AJAX :: How To Disable Cascading Dropdown With Selected Value
Sep 10, 2010
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.
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Mar 22, 2010
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
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May 7, 2015
<asp:DropDownList ID="ddlModuleName" runat="server" ClientIDMode="Static">
</asp:DropDownList>
<cc1:CascadingDropDown ID="cdlModule" TargetControlID="ddlModuleName" PromptText="Select Module" PromptValue="0" ServicePath="~/controls/WebService.asmx" ServiceMethod="GetModules" runat="server" Category="ModuleID" LoadingText="Loading..." />
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
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May 24, 2010
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:
<asp:DropDownList ID="ddlApplication" runat="server" CssClass="form"></asp:DropDownList>
<ajaxToolkit:CascadingDropDown
ID="cddApplication"
runat="server"
TargetControlID="ddlApplication"
Category="Application"
PromptText="[select an application]"
ServicePath="webservices/Application.asmx"
ServiceMethod="GetUserApplications" />
<asp:DropDownList ID="ddlDelegate" runat="server" CssClass="form" />
<ajaxToolkit:CascadingDropDown
ID="cddApplicationUser"
runat="server"
TargetControlID="ddlDelegate"
ParentControlID="ddlApplication"
Category="ApplicationRole"
PromptText="[select a user]"
ServicePath="webservices/ApplicationRole.asmx"
ServiceMethod="GetApplicationUsers" />
Basically I want to set the selected value of ddlApplication, then populate the ddlDelegate, then I want to set the selected value of ddlDelegate.
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Feb 9, 2011
I have a web form where I have three dropdowns for Country State And City and there corresponding
ajaxToolkit:CascadingDropDowns.
The dropdowns are working perfectly fine with the web service methods. i.e country loading initially and then State as per selected Country and City as per the selected City.
The problem occurs when I try to set selected values in these dropdowns as per the Values previously saved.
The Country loads properly and the selected value is set according.
The State is filled as per the selected country but its selected value is not set.
The City is not loaded at all (as the state doesn't have a selected value)
The Code is as Follows:
[Code]....
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Nov 10, 2010
How can i generate dropdown lists based on what has been selected in the checckbox list. Below is an example of what i need. if the user selects the options day, lotID and waferID, then 3 cascading dropdown lists should be displayed. And then a gridview displays data based on what has been chosen in the dropdown lists.
Day
LotID
SlotID
WaferID
VendorID
ToolID
LocationDetected
ProcessStep
Stage
Precipe
WaferStartMaterial
WaferStartVendor
WaferStartLot
WaferDiameterCOA
WaferMapTitle
BreakPoint
BreakpointSide
BreakpointMeasurement
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Jan 20, 2012
I am trying to get the selected text of a cascadingdropdown control. I search over web but with no luck.
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Oct 28, 2010
I have a couple of dropdownlists and a button.when a user selects an item in the 1st dropdownlist,the 2nd dropdown is programmatically bound to a set of items(using an ajax request) depending on the value selected in the 1st dropdown.Then the user will have the ability to choose an item from the 2nd dropdown and click on the button,which performs some server side opeartions and returns the results.
But if the user tries to click on the button before the 2nd dropdown list is populated,user will receive an exception message.Instead of that I would like to prevent the user from clicking the button before the ajax request is completed to populate the 2nd dropdown.I tried using Button1.Enabled=false in the selectedvaluechanged event of 1st dropdown,which does n't seem to work.
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May 6, 2010
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...
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Jul 6, 2010
i havce this web service
[Code]....
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'.
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Nov 19, 2010
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.
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Oct 28, 2010
i am going to use cascading dropdown in my project But i cant understand why it is not working let me know what i am doing wrong...
this is my aspx page,
[code]....
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Mar 15, 2010
[Code]....
Dont go away by looking a difficult probem.
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Jan 28, 2011
I want to make a cascading dropdown list without using an UpdatePanel. I need tips for starting out this task. Currently,
I am using asp.net 2.0 .Will I be able to parse JSON in VSS 2005 if I use JQuery ?
What is the recommended alternate for UpdatePanel in Visual Studio 2005 ?
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Mar 10, 2010
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.
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Jan 18, 2011
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;.............................
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Aug 17, 2010
I want to display the image before the data in the dropdown based on the data category? is it possible with cascading dropdown?
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Apr 8, 2010
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.
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Aug 27, 2010
I am having 2 web formsand will have a drop down list on those web forms. If i select a value from drop down and click on ok i will get tranfer to next page. In that page i will have a drop down with the same values in the previous form . What i need is i would like to disable the selected value in the previos form and would like to display the remaining normal
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Mar 9, 2010
I have a Gridview that has a button at the left hand side representing the row number. The Gridview has two textboxes and a dropdown listbox as templates. I would like to enable or disable the textboxes and the dropdown listbox if the row is not selected. I also need to enable or disable the templates depending on what the value is of one of the cells. When the templates are changed, I need to save the changes.
