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by: M. David Johnson |
last post by:
I cannot get my OleDbDataAdapter to update my database
table from my local dataset table. The Knowledge Base
doesn't seem to help - see item 10 below.
I have a Microsoft Access 2000 database which indexes
computer magazine articles for personal reference.
I am developing a Visual Basic.NET program whose sole
purpose is to enter new records into the database. No
updates to existing entries, no deletions, and no display
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by: MSNews |
last post by:
Hi.
I need to set texts to the row headers of a Datagridview, like we can do with column headers.
For example:
========================================
| COLUMN A | COLUMN B | COLUMN B |
ROW 1 | | | |
ROW 2 | | | |
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by: johntarr |
last post by:
I hope I am not asking about something that has been done before, but I
have searched and cannot find an answer. What I am trying to do is to
run a query, and then perform some logic on the rowcount and then
possibly display the result of the query. I know it can be done with
ADO, but I need to do it in Query Analyzer. The query looks like this:
select Var
from DB
where SomeCriteria
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by: slg |
last post by:
I am using virtual mode for datagrid. After i set the rowcount property to
16000, I am receiving
datagridview 's CellValueNeeded event 16000 times for each row.
This is causing the application to hang for sometime. I am displaying only
16 rows at a time.
I am following the sample mentioned in
http://msdn2.microsoft.com/en-us/library/ms171625.aspx artile.
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by: nev |
last post by:
i would like to do something like this with a datagridview...
for i as integer = 0 to dgv.rowcount - 1
if dgv.rows(i).columns("Name").text = "" then
msgbox("please enter the name in the dgv cell.")
exit sub
else
msgbox("thanks for placing the names on each row.")
end if
next
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by: nev |
last post by:
basically, what i'm trying to do is to place a rowcount column in my datagridview.
my dgv already has values. i'm thinking i can use dgv.columns.insert(0, ???) to place the rowcount column in the dgv.
i did...
dim dtgvc as datagridviewcolumn
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by: Andrus |
last post by:
I have DataGridView in virtual mode containing 3500 rows.
In code below, assigning to RowCount value to 3500 takes 8 seconds.
CPU usage goes high at this time.
Stepping by F11 into user code shows few celltemplate property getters and
combobox/datecombo constructor calls without database access which does not
take a lot of time.
Debug output (below) shows lot of messages Stepping over non-user code.
Running in release mode from...
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by: priyamtheone |
last post by:
I'm trying to make a datagridview column to act like a datetimepicker column (C#.Net 2005). These are the behaviours that the dgv should have:
1) Initially all the cells of the dtp column should be blank unless they are filled by the user.
2) As soon as the user enters a cell, the dtp control should appear as the editing control of that cell. If there's a value in the cell beforehand, that value is set as the value of the dtp editing control...
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by: alex21 |
last post by:
Ok im getting this exception from a DataGridView control in my program.
System.ArgumentOutOfRangeException was unhandled
Message="Value of '132' is not valid for 'Value'. 'Value' should be between 'minimum' and 'maximum'.\r\nParameter name: Value"
Source="System.Windows.Forms"
ParamName="Value"
StackTrace:
at System.Windows.Forms.ScrollBar.set_Value(Int32 value)
at System.Windows.Forms.DataGridView.ScrollRows(Int32...
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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...
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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,...
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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...
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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 launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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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
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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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 effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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