I have two dropdownlist in cascading working, in my file file.aspx, all work good.the selected values from cascading dropdownlist bind my repeater. when select item inside repeater redirect me to second.aspx. when comeback to first.aspx i lose all selected values in cascading dropddowlist and also values in repeater.
View 1 RepliesI am referring to following line from this link [URL] ....
data 'continentId ' 'ddlContinents.ClientID'.val ''
In your code. i tried using this code and facing a tiny problem. In above mentioned code 'ddlContinents.ClientID'.val stores integer value in contentId for obvious reasons but the requirement of my code is different. i want to pass text which is selected instead of id no.for example if mumbai is listed as second option and i select mumbai it should store mumbai in contentId instead of 2 i.e. integer value.
I am trying to get two cascading dropdownlist to work but cannot get either to populate. How do I de-bug this? I'm not getting any errors, just blank dropdowns.
I've been trying to fill in webservice from SQL Server. But in-case this was the problem. I found an example on this site to fill with test values, but this still does not work. Since I cannot even get first to populate, to simplify I'm just giving code for first dropdown and its function(s)
[code]....
I am trying to select some data with dropdown lists which are related.
I select one of selection in dropdownlist1. After that, when my page reloads, dropdownlist2 is filled with table name which i am trying to get data from. (TBLYETKILI)
My code is below..
For dropdownlist1:
[Code]....
For dropdownlist2:
[Code]....
Also I am calling these functions as follows:
[Code]....
I think this needs to be a sticky since this is not solved anywhere that I have been looking... I have been googling this for a while now and came across the answer by shear luck and a simple typo when I was writing the code...
Problem: I have 2 dropdown lists...
ddllist1 and ddlist2... Both are code-behind populated via a sql DB.
they are cascading lists via the ajax control.
I am trying to dynamically populate them with values from a DB for edit reasons.
When I try to get them populated I kept getting the error...
"dropdownlist has a SelectedValue which is invalid because it does not exist in the list of items"
Solution:
1) get the values from the DB or from where ever...
2) create a sql select to get the values from the ddl db
3) set the ID of the first DDL control to cddcontrol1.SelectedValue = id (this is a number)
4) set the value of the DDL to the string value ddlist2.SelectedValue = value (this is a string)
here is the code.
[Code]....
I would like to populate Cascading DropDownList From SQL Server.
I prepare my project the same way as in this article: [URL] ....
But all the time I have "Method error 500" I read many articles how to solve this issue but without success.
Below there are my codes:
----SQL DB has two tables:
1.tblUAP (UAP (PK), Start_Date,End_Date)
2.tblGAP(idGAP (PK),GAP,UAP(FK to tblUAP))
---project1.aspx
<%@ Page Language="C#" EnableEventValidation="false" AutoEventWireup="true" CodeBehind="Project1.aspx.cs" Inherits="TEST.Project1" %>
<%@ Register assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" tagprefix="asp" %>
....
<asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">
</asp:ToolkitScriptManager>
[Code].....
----Services.asmx
using System;
using System.Web;
using System.Web.Services;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
[Code] ....
What else Can I check ??
I am dealing with a problem that i have to make decision based on the number of items in a cascading dropdownlist. unfortunately this ajax toolkit control does not expose a Items collection.how do i count the number of items in this control ?
View 1 RepliesI'm wanting to maintain the dropdownlist values that were selected when i use postbackurl with a button. They cascading dropdowns are on a masterpage in an accordion pane. I select the 3 vales in the ddl and then presss a button which redirects to the new content page.
I've been able to get the values using previousPage.master.fincontrol... but am then setting the selectedValue in the page_init of the conent page, but they aren't set when the page loads... does anyone know where to put the code to set the values?
Now i'm working on the cascading dropdownlist for to bind a country and city, city is based on country dropdownlist. its working well , if city comes more than 8000 records in city dropdownlist , takes more to bind city.
