocally.ClientID & "','" & lblErrorMsg.ClientID & "');"
cmbCreate.OnClientClick = "return ShowConfirmBox('" & pnlConfirmBox.ClientID & "', '" & lblMessage.ClientID & "', '" & hdnAction.ClientID & "');"
btnNo.Attributes.Add("onclick", "document.getElementById('" & pnlConfirmBox.ClientID & "').style.display = 'none'; return false; ")
If Session("ControlToLoad") IsNot Nothing Then
objCTL = Session("ControlToLoad")
If objCTL.ParameterCollection.ContainsKey("OrderNo") Then
OrderNo = objCTL.ParameterCollection.Item("OrderNo")
hdnOrderNo.Value = OrderNo
If objCTL.ParameterCollection.ContainsKey("Action") Then
Action = objCTL.ParameterCollection.Item("Action")
End If
End If
End If
tblAddParts.Style.Item("display") = "none"
If ListType > 0 And Action = String.Empty Then
tblAddParts.Style.Item("display") = "block"
End If
Select Case ListType
Case OrderType.Purchased
lblQTy.Text = "Qty"
lblHeader.Text = "Purchased (Part List)"
tblPurchasedlocally.Style.Item("display") = "block"
btnCreate.Text = "Submit"
hdnAction.Value = "Purchased_Cannibalize"
Case OrderType.Ordered
lblQTy.Text = "Ordered"
lblHeader.Text = "Order (Part List)"
hdnAction.Value = "CreateList"
Case OrderType.Delivered
txtQty.Attributes.Add("onkeyup", "return LessThanQtyInStock(this,'" & hdnQtyInStock.ClientID & "');")
ddlSpareParts.Attributes.Add("onchange", "return QtyInStock(this,'" & hdnQtyInStock.ClientID & "');")
lblQTy.Text = "Delivered"
lblHeader.Text = "Deliver (Part List)"
hdnAction.Value = "CreateList"
Case OrderType.Cannibalized
lblQTy.Text = "Qty"
lblHeader.Text = "Cannibalized (Part List)"
btnCreate.Text = "Submit"
hdnAction.Value = "Purchased_Cannibalize"
End Select
Select Case Action
Case "Disable", "Purchased", "Cannibalized"
btnCreate.Visible = False
Case "ToBeDelivered"
btnCreate.Text = "Deliver"
hdnAction.Value = "DeliverList"
tblDeliveryType.Visible = True
Case "ToBeReceived", "Received"
If ListType = OrderType.Delivered Then
tblReceiveParts.Style.Item("display") = "none"
tblParts.Style.Item("display") = "block"
Else
tblReceiveParts.Style.Item("display") = "block"
tblParts.Style.Item("display") = "none"
End If
btnCreate.Visible = False
hdnAction.Value = "ReceiveList"
Case "Edit"
btnCreate.Text = "Update List"
hdnAction.Value = "UpdateList"
tblAddParts.Style.Item("display") = "block"
Case "Create"
btnCreate.Text = "Create List"
hdnAction.Value = "CreateList"
tblAddParts.Style.Item("display") = "block"
End Select
If sessionLocationTypeID = LocationType.RO And Action = "ToBeDelivered" Then
divOptions.Style.Item("display") = "block"
spanOptionsRO.Style.Item("display") = "block"
End If
If Session("ControlToLoad") IsNot Nothing Then
Session("PartsList") = objDB.GetInventory_Orders_PartList(OrderNo, sessionLocationID)
LoadList()
LoadParts()
If Action = "Purchased" Or Action = "Cannibalized" Then
DisableALL()
End If
Else
Session("PartsList") = Nothing
End If
End If
btnAdd.Attributes.Add("onclick", "javascript:return AddRow('" & ddlModels.ClientID & "', '" & ddlSpareParts.ClientID & "', '" & txtQty.ClientID & "', '" & tblParts.ClientID & "');")
Else
Response.Redirect("~/Login.aspx")
End If
End Sub
和Java脚本
< ------------------------------------------------ --------- java>
and java script
<---------------------------------------------------------java>
function BindSparesCode(obj, ddl) {
var objDDL = document.getElementById(ddl);
if (obj.options(obj.selectedIndex).value != 0) {
PageMethods.GetSparesCode(obj.options(obj.selectedIndex).value, CallSuccess_SparesCode, CallFailed_SparesCode, objDDL);
}
else {
Remove_InsertDDL(objDDL)
}
return false;
}
function CallSuccess_SparesCode(res, destCtrl) {
var strArray = new Array(200);
strArray = res.split(";");
var objDDL = destCtrl;
Remove_InsertDDL(objDDL)
if (strArray.length > 1) {
for (i = 0; i < strArray.length; i = i + 2) {
var optn = document.createElement("OPTION");
objDDL.options.add(optn);
optn.text = strArray[i];
optn.value = strArray[i + 1];
}
}
}
有什么提示吗?
感谢advnace
any hint ?
thanks in advnace
推荐答案
您好
请尝试使用CSS样式的Z-Index.
Hi
Please try Z-Index in css Style.
您是否为此使用了AJAX?
您能发布您的代码，以便我们为您提供帮助吗?
Have you use AJAX for that ?
can u post your code so that we can help you
您为此使用了什么?
尝试CascadingDropDown
http://www.asp.net/ajax/ajaxcontroltoolkit/samples/CascadingDropDown/CascadingDropDown.aspx [ ^ ]
What did you use for that?
TryCascadingDropDown
http://www.asp.net/ajax/ajaxcontroltoolkit/samples/CascadingDropDown/CascadingDropDown.aspx[^]
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