I'm trying to make cascadingdropdownlists work on my web form. I was following this tutorial:
[URL]
I followed that tutorial almost ot the T. But when I run my page, neither of my dropdownlists become populated. I don't know what I'm missing...
Heres the code for my Form:
[Code]....
Here's the code for my WebService:
[Code]....
And Here's the code for my Web.config file
[Code]....
I have two dropdown lists that I am using to filter a gridview. I gridview is populating based on a query
select [AnnotationNumber],[AnnotationBy],[AnnotationType],[BusinessUnit] as Unit,[ErrorType],[ActualAgencyError],AnnotationComments,[sgkComments],[ActualAgencyError],Cust from vw_GridviewSource where Name = '"+@Name+"' and AnnotationDate = '"+@Stage+"'";
SqlCommand cmd = new SqlCommand(query);
gvSummary.DataSource = GetData(cmd);
The @Name and @Stage variables are the selected values of the dropdownlist. When I start I get the two drop down lists on my webform. When I select the values from the dropdownlists, nothing happens. I get no gridview. I added onselecedindexchange event both dropdownlists and even after both are selected nothing. I debugged the code and found that there is a point where the value is correct, but I still don't see the gridview. I have alsochecked the query associated with the databind and it works perfectly when I check it in SQL. I am enclosing all the code from the aspx.cs and aspx.
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Trakker.aspx.cs" Inherits="AnnoTracker.WebForm1" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
[CODE]..
I have a page with a data repeater. Each row has a dropdownlist for the user to select a value and the values in every dropdown are the same. I also have an SqlDataSource which each dropdownlist gets its values from as its created. Everything is working as it should but for each dropdown that is rendered a seperate call is made to the database.
suggest a better way for me to do this that means only one call to the database for all dropdowns rendered?
i have the following code:
[Code]....
3 nested dropdownlists SELECTing from DB. So i select the brand, then i select the model and then i select the product and click on SEARCH button.
But when i select thebrand, and then the model, and if i want to change the brand, it does not reset the second and third dropdownlists.
I have an accordion and a nested accordion as a menu ba on left. thepanes contain various controls mainly dropdownlists. I disable the accordion after a user has enetered some values and clicked the search button. However in IE7 the accordion is disabld and all the contained controls are too. But in IE6 the dropdownlists aren't disabled whats the reason behind this and whats the solution?
View 6 RepliesI'm trying to use two cascading dropdownlists with the same values -- one shows a code, and the other a description. They are sorted alphabetically, so they have the same values, but not the same index. Both are generating correctly. What I am trying to do is set the abbreviation when the description changes (and vice versa).If I use this javascript, it changes on the web page, but I get a null value returned to the form handler. If I comment out the CascadingDropDown control and load the TrickAbbrev from a database it all works.
function scrTrickNameOnChange(ddlId)
I have a web app with several groups of cascading dropdownlists. All the cascading dropdownlists work as designed, but now the app is in the live enviroment with multiple users they are getting error 500 messages returned in some of the dropdownlists. Just wondered if there is a set amount of time to populate between selections? As these users are sometimes waiting tens of mins betwen selecting the values.On some of the dropdowns i'm pasing a date to the method using session variable whether this could be the issue? an example of one of the methods is below:
[Code]....
I've been trying to replace my dropdownlists with ajax ComboBoxes so i can apply css in ie.
I can't seem to apply any css to the items in the dropdownlist. Here is my css:[Code]....
I've tried putting font styles in every class but it does nothing. The font in the actual text bar is styled correctly.
Also i've noticed the dropdownlist doesn't display all the items in it. Only the top 2.
Imagine I'm developing a webform with two dropdownlists and a submit button. The second dropdownlist depends on the choice in the first, and both are loaded dynamically using webmethods being called with javascript in de ASPX page (ajax). When I submit the form to the server, to save the data, I can't get the value of those dropdownlists. I think it is because with client AJAX no viewstate data is being generated. I need to send the data to the server and save the webform data, and identify wich data is on each webcontrol.
View 3 RepliesAm using masterpages.I have written following code to add rows to dynamictable with html controls.