View 1 RepliesI really have no idea on this problem on the cascading dropdownlist. I have a cascading dropdownlist that bind with calling the web services.
I wan to do a autopostback to get the value of the Album GUId so that i can query out all the photo list of that album. it is working well if my page without the AlbumGUId query string.
my problem is:
when i redirect from other page and passing the Album GUId querystring to this page, it will display all my photo for this album guid. but when i change the album to Select which should be able to display all the Photos, it cannot display out. It only will work is when i choose another album and then go back to Select then it only can work..
[code]....
I'd like to set the selected value of cascading dropdownlist by reading from a Textbox.Text value when the dropdownlist has been populated, is this possible?
View 3 Repliesat last project i need to deploy cascading dropdownlist without using web serive or cascadingDropDownList Extender
i try to do this using updatepanel :D this work , but at many times that apear my computer and my internet Explorer as busy and hang and i can not do any thing untill populate the second dropdownlist :(
is there any way to avoid that and to view a wait message until populate the second dropdownlist , i mean is there a sample code for doing that
here is my code
[Code]....
i can populate cascading dropdownlist by using webservice now. but may i know how do i trigger function while selectedindex changed? (without using auto postback...)
View 3 RepliesI want to add items to a dropdownlist with values return by a webservice which will be called from javascript without cascading extender...
View 3 RepliesI have 3 Dropdownlist
1-DDlcity 2-DDlRegion 3-DDlDistrict
and below is House_info table
district region city Id can
1 Canada
1 Lon
1 London
2 Ita
2 Canada
3
Now when I select city from DDlcity after that select region from DDlregion according to my selected item from DDlcity and DDlregion it bind DDlDistrict... before I used OnselectedIndexChange below is SP...
ALTER procedure [dbo].[SelectِDistrict]
@Region NVARCHAR(30),
@city NVARCHAR(40)
[Code] ....
It worked correctly but now I use cascadingdropdown list
[WebMethod]
public CascadingDropDownNameValue[] GetDistrict(string knownCategoryValues)
{
string region = CascadingDropDown.ParseKnownCategoryValuesString(knownCategoryValues)["Region"];
string query = string.Format("SELECT District FROM District WHERE Region = N'{0}'", region);
[Code] ....
problem is that when I select city=canada then region=1 I want it bind in DDldistrict =can but here it show in DDLdistrict can and Lon
here it just select district that region=1 it doesn't attention to city selected Item I want it do like SP that I used...
I wan to do a required field validation for the cascading dropdownlist . When my page first load out the validator is fired first in the google chrome, the callout extender message is prompt out first in the Google Chrome. I have tested the code in IE and safari, this two browsers never prompt out the validator callout first when the page is loaded.
i wonder why the google chrome will prompt out the validator when i validate the cascading dropdownlist. I have did some research on it, but failed to get any solution.
Have spent hours trying to create a Dynamic Data Field Template holding a DropDownList which is extended by the AJAX Cascading DropDown extension.Final form holds multiple cascading dropdown boxes. User selects Country (Land) then Postcodes, Counties (Provincie) are populated. Once postcode is selected then towns (Plaats) are populated. The problem I am now facing is that the viewstate for the dropdown lists is not being saved/restored after an insert action or custom validation error. So basically the dropdown lists are being reset to their default values.Some code (if missing parts, just ask and I will post them) - Don't mind the code structures etc... needs some refactoring :)Attribute I created:
[Code]....
KlantMetaData (=> Klant is Dutch for Customer ):
[Code]....
DynamicDropDownList Control I created:
[Code]....
Dynamic FieldTemplate created for inserts:
[Code]....
EntityTemplate I created:
[Code]....
Webservice methods created:
[Code]....
Code in masterpage:
[Code]....
I really have a big problem(stuck) with two dropdownlists inside a detailsview.I have 4 detailsview : DdlRt,DdlRt2,ddlMobv1,ddlMobv2. Basically what happens here is that DdlRt2 gets populated when DdlRt is selected and ddlMobv2 gets populated when a specific value from ddlMobv1 is selected.
