473,586 Members | 2,718 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

DropDownList SelectedItem not working by default

I want to use the selected value of a drop down list to filter a data source.
When i have done this before i have used a DataSourceContr ol and i have just
made the drop down a control parameter, which works well. However this time
i need to combine a set of results from two databases into a single data
source so i need to use ADO to do it. The problem i come up against is that
until the value in the drop ,down box is changed, the SelectedValue property
does not seem to exist (or is set to null). I have tried setting the
SelectedIndex to a default value, and this work in so far as that index is
selected in the drop down list on the screen, however the SelectedValue
property is still null.

How do i get the vlue that is selected by default in a drop down list,
before anyone selects a different value. This just works with DataSource
controls and control parameters but you can't seem to add a controlparamete r
to a ADO DataCommands Parameters collection.
Jul 19 '06 #1
0 960

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

12
2774
by: Stanley J Mroczek | last post by:
How do you load a dropdownlist when edit is clicked in a datagrid ? <Columns> <asp:BoundColumn DataField="OptionDescription" ItemStyle-Wrap="True" HeaderText="Option Description"></asp:BoundColumn> <asp:TemplateColumn runat="server" HeaderText="Id Type Option" "> <itemtemplate> <asp:label runat="server" Text='<%#...
0
1900
by: adam | last post by:
i have custom user control and i'm trying to pass values to custom user control......I need help it seems to me i cannot pass the value to user control from dropdownlist. I have property in a control. In a default.aspx page <SkinExample:Hello id="HelloControl" SkinName="red" runat="server" /> i can pass the value, it works fine, but from the...
1
1706
by: m3ckon | last post by:
Hi there, please help if you can, I'm having an issue with droponnlists in a datagrid I have a datagrid which is populated from a query .. all works fine I've added two extra columns, one is a dropdownlist and the other is a button which runs the command selectcode for this:
7
2026
by: Lastie | last post by:
Hi all, I’ve got a ‘dropdownlist’ web control and I can add ‘listitem’ no problem. I can also bind data from an SQL database fine. My problem is that I want to do both at the same time to allow me to have the first option in the list a ‘listitem’ saying something like ‘please pick an option’, and then the rest of options...
10
10732
by: dhnriverside | last post by:
Hi guys Still having a problem with this dropdownlist. Basically, I've got 4. The first 2 work fine, then my code crashes on the 3rd. ddlEndTimeHour.Items.FindByValue(endTime).Selected = true; Where endTime is a string containing "15".
3
2692
by: sling blade | last post by:
Hi, I have a dropdownlist in my DataList control and I am trying to set the SelectedItem property of the dropdownlist so when the datalist displays the user will see the text in the dropdownlist set to a predetermined value. I can set the SelectedItem property easy enough and get the dropdownlist to work fine just so long as the...
3
2058
by: Sam C | last post by:
Hi, I have an ASP.Net page which has a DropDownList on it. The DDL is populated via a method which is called from the Page_Load if IsPostBack = False. When the form is submitted the SelectedItem of the DDL (as retrieved from any of the supplied methods) is always the top item regardless of which one is actually selected. The odd thing...
4
2025
by: ^MisterJingo^ | last post by:
Hi all, I have a web page which has a single dropdownlist containing 3 items. Below the dropdownlist are two listboxes. Depending on the option selected from the dropdownlist, the left most listbox populates itself from a DB table, assigning the correct id to each item as a value. In between the listboxes are two buttons. On clicking an...
1
4646
by: MaryamSh | last post by:
Hi, I am creating a Dynamic Search in my application. I create a user control and in Page_load event I create a dynamic dropdownlist and 2 dynamic button (Add,Remove) By pressing Add button ,another row will be created with the same control (I mean another dropdown and 2 button) and so on. and by pressing Remove button the selecetd row will be...
0
3488
by: MaryamSh | last post by:
Create Dynamic Dropdownlist Controls and related event -------------------------------------------------------------------------------- Hi, I am creating a Dynamic Search in my application. I create a user control and in Page_load event I create a dynamic dropdownlist and 2 dynamic button (Add,Remove) By pressing Add button ,another row...
0
7911
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main...
0
7839
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language...
1
7954
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For...
0
6610
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then...
1
5710
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes...
0
5390
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert...
1
2345
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
1
1448
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
0
1179
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.