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by: Bob |
last post by:
1- Inability to easily reset datagridview combobox selection to null
Solution - add a contextmenustrip to the column in which you have the
combobox on the datagridview. show to user, something like Remove selection.
In the onclick event
Me.Datagridview1.CurrentRow.Cells.Item("YourColumnName").Value =
System.DBNull.Value
2- You can use same technique for ordinary comboxes, instead of row in
datagridview set value of the combobox bound...
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by: Michel Lapointe |
last post by:
Hello,
I would like to know if there is an event for the Datagridview control
that is trigger before the selection change and is cancelable.
I'm currently using the SelectionChanged event (using Full Row Select),
but this event is trigger only after the selection changed is completed and
therefore is non cancelable unless you keep the previous selection in a
variable and rechange the selection, which is painful.
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by: tony lock |
last post by:
Has anybody found a way to disable a column in DataGridView i.e prevent it
being selected. With DataGrid it was fairly easy to check on the column being
entered and move the selection to the next column, this does not seem
possible with DataGridView.
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by: steve |
last post by:
Hi All
I have a datagridview bound to a datatable
Due to the use of touch screens I need to be able to scroll the grid in code
in response to a button click
i.e each button touch (click) will move the selection up 1 row
How do I do that
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by: George |
last post by:
Hi,
I have been encountering a refresh problem with DataGridView, which is bound
to a DataTable.
When I make updates (Add, Delete, update) to the DataGridView, everything
flow nicely to DataTable. No problem here.
However, when I add data (programatically) to the DataTable, the
DataGridView does not refresh right away. If I minimize and show my form,
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by: Paul Cheetham |
last post by:
Hi,
I have a DataGridView control, where I am setting its Datasource
property to a datatable. The DataGridView has it's MultiSelect property
set to false
I also have a handler for the SelectionChanged event.
When I load the data, I set the DataSource property, and then call
ClearSelection() to make sure there are no selected rows.
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by: DBC User |
last post by:
I have a datagridview and there are 4 coulmns, the user could do sort
on any of the columns. After doing sorting. The user could do refresh
the datagridview and get another set of data. But when I display the
another set of data the sorting selection is lost. Is there a way to
presist the user selection on the data grid easily?
Thanks.
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by: =?Utf-8?B?Q2hyaXM=?= |
last post by:
I am trying to populate a DataGridView Combobox column with a different data
binding source (dataset) depending upon a selection made in a previous
column. I can handle the previous column but how do I assign the following
properties dynamically in code?
DataPropertyName
DataSource
DisplayMember
I do see how to set these at design time but that won't do because I need
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by: colin |
last post by:
Hi,
I need to tell how many rows are visible on the screen,
in my DataGridView control
so that I can ensure my newly selected row is visible
without doing any unecessry scrolling,
I thought RowCount would give me this :-
Summary:
Gets or sets the number of rows displayed in the
System.Windows.Forms.DataGridView.
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by: hzgt9b |
last post by:
Using VS2005, VB.NET,
I have a windows app with a DataGridView (lets call it DGV). At some
point in the life of my app I want to clear the selection of the
currently selected row (Multiselect=false) from DGV - to do that I
tried this:
DGV.ClearSelection()
Cosmetically this appears to work but it appears that the DGV still
stores the index value of the selected row. If the 1st row I click on
after executing ClearSelection() is the row...
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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...
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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: 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...
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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: 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...
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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: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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