I'm using Net 1.1 (2003) SP1 & Windows 2000
Here's the issue ...
Rows 12 thru 24 are selected in a datagrid.
The user now unselects rows 12 thru 24 and selects rows 45 thru 70 ???
How can I tell that the user has reselected a different set of rows in a
datagrid.
I don't see any events at all associated with row selection within a
datagrid.
Thanks in advance!
Barry
in Oregon 6 1720
Hi Barry,
First of all, I would like to confirm my understanding of your issue. From
your description, I understand that you need to know what's the event that
is fired when selection in a datagrid has changed. If there is any
misunderstandin g, please feel free to let me know.
As far as I know, there is only event fired when the first row of the
selection changes. We can handle CurrencyManager .PositionChange d event to
achieve this. Here is an example:
private void Form1_Load(obje ct sender, System.EventArg s e)
{
CurrencyManager cm =
(CurrencyManage r)this.BindingC ontext[this.dataSet11. Employees];
cm.PositionChan ged +=new EventHandler(cm _PositionChange d);
}
private void cm_PositionChan ged(object sender, EventArgs e)
{
this.Text = this.dataGrid1. CurrentRowIndex .ToString();
}
However, this only works on the scenario that the first row of the
selection changes. For example, the user changes selection from 12 thru 24
to 45 thru 70. But if he changes 12 thru 24 to 12 thru 18, it will not be
fired.
HTH.
Kevin Yu
=======
"This posting is provided "AS IS" with no warranties, and confers no
rights."
Kevin,
Thanks for your prompt reply, its very much appreciated. I was hoping that
the datagrid had a better method for tracking when a user highlights a
different set of rows within a datagrid. Oh, well.
With your help here and your answer to my "c# Winforms DataGrid: What's the
difference between highlighted and selected rows ???" question I think I can
set up a mechanism that will allow me to accomplish what I'm trying to do.
Thanks again.
Barry
in Oregon
"Kevin Yu [MSFT]" <v-****@online.mic rosoft.com> wrote in message
news:sK******** ******@cpmsftng xa10.phx.gbl... Hi Barry,
First of all, I would like to confirm my understanding of your issue. From your description, I understand that you need to know what's the event that is fired when selection in a datagrid has changed. If there is any misunderstandin g, please feel free to let me know.
As far as I know, there is only event fired when the first row of the selection changes. We can handle CurrencyManager .PositionChange d event to achieve this. Here is an example:
private void Form1_Load(obje ct sender, System.EventArg s e) { CurrencyManager cm = (CurrencyManage r)this.BindingC ontext[this.dataSet11. Employees]; cm.PositionChan ged +=new EventHandler(cm _PositionChange d); }
private void cm_PositionChan ged(object sender, EventArgs e) { this.Text = this.dataGrid1. CurrentRowIndex .ToString(); }
However, this only works on the scenario that the first row of the selection changes. For example, the user changes selection from 12 thru 24 to 45 thru 70. But if he changes 12 thru 24 to 12 thru 18, it will not be fired.
HTH.
Kevin Yu ======= "This posting is provided "AS IS" with no warranties, and confers no rights."
Kevin,
Thanks for your prompt reply to this and my 2nd question, its very much
appreciated. I was hoping that the datagrid had a better method for
tracking when a user highlights a different set of rows within a datagrid.
Oh, well.
With your help here and your answer to my "c# Winforms DataGrid: What's the
difference between highlighted and selected rows ???" question I think I can
set up a mechanism that will allow me to accomplish what I'm trying to do.
Thanks again.
Barry
in Oregon
P.S. it's very early in the morning here and I mixed up replies to your
responses, I hope you'll fogive me. Best wishes.
"BBFrost" <barry.b.frost@ remove_this.wrd .state.or.us> wrote in message
news:#d******** ******@TK2MSFTN GP10.phx.gbl... Kevin,
Thanks for your prompt reply, its very much appreciated. I was hoping
that the datagrid had a better method for tracking when a user highlights a different set of rows within a datagrid. Oh, well.
With your help here and your answer to my "c# Winforms DataGrid: What's
the difference between highlighted and selected rows ???" question I think I
can set up a mechanism that will allow me to accomplish what I'm trying to do.
Thanks again.
Barry in Oregon
"Kevin Yu [MSFT]" <v-****@online.mic rosoft.com> wrote in message news:sK******** ******@cpmsftng xa10.phx.gbl... Hi Barry,
First of all, I would like to confirm my understanding of your issue.
From your description, I understand that you need to know what's the event
that is fired when selection in a datagrid has changed. If there is any misunderstandin g, please feel free to let me know.
As far as I know, there is only event fired when the first row of the selection changes. We can handle CurrencyManager .PositionChange d event
to achieve this. Here is an example:
private void Form1_Load(obje ct sender, System.EventArg s e) { CurrencyManager cm = (CurrencyManage r)this.BindingC ontext[this.dataSet11. Employees]; cm.PositionChan ged +=new EventHandler(cm _PositionChange d); }
private void cm_PositionChan ged(object sender, EventArgs e) { this.Text = this.dataGrid1. CurrentRowIndex .ToString(); }
However, this only works on the scenario that the first row of the selection changes. For example, the user changes selection from 12 thru
24 to 45 thru 70. But if he changes 12 thru 24 to 12 thru 18, it will not
be fired.