I have been able to get this working in the RowDataBound Sub but not in the RowCommand Sub when the row is selected. provide an example in VB.My current RowDataBoundSub, which does no work is below:
Protected Sub PropGrid_RowCommand(ByVal sender As Object, _
ByVal e As System.Web.UI.WebControls.GridViewCommandEventArgs) Handles PropGrid.RowCommand[code]....
My current RowDataBound Sub, which is working is below:
Protected Sub PropGrid_RowDataBound(ByVal sender As Object, _
ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles PropGrid.RowDataBound [code]....
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Jan 12, 2011
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.
Following is the .aspx and .asmx code:
.aspx code:
<form id="form1" runat="server"> <div> <asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server"> </asp:ToolkitScriptManager> <br /> <table> <tr> <td> <asp:DropDownList ID="DropDownList1" runat="server"
Height="20px" Width="257px"> </asp:DropDownList> <asp:CascadingDropDown ID="CascadingDropDown1" runat="server" Category="Category" TargetControlID="DropDownList1" PromptText="[select category]" ServicePath="~/WebService.asmx" ServiceMethod="GetCategory"> </asp:CascadingDropDown>
<br /> </td> </tr> <tr> <td> <asp:DropDownList ID="DropDownList2" runat="server" Height="20px" Width="257px"> </asp:DropDownList> <asp:CascadingDropDown ID="CascadingDropDown2" runat="server" Category="Type" TargetControlID="DropDownList2" PromptText="Select
Type]" LoadingText="Loading Type.." ParentControlID="DropDownList1" ServicePath="~/WebService.asmx" ServiceMethod="GetType"> </asp:CascadingDropDown> <br /> </td> </tr> </table> </div> </form>
.asmx code(.cs code):
[WebMethod]
public AjaxControlToolkit.CascadingDropDownNameValue[] GetCategory(string knownCategoryValues, string category)
{
XmlDocument _doc = new XmlDocument();
_doc.Load(HttpContext.Current.Server.MapPath("~/C:/ItSupportCategory.xml"));
XmlNodeList list = _doc.SelectNodes("/CategoryList/Category");
List<CascadingDropDownNameValue> categorylist = new List<CascadingDropDownNameValue>();
foreach (XmlNode node in list)
{
string catid = node.Attributes["value"].Value.ToString();
string catname = node.Attributes["name"].Value.ToString();
categorylist.Add( new CascadingDropDownNameValue(catname,catid));
}
return categorylist.ToArray();
}
[WebMethod]
public AjaxControlToolkit.CascadingDropDownNameValue[] GetType(string knownCategoryValues, string category)
{
int catID;
StringDictionary selectedvalue = AjaxControlToolkit.CascadingDropDown.ParseKnownCategoryValuesString(knownCategoryValues);
catID = Convert.ToInt32(selectedvalue["category"]);
List<AjaxControlToolkit.CascadingDropDownNameValue> cascadingValues = new List<AjaxControlToolkit.CascadingDropDownNameValue>();
XmlDocument _doc = new XmlDocument();
_doc.Load(HttpContext.Current.Server.MapPath("~/C:/ItSupportCategory.xml"));
XmlElement root = (XmlElement)_doc.SelectSingleNode("/CategoryList/Category[@value='" + catID + "']");
for (int i = 0; i < root.ChildNodes.Count; i++)
{
string typeid = root.ChildNodes[i].Attributes["value"].Value.ToString();
string typename = root.ChildNodes[i].Attributes["name"].Value.ToString();
cascadingValues.Add(new CascadingDropDownNameValue(typename, typeid));
}
return cascadingValues.ToArray();
}
Xml File:
<?xml version="1.0"?>
<CategoryList xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="test.xsd">
<Category value ="1" name="SYSTEM WIDE">
<Type value ="1" name="Email"/>
<Type value="2" name="SAP Locked"/>
<Type value="3" name="Job Archive Full" />
</Category>
<Category value="2" name="SAP">
<Type value="3" name="Pricing Incorrect"/>
<Type value="5" name="New Item #"/>
<Type value="6" name="Reports"/>
<Type value="7" name="New User Setup"/>
</Category>
<Category value="3" name="OTHER">
<Type value="8" name="Production"/>
<Type value="9" name="Office"/>
<Type value="10" name="Toner for Printer"/>
<Type value="11" name="Security Camre Lookup"/>
</Category>
</CategoryList>
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Aug 17, 2010
I am using cascading drop downlist for two level in ,selecting county based on state
my requirement is i need to disable/enable cascading drop down on click of gride view edit/view button.
I tried all the java script Onpopulated method but no luck
[Code]....
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Jul 14, 2010
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...
[Code]....
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Aug 25, 2010
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.
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Feb 2, 2010
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.
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