In code posted above the detailsview has a "Update" command and the problem is when the update command is executed the data is successfully posted to the db BUT! THE VALUES from DdlRt2 and ddlMobv2 dissapear! And I can't insert any more Items. The only Item that stays in these two dropdownlists is the default "Select Department" item which is't set in codebehind but is set in .aspx.....I can't figure what I'm doing wrong here It must be something with databinding & events.
So my question is "Why can't I insert any more items to these two dropdownlists after the "Update" command on the DetailsView is set or how can I preserve the values that are already in"?
<asp:DetailsView ID="DetailsView1" runat="server" AutoGenerateRows="False" DataSourceID="odsRegister"
DefaultMode="Edit" Height="50px" Width="125px" > [code]....
I am having two dropdownlist in my project,one dropdownlist for empid, another dropdownlist for month, if the user select the empid, the values are retrieved in the textbox.
In the second dropdownlist, if the user select the month in the dropdownlist it will display the leave details, its all working fine, if the user again select the first dropdownlist that means empid, I want to show the second dropdownlist as select month, how can do this.....
i have 3 drop down list in my page
1-ddlzone1
2-ddldistrict1
3-ddlstore1
this is ddlzone1 code
protected void DDLzone1_SelectedIndexChanged(object sender, EventArgs e) {
DDLstore1.Items.Clear();
DDLstore1.Items.Add(new ListItem("select center", ""));
DDLstore1.AppendDataBoundItems = true;
SqlCommand _cmd = new SqlCommand("selectcenter", _cn);
[CODE].....
I am making an application that deals with vehicles. I need two DropDownLists:
Makes: All Vehicle Makes
Models: Models that belong to the selected value of the Make DropDownList
How is this done in MVC2? My Idea: Do I use an ajax call when my first list is selected and then pull back the Models to bind to the Model DDL? How would model binding come into play that way? UPDATE I posted what I ended up doing as an answer. It is super simple and works great. You can use a get too if you feel so inclined, but you have to specify that you want to like so... return Json(citiesList, JsonRequestBehavior.AllowGet);
Article located here: [URL] ... Code is simple, straightforward (especially with the stored procedure piece). I customized the code a bit to fit my requirement and it works great.
I would like to know if you can give me a hint on how to do the following:
My dropdownlist has 10 listitems. 7/10 works fine because they populate data from the db. However, there are 3 listitems that link to external sites and they have nothing to do with the db.
I have something in mind but I am not sure if it works or not. What I have in mind is I need to write some script:
In the web page, I need to use SelectedIndexChanged even
In the code-behind, I need to write something like this:
If listitem value = 'yahoo' then 'www.yahoo.com else if listitem value = 'google' then 'www.google.com else URL
I have a user control that has some drop down lists. These DDLs are used by the user to filter their product search on my search page. A button is used to post the form and get the results of the product search. Those results are displayed on the results page, which also has the search filter user control on it. I'd like the results page to have the values of the DDLs be preserved from the search page. Example: user selected color of red and size of large on the search page. When the results page is displayed, I'd like the selected color to be red for the color DDL and the size to be large for the size DDL. How can I do this?
View 9 RepliesI have a page that has a cascading drop down. It works perfectly when I start with an empty page and populate data to save a new row in a db table. However, when I try to load an existing row to the page, the parent is populated, but the child and cdd are not populated. During the load, I set the ccd.selectedvalue to a valid value, but by the time the page is rendered, there is no selection. I am sure it is something simple, but just don't see it.
View 2 RepliesI have a dropdown populated with data , based on a true / false condition i change the dropdown item color when dropdown gets loaded initially the item color are proper based on condition. but if i select a particular item & then again click on dropdown the item color disappear show to retain the item color.
View 1 Replies