HTH.
Kevin Yu ======= "This posting is provided "AS IS" with no warranties, and confers no rights."
Hi Barry,
I think the names of methods lead to misunderstandin g. Actually Selected
means the row that mouse is pushed down. The all the rows with blue
backgroud color are highlighted. IsSelected method actually mean
IsHighlighted.
Kevin Yu
=======
"This posting is provided "AS IS" with no warranties, and confers no
rights."
Thanks Kevin,
That's the understanding that I finally reached. I finally ended up passing
thru the data grid 2 times. The 1st time I tagged the 'highlighted' rows
and the 2nd pass I operated on the 'tagged' rows.
Best wishes.
Barry
in Oregon
"Kevin Yu [MSFT]" <v-****@online.mic rosoft.com> wrote in message
news:rF******** ******@cpmsftng xa10.phx.gbl... Hi Barry,
I think the names of methods lead to misunderstandin g. Actually Selected means the row that mouse is pushed down. The all the rows with blue backgroud color are highlighted. IsSelected method actually mean IsHighlighted.
Kevin Yu ======= "This posting is provided "AS IS" with no warranties, and confers no rights."
You're welcome, Barry,
Thanks for sharing your experience with all the people here. If you have
any questions, please feel free to post them in the community.
Kevin Yu
=======
"This posting is provided "AS IS" with no warranties, and confers no
rights." This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
by: Diego TERCERO |
last post by:
Hi...
I'm working on a tool for editing text resources for a family of software
product my company produces.
These text resources are found in a SQL Server database, in a table called
"Resource" with the following structure :
Resource{,en,fr,es}
Yes.. these are the only languages supported actually.
A couple of rows in that table would look like this :
|
by: Mojtaba Faridzad |
last post by:
Hi,
with SetDataBinding( ) a DataGrid shows a DataView. user can select some
rows in the grid by holding cotrol key. when user clicks on Delete button, I
should delete all selected rows. I am trying to delete these lines from the
dataview like this:
for (int i=0; i < dataView.Count; i++)
if (dataGrid.IsSelected(i))
dataView.Delete(i);
|
by: BBFrost |
last post by:
Ok, I know how to count the number of selected datagrid rows using the code
below. What has me stumped is how to determine when the selected rows
within a datagrid have been changed. The DataGrid object doesn't seem to
have a any type of a selection changed type of event I can grab.
THE QUESTION: Does anyone know how to determine when the selected row or
set of rows within a datagrid has changed ???
This is driving me nuts !
|
by: BBFrost |
last post by:
Win2000
..Net 1.1 SP1
c# using Visual Studio
Ok, I'm currently in a "knock down - drag out" tussle with the .Net 1.1
datagrid.
I've come to realize that a 'block' of rows highlighted within a datagrid do
>> not << constitute a set of 'selected' records. Apparently one and only
one row may be 'selected' in a datagrid. By selected row I mean the row
|
by: Alex K. |
last post by:
I need to be able to jump to first selected row in DataGrid.
How can I do this without using IsSelected for each row?
Is there some sort of collection which contains all selected rows?
Thank you.
| |
by: Engineerik |
last post by:
I have a datagrid which displays rows from a parent datatable.
I use a datarelation so the user can expand the child rows.
How can I tell programatically when the user has expanded the child
rows for a given parent row?
How can I tell which if any child rows are selected?
I am using dataviews as datasources for the datagrid.
|
by: Jon |
last post by:
Question: does datagrid1.isSelected(i) point to the same
row as datatable.row(i).delete after datagrid sorted??
I am using datagrid1.isSelected(i) to identify datatable rows that
have been selected by the user
Then I use datatable.rows(i).delete to delete those rows.
It works fine if I have not sorted the datatable first. But if
|
by: Brian Tkatch |
last post by:
I have a form with two DataGrids, which are kept in sync manually via
Stored PROCEDURE calls. That is, when a record is selected on the first
grid, a stored PROCEDURE is CALLed to Fill() the next second DataGrid's
DataSource. All that works very well. And, when there are no records to
display, it is simply left blank.
My issue is that when i scroll the first one, sometimes the second grid
shows a bunch of null values (a "new" record).
...
|
by: =?Utf-8?B?RGlvZ28gQWx2ZXMgLSBTb2Z0d2FyZSBEZXZlbG9w |
last post by:
greetings,
I have a datagrid view filled with some data, in that data some of the cells
are null and I would like to not let the user select the rows with null
values...
the problem is that the selection goes there when I click and then jump back
to last selected row... the correct behaviour would be stay on the last
selected row always until the user select a new valid row...
|
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 usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
|
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 synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
| |
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
|
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 tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
|
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 most users, this new feature is actually very convenient. If you want to control the update process,...
|
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 protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
|
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 instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
|
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 into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
| |
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
| |