AJAX :: Cascading Dropdown And Passing Querystring To Webservice?
Oct 22, 2010
i am using Cascading dropdown, with following scenario.a page "myPage.aspx" is loaded with a Querystring. [http://localhost/myVD/myPage.aspx?jobID=003]this page contains 2 cascading dropdowns say state & City . the idea is to fill the provinces Combo based on INCOMING querystring value "jobid".also i have a webservice named "Mywebservice.asmx" which has webmethods to retrieve city based on jobID.but since these webmethods are Contained in asmx . the querystring of the caller page is not visible to the webmetod of the service.
public CascadingDropDownNameValue[] GetContainerByJobID(string knownCategoryValues, string category
)
{
I ultimately need to show countries in one drop down then states/provinces drop down of the previously selected drop down. I'm sure everyone has seen this many times. My page shows the countries but does not show values in the province/states drop down. It's as if the webservice is never run. I've tried removing and adding the ajaxtoolkit reference. The tableadaters run simple working sql code. I'm really at a lose here.
default.aspx: ... <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxToolkit" %> ... <body> <form id="form1" runat="server"> <asp:ScriptManager ID="ScriptManager1" runat="server" /> <%--Dropdown to display countries--%> Country:<asp:DropDownList ID="ddlCountries" runat="server" DataSourceID="ods_Countries" DataTextField="country" DataValueField="abbreviation"> </asp:DropDownList> <%--data source for the country drop down list--%> <asp:ObjectDataSource ID="ods_Countries" runat="server" OldValuesParameterFormatString="original_{0}" SelectMethod="GetAllCountries" TypeName="countryDataSetTableAdapters.CountriesTableAdapter"> </asp:ObjectDataSource>....................................
Setup: I have a RadioButtonList with two listitems (One Street, the other Schools). These define what type of search I want. I textbox with associated autocomplete. First you select which search to complete, and then start typing and the autocomplete will make . Autocomplete goes out to ashx webservice which pulls a list from the database.
I have tested the webserver and it works properly, so I'm thinking the problem is with my jQuery UI autocomplete. <div id="divSelectOne" style="padding:8px 3px 8px 3px; border-bottom:1px dotted #cccccc; background:#f9f9f9;"> <span style="font-weight:bold; color:#369;">Select One:</span><br /> <asp:RadioButtonList ID="radSelect" runat="server" RepeatDirection="Horizontal"> <asp:ListItem Text=" Street, City, Zip or Subdivision" Value="Street" Selected="True"></asp:ListItem> <asp:ListItem Text=" School" Value="Schools"></asp:ListItem>
This has totally spoiled my .net 4 vs2010 realease day happiness. Running Cascading dropdowns using 'webservice' asmx method. Everything worked on .3.5 and i solved the running 'code In page' method with this post. Method error 500 [URL] Thought I was sorted but seems the rules are totaly different for the 'webservice method'. For example where did ToolkitScriptManager come from Ive been using ScriptManager for years. Anyway below is the Webservice and Page code. Ive looked at and tried everything of the forum but all of it is pre .4. This is demo code, the real version has 3 dependant dropdowns and the lookups are used several times so it HAS to be a webservice. My current theroies are:
1. Permissions- dosent makes sense. 2. Something missing in web.config to enable webservices. 3. Something to do with placement of 'System.Web.Script.Services.ScriptService()>'
I tried cascading dropdown in asp.net using ajax. I have tried with 3 dropdown control. The scenario is First dropdown is loaded when page gets loaded and the second dropdown is loaded based on first is selected and thrid dropdown is loaded based on second one selected, now I want to know how do I load third dropdown based on first and second selected value...
and this aspx page [Code].... perhaps i followed this example here http://programming.top54u.com/post/AJAX-Cascading-Dropdown-Example-using-SQL-Database.aspx
it return an error that System.InvalidCastException: unable to cast di object of 'AjaxControlToolkit.CascadingDropDown' on tye 'System.Web.UI.WebControls.DropDownList'.
Suppose parent dropdown is car (Values are car1, car2, car3)and its child is color(for car1 R Y G B, For car2 R Yand for car3 G B).Now on selection of car2 R and Y will appear and select R, then again made the change on car and select car3 then again select is comiing with G and B and select B.
Now if I select again in car, car1 then the child is populating with the values of car1 but it takes the B as a default value as it was previously selected and also present for car1 too.This case is only happen. on select of child value which is availble for both parent selection.
I have a cascading dropdown which is dynamically created and does a postback based on a certain condition. How do i set the selected value after the postback
I am using Cascading Dropdown nad would be populating the values of the second dropdown from the session thats created when the page load.With the initial page load, the cascading dropdown works fine. But when I change the selection for the first one, the session values are not retained.
I have been trying to make a cascading drpdown using ajax using this link [URL] But m nt getting a clear picture abt it.. I have a table 'car' with fields of 'id','make','model','color'. I have 2 dropdowns on my form for make & model.I want to populate the model dropdown using the make dropdown but without postback.Till nw I have tried this :-
using System; using System.Web; using System.Collections; using System.Collections.Generic; using System.Collections.Specialized; using System.Web.Services; using System.Web.Services.Protocols; using AjaxControlToolkit; using System.Data; using System.Data.SqlClient; using System.Configuration; //using System.Web.Script.Services.ScriptService;.............................
I have a user control in which i have implemented Cascading dropdown. It works perfectly fine in IE but doesnt in Firefox. I am using webservice to get my data for the dropdowns.
I am binding the dropdownlist by using ajax cascading drop down now i need to preselect the dropdown value in code behind page in page load (for update operation) is it possible
I am new to Ajax Control Toolkit, with the help of online tutorials I had created a cascading dropdown list in asp.net and tested it on my local machine. For this dropdown list data source would be an xml file (which is saved on my local machine c drive). I haven't encountered any issues until I deploy the precompiled web site on to IIS 7. When I open the web site from IIS I would see the two dropdown boxes on the web page with an error "Method error 500". I believe this error occured due to incorrect xml file path provided on IIS. I had copied xml and xsd files into IIS server C drive but it did not help out and then I created a network map and placed the xml and xsd files in that shared folder tried to access that path from web service, it's working on local machine but not on IIS. It would be great, if any one could explain me the solution.
I have 3 dropdown lists. All 3 are using the same generic list for there items. I am using C# as the code behind. The code below shows the DTO list i am using and how I'm adding them to the drop downs...
I want to populate the cascading Dropdown values without Promttext.
Scenario is .If a single value is retrived from the database then I think no need to populate the promt text. It may populate only that value and call the next function from the inside of it. Can it be possible using web methods.
I am new to using Ajax Control toolkit. I need to create a dynamic cascading dropdowns in which the no of dropdowns will be programatically decided. Also the last dropdown can be replaced with a listbox as well. how i can leverage the Ajax toolkit's cascading dropdown.
I have 3 cascading dropdowns in a user control. I am trying to clear off the values of the dropdowns on the click of the clear or cancel button on the page. I am setting the value as selected index as 0 but the last dropdown never gets disabled. How do i achieve that. Is there a way that i can set only the first dropdown and the rest of the dropdowns get disabled.
Bit of a strange request but is it possible to set the selected value of a cascading dropdown in code? I have 2 dropdowns, the second is populated using the value of the first. Heres my markup:
I have a RadioButtonList and two cascading dropdown linked to corrspoding dropdown control. Based on radiobutton's selection, the cascading will be prepopulated with some values and one value is selected in both dropdown.
I want to disable the cascading dropdown/dropdown after values are filled and selected on selection of radiobutton selected in RadioButtonList.
I tried to disable it, but in that case dropdown is getting empty.
