I add cascading drop down in a place holder during page load. When i submit the entire form, i found out that my drop down list is reload and my selected value is not selected.
View 3 RepliesI have a cascading dropdown. After the dropdown is populated(it is in another file) i would like to return back to the original form where the control is placed. is there anyway of doing it
View 4 RepliesI have the following code:
.aspx
<asp:DropDownList ID="ddlCountries" AutoPostBack="true" runat="server">
</asp:DropDownList>
[code]...
I have an input form on a page along with gridview and combo box. a user first select a filter combo box then click on search, to see a return values in a grid view format. then a user can enter new row once he / she cick add, i want the page to reload and the new inserted value to show in the gridview.
View 1 RepliesI have 3 drop boxes: 1.) Choose Operation 2.) Choose Site 3.) Choose Area. All three of them are linked to an SQL server database which has 3 tables following the same heiarchy of order. I.e. Areas belong to a Site and Sites belong to an operation. And there can only be one operation per site, or one site per area.
First you select an operation, then the page auto postbacks to filter the sites. Then you pick a site and again it autopostbacks to filter the areas. The issue I am having is that when an associated operation has no sites underneight it, and therefore no areas under that, the previous values that were in the boxes are displayed and the user can't click on the boxes anymore. I think this is kind of cheap looking and would like a way to make it so the boxes are clear (i.e. nothin in them). Is there anyway to check if they are going to freeze like that and assign them blank values?
I have three cascading dropdowns and two of them need to trigger something outside of the dropdowns, so I have OnSelectedIndexChanged events on them. So as to not reload the whole page when these items are triggered, I have all of this in an Update Panel.
Everything works fine -- the only issue that the client doesn't like is that the cascading dropdowns reload on the asynchronous postback.
I have a website installed on one of our sales guys laptops and am having issues with the website hanging if left for 2 minutes. This doesn't happen on my dev box, my live machine or the other sales guys machine.
The website will hang. It's not just limited to this page, it will happen on all pages when I leave it for more than 2 minutes and then try and process a page that calls back via button or drop down ect. I have checked the IIS settings of the machine and everything seems the same as the other sales guys machine who is running the same version of the site.
Here are the specs:
Dev Box: asp.net 2, windows server 2008 64bit
Live Box: asp.net 2, windows server 2008 64bit
Working Sales Guy: asp.net2 windows 7 64bit
Broken Sales Guy: asp.net 2 Windows vista 32 bit (the only thing I can see different is windows version)
EDIT: For more information, if I stop the website from trying to load while it hangs, clear my history for the last hour and then refresh, the page comes back fine.
EDIT2: I have just spat out some debug information and it seems it doesn't even go into the post back I need.
EDIT3: This doesn't seem to happen when using Chrome but does when using IE and Mozilla.
I have an aspx page for Search Options. There are three aspx Dropdown List Controls that are each bound to seperate data sources. The selection made in the Dropdown control is used in a SQL Query within a GridView data source to display the results list.
When I select an item from the drop down list I get the search result, but I want the drop down list to return to it's initial state after it displays the result, so the next selection made will clear the results list from the first selection. I have tried a number of different approaches, but no success. Seems like this should be easy, but I'm new to coding.
I have found a couple of possibles on the forum, but they didn't work. Not sure if you can make any sense of this, but I'll try to give you something more to go on. All I really want to do is reset the dropdown after it displays the results of the search, which I assume is after a PostBack. Here is what I have tried in the Code Behind or Script.
This for just one of the Dropdown Lists, ID=Practices. I have been trying to make this work for way too long. Also, I have tried it with AutoPostBack set to true but same problem. Currently have a 'Submit" button on the page to initiate the search.
[code]....
i have a place order form and i have a drop down list that contains list of items whenever i add item (for example item1) to place order and click add another item button, i need to remove (item1 ) from drop down list to avoid dupplicate insert in sql table or mayb need to fill the drop down but without (item1) cause i already selected it i am using sql datasource to fill the drop down list of items.
View 13 RepliesIn my project I used a dropdown list which databind as follows:
My drop downlist code as follows:
[code]....
* My proble is when I Change the Index Selection My dropdownlist automatically post back and it loses its Selected Index and move to Index=0
* When I press any server control e.g. button it also behave as previous.
Cascading html select server control, jQuery does not retain value on post back
View 4 RepliesI searched google and found asynchronise post back trigger is used if we want update panel to post back on some event of control if it is out side the update panel. Than what is purpose of post back trigger ?
View 2 Repliesmy code as below:
1) I have set EnableViewState = True
<%@ Page Language="VB" MasterPageFile="~/en/en.master" AutoEventWireup="false" CodeFile="product_detail.aspx.vb" Inherits="en_product_detail" EnableViewState="true" %>
2) I have set AutoPostBack & EnableViewState = True
<asp:DropDownList ID="ddl_order" runat="server" AutoPostBack="true" EnableViewState="true">
</asp:DropDownList>
I have a page where in there are various entry fields like name, registration number, country, state etc whcih are mandatory. On selection of country in dropdown,the state dropdown is filled and in the phone number boxes the country code is also filled simultaneously.
When I click on Save button it shows the required fields respective messages in the validation summary. When I select the country the state and country code are filled and the validation summary vanishes though I have not entered text in the other mandatory fields. None of the required fields messages are displayed though all fields except Country state and country code are filled.
I have 3 drop downs in a details view (populated from a gridview) during insert mode.
Dropdown 1
Dropdown 2 --> Based on drop down one
Dropdown 3 --> Based on drop down two
I am curious of how to handle the autopostback to update 2 and 3 since they are part of the detailsview, there isn't a selected_index_changed event.
I am ok with adding items to them on page load, just not for cascading of them...
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...
View 1 RepliesI have four textbox and a button in my page. After filling the textbox. When the user click save button. A loading image should be displayed. User should not feel that the page is postback to the server,Some thing like in facebook loading image.
View 5 RepliesBeing new to ASP.NET I have run into trouble building my own Whack-a-mole program. I think my problem comes from using Buttons, which by themselves send post backs to the server, making the software unusable. The looks are in place, making new buttons show up in the grid, in different places by random. However, when a button is pushed - the score doesn't change (which I feel is strange).
Not so strange is that the Button doesn't work since it sends post back to the server - reloading the UpdatePanel. I think I should use a different controller like the CheckBox and style it hard using CSS (which isn't a problem). Is this the correct way to go, or should I make use of JavaScript AJAX instead?
Note to self: This technique shouldn't be used in a public application since it put too much unwanted pressure on the web server.
[code]...
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'.
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 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]....
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
View 1 Replies[Code]....
Dont go away by looking a difficult probem.
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 ?
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.
View 1 Replies