I need to load data from database in cascading dropdownlists(like country,state);this javascript code is not accepting asp controls.can we load data in cascading html dropdowns? using javascript/AJAX?
html:
<input type="button" value="Add Row" onclick="addRow('dataTable')" /> [code]....
I'm wondering how I can make one dropdownlist affect another one.. For example...You select your country from a drop down list of countries. On selecting it, another dropdown list becomes visible and displays the states of your country. I'm taking this data from a database, so it merely has to link to a different table for each country selected.
Also, I want the option of being able to add a 'state' to the database from the webform by typing whatever its called into the combobox so that future users will see that option.
I have 3 drop down boxes, created using the HTML select tag. On page load, the first box has a few names. Now, when I click on one of the names in the first box, some more names should appear in the second and when I click on a name in the second box, some more names should appear in the third box. How can I achieve this using AJAX? I have to use ASP.Net and MS SQL Server only. I'm a complete noob to AJAX and I've been educating myself about it, but nothing's working out. I've been looking for the code for close to a week. I looked up w3schools.com, but when I tried that code, it didn't work. Please help me out and please tell me step by step, the things required in order to make it work, and what goes where. I have a deadline that is fast approaching and am at my wit's end trying to make it work.
View 1 RepliesI have a GridView on the modal popup dialog. I need to populate it with data.Could you tell me please where I should place code for it? If I place it into the handler of the click of the button that invokes the popup, that handler is never called.
View 4 RepliesI have a Grid view control in my aspx page. I have a textbox and a button control as well.
I will enter some query in the textbox amd when i click the button, the server side code will be executed and there i will populate the grid using a dataset. I will just give the dataset as datasource for gridview, and i will bind it.
Now i want to do this in browser scripting. I'm using a javascript function that will be called to execute the button click and in that i can use xml or json to send the query to generic handler file(.ashx).
I the ashx file i will use the query and will store the result in a dataset and now i want to send the dataset back to javascript, so that i can assign the dataset to the datasource of the gridview.
How can i send the dataset to the javascript.
in context.Response.Write(Result), i used string in Result and in responseText, i can easily get the values, but for this case what can i do?
I wanted to use using database to populated the dropdownbut i am getting error as type or list space cannot be foundat ListCountry GetCountriesas its defined staticthe web methood code is in the same aspx.cs pagehow culd i use it if a different webmethod page .asmx is created
ref : [URL]
I am new to Ajax in general but I have a series of cascading drop down lists that are working fine. I'm using them on a form that I want to be able to either add a new row of data to the database or edit an existing one. I have the insert a new row working but editing an existing one is a bit trickier. The drop down lists are only part of the form but I would like to be able to query for a row id and set their values. Right now I'm querying for a row of data and populating the form with its values on page load and all of the fields work except for the drop down lists. I assume that this is because when the page is loading the web methods haven't run yet to populate the cascading drop downs. Therefore I can't set the selected value because there aren't any values yet. So therefore I'm pretty sure I need to do this from a web method so that it runs after the lists are populated or while the lists are populating but I don't know how.
View 3 RepliesI have an ajax modal popup extender in update panel. The modal popup extender has a label, checkbox and a dropdown list. When i open the popup first time (i.e Page_load) and select something and click on ok the data is populated correctly in another grid. If i open the popup second time and select some data and click on ok it is populating the grid with the current selected data as well as previously selected data.
View 3 RepliesI have some cascading dropdownlists using the ajax toolkit I have a set up datatables in an xsd file. Then use these in a webservice to populate all the fields ... this all works great but now i need to pass an additional paramter to the first dropdownlist ( a date) but don't know how to do this? The method is below...
[Code]....
The other code is:
[Code]....
The first change would be to the tableadapter to add a param to the code i.e
AuditWebDS.TeamsDataTable teams = teamsAdapter.GetTeams(calldate);
but how do i get the calldate param to the webservice method... i tried a session variable but it comes up with session is null ? Is there another better way?
How can i use editorfromodel and dropdownlists that are to be populated by tables in my model? Seems i can use custom templates to format the major datatypes like datetime, string etc but i how can i manage select lists or dropdowns since i cant pass classes into editorformodel..
Is there a way to force a particular field to be formatted as a dropdownlist in editorformodel?
