Apparently if you have any duplicates in your Value collection the
selected index that is maintained through the state defaults to the
first index in that group of duplicates.
So my items correspond to the Box_Id in the table (the unique
identifier in the DB). There are 8 boxes, 1-8. Then I grab a business
related date and fill the Value collection with this, that date
corresponds to something with each box. The dates (which become
values) could all be different or the same, there is no consistency
with the dates. Well boxes 1-6 all had the same recieve date so the
value was the same for all those items. Therefore, if you select
anything within "Index" 0-5 it will default to 0 because that is the
first item in the list with the duplicated date. Same for "Index" 6-7.
So when it is maintaining its state it remembers the selected index,
but won't allow duplicates in the value field. They should provide a
property which allows duplicates in the value field.
Is this a bug or intentional? 7 2183
This is all through a postback by the way Is this a bug or intentional?
Just a WILD guess, but I assume viewstate for DDL's default to the value
field.
You may have to write your own check that grabs the selected index on
postback and reset it yourself.
-Darrel
Sounds like you have a bad design to me. Why would you want duplicates in a
list anyway? Which one would the user want to select?? Very confusing. I
would say the behavior you are seeing is by design
Jeff
"Phuff" <pc*****@gmail.com> wrote in message
news:11*********************@t31g2000cwb.googlegro ups.com... Apparently if you have any duplicates in your Value collection the selected index that is maintained through the state defaults to the first index in that group of duplicates.
So my items correspond to the Box_Id in the table (the unique identifier in the DB). There are 8 boxes, 1-8. Then I grab a business related date and fill the Value collection with this, that date corresponds to something with each box. The dates (which become values) could all be different or the same, there is no consistency with the dates. Well boxes 1-6 all had the same recieve date so the value was the same for all those items. Therefore, if you select anything within "Index" 0-5 it will default to 0 because that is the first item in the list with the duplicated date. Same for "Index" 6-7. So when it is maintaining its state it remembers the selected index, but won't allow duplicates in the value field. They should provide a property which allows duplicates in the value field.
Is this a bug or intentional?
Well, its simple. at the top you have a job order, which can have one
or more box units in it. Each box is a designed unit in an engineering
aplication (this "box" is something that gets built). They selected
the job already, and this is the page for when engineering received the
box. Lets say there are 5 boxes. It "could" be that engineering
received them over 5 days so each Recieve_Date could be different.
Also, they could have recieved each box in the same day, in which case
the Receive_Date would be the same for all.
On my drop down list the items (text which the user can see) is the
Box_ID. That is the unique identifier in the table and happens to be
the box's name as well. Thats what I want the user to see. With each
box is an associated date, which I grab from the database, and so I
don't have to reach into the database on every load I associated the
value for each item with its corresponding date. Yes, I can just
dynamically grab from the database, but is Progress and its old and
slow. Yes I can store the dates in an array and keep as a session
variable, I just found it wierd that I couldn't use the value
collection in this manner. It should maintain selected index despite
the values in the Item or Value collections.
Yep, bad design. Using duplicate dates as a dropdown Value?? Um, why not use
the box_id as both the Text and Value?
Jeff
"Phuff" <pc*****@gmail.com> wrote in message
news:11**********************@j33g2000cwa.googlegr oups.com... Well, its simple. at the top you have a job order, which can have one or more box units in it. Each box is a designed unit in an engineering aplication (this "box" is something that gets built). They selected the job already, and this is the page for when engineering received the box. Lets say there are 5 boxes. It "could" be that engineering received them over 5 days so each Recieve_Date could be different. Also, they could have recieved each box in the same day, in which case the Receive_Date would be the same for all.
On my drop down list the items (text which the user can see) is the Box_ID. That is the unique identifier in the table and happens to be the box's name as well. Thats what I want the user to see. With each box is an associated date, which I grab from the database, and so I don't have to reach into the database on every load I associated the value for each item with its corresponding date. Yes, I can just dynamically grab from the database, but is Progress and its old and slow. Yes I can store the dates in an array and keep as a session variable, I just found it wierd that I couldn't use the value collection in this manner. It should maintain selected index despite the values in the Item or Value collections.
Because I still need that date. Sure I could use the ID as both but
then I would need to make a call to the database when I need the date.
What I did was grab my dates and for loop through and place in session
variables that way I only needed to connect to the database on first
page load.
As far as the bad dplicate dates, I didn't realize it would be a
problem in the control. It took me a bit to realize the dates were the
issue. Some of these jobs will have a different date for each unit or
no date at all.
You can put Objects in there too, not just scalar values. Put a struct that
has both box_id and date.
Jeff
"Phuff" <pc*****@gmail.com> wrote in message
news:11**********************@z34g2000cwc.googlegr oups.com... Because I still need that date. Sure I could use the ID as both but then I would need to make a call to the database when I need the date. What I did was grab my dates and for loop through and place in session variables that way I only needed to connect to the database on first page load.
As far as the bad dplicate dates, I didn't realize it would be a problem in the control. It took me a bit to realize the dates were the issue. Some of these jobs will have a different date for each unit or no date at all. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
by: DotNetJunky |
last post by:
I have built a control that runs an on-line help system. Depending on the
category you selected via dropdownlist, it goes out and gets the child
subcategories, and if there are any, adds a new...
|
by: Ashish Sharma |
last post by:
I have a DropDownList inside a DataList on a page. I want to set the
selectedindex property of the DropDownList to some value.
I bind the DropDownList on the ItemCreated Event of the DataList.
...
|
by: fwirtanen |
last post by:
I am building a custom composite control consisting of two drop downs,
with parent/child dependancy.
The child dropdownlist is updated through client callback when the
parent index changes.
...
|
by: DJ |
last post by:
I have a DropDownList in Visual Web Developer that is databound to a SQL
Database. Whenever the web page is opened the DropDownList is automatically
filled with the first item in the table.
My...
|
by: reddog |
last post by:
Getting the SelectedIndex of a DropDownlist under the ItemTemplate in a
GridView is harder than I thought it would be.
I have:
A Gridview of n rows bound to a DataSet.
A DropDownList as an...
| |
by: =?Utf-8?B?ZGVuIDIwMDU=?= |
last post by:
Hi,
Trouble in retaining values of dropdownlist, textboxes, and other
controls when
dropdownlist selectedindexchanged event is triggered, the controls are
inside a user control and this user...
|
by: jwnews1231 |
last post by:
Hi,
I've been working on minimizing the use of the ViewState in my asp.net
applications because of its overhead. The problem I am having is that
I keep losing SelectedIndex in the...
|
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...
|
by: MaryamSh |
last post by:
Create Dynamic Dropdownlist Controls and related event
--------------------------------------------------------------------------------
Hi,
I am creating a Dynamic Search in my application.
I...
|
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...
|
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...
| |
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each...
|
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,...
|
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...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
|
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 ...
|
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
| |
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...
| |