I'm using a code I got from CodeProject [URL] about a validator that can monitor 3 form controls. I pasted it to my site, changed it to suite my parameters but seem to encounter a situation that can't satisfy my desire: Instead of making sure that all the 3 DropDownLists are filled without their default value, the validator cares only if at least one has been filled, and if so, he can call it a day. look at this code at tell me what am I doing wrong?
[Code]....
I have to generate multiple dropdownlists on clientclick. That is new dropdownlists on every client click.
I placed a button and wrote code on click event. protected void addReq1_Click(object sender, ImageClickEventArgs e)
{
DropDownList oDdl = new DropDownList();
oDdl.ID = "ddlReq" + (++i).ToString();
oDdl.DataSourceID = "DSUsers";
oDdl.DataTextField = "UName";
oDdl.DataValueField = "UName";
HtmlTableCell tc0 = new HtmlTableCell();
HtmlTableCell tc1 = new HtmlTableCell();
HtmlTableCell tc2 = new HtmlTableCell();
HtmlTableCell tc3 = new HtmlTableCell();
tc2.Controls.Add(oDdl);
HtmlTableRow tr = new HtmlTableRow();
tr.Cells.Add(tc0);
tr.Cells.Add(tc1);
tr.Cells.Add(tc2);
tr.Cells.Add(tc3);
search2.Rows.Add(tr);
}
Here "DSUsers" is SqlDataSource. "i" is static variable. "serarch2" is html table with runat server tag The problem is only one control is getting rendred, after that on every additional click same DropDownList is getting replaced. No new DropDownList is added to the page.
I have created a label and a dropdownlist. The label has the dropdownlist as associated id.If I click on the label and then uses the mouse up or down the dropdownlist creates a postback for each click. This is quite anoying and doesn't happen if you click on the dropdownlist and uses key-up or key-down, or if you uses another browser than IE.Is it possibel to fix this, so you can use key-up and key-down without causing a postback, and first on the enter-key creates the postback (as it does if you click on the dropdownlist and not label)?
View 2 RepliesI am trying to use two DropDownLists (Cities, Categories) in a PartialView that will be used in MasterPage, meaning they will be visble all the time.
I tried to load them in HomeCOntroller, but that didn't work. I got an Exception.
I read something about making a baseController that the other controllers will inherit from, I have tried that, kind of, but I guess i'm doing something wrong.
This is the only code I got today:
Masterpage
[Code]....
PartialView (SearchForm.ascx)
[Code]....
Two question:
Where and how to load the DropDownLists is the problem. I have tried to load it in the HomeController, but when go to another page then it says that the DDLs is empty and I get a Excecption. Why do I have to use two forms for the ActionMethod to trigger ?
On my webform, I have 3 dropdownlists with datasource to SQL. Through dropdownlists, I want the user to fill the controls, so I can get his location. One for his area, subarea, town or village. Actually the values appears great but I dont like when my page loads, the ddl fills with default values and second when I change, lets say the first ddl, it also full fills the rest with the first default values. All I want to do is, load my page with empty values, assign a value at first ddl, the second remains empty til I click on it and select a value and so on.. here is the code i use
HTML Code:
<div id="CreateAccountDiv" style="padding-top:10px">
<%--Label and Textbox for company--%>
<div><asp:Label ID="lblComp" runat="server" Text="επωνυμία επιχείρησης" CssClass="sizeLabel" ForeColor="black"></asp:Label></div>
<div><asp:TextBox style="width:250px;font-size:10pt" ID="txtComp" runat="server" CssClass="sizeText transparent" ValidationGroup="form">
[code]....
I have a dropdownlist on my page which has autopostback set to true. On postback I populate a runat server div with a bunch of other DropDownLists. I then have a button which does another postback to save the selections. Because the second set of dropdownlists are dynamically generated I cannot for the life of me figure out how to get their selected values?
1st DropDownList
[Code]....
Then when I try get the dropdownlists using a foreach on the div that I added the control to it does not work. They are populating fine, its just on the button click. I have tried EnableViewState = true on the dropdownlists and my code is correct because if I code them into the aspx then it works, its something to do with the state.
