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by: Marie |
last post by:
Hello,
Could you help me ??
I have to modify a binary file (containing dates) : I want to access all records ie add,delete,and modify the dates in the binary file.
I do not have experience with C#, so I thought that a datagrid was the right way to do this.
So I did it, load the file in the grid (not so simple for a beginner ), and now i just can't add row to my datagrid (modifying dates is OK), and it's a problem, really need to add...
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by: szabelin |
last post by:
Hi, I was wondering if there is a way to have a
BoundColumn in DataGrid, but not display it? Basically I
would like to have a primary key hidden (and I need this
for edits and deletes).
I know I could store DataSet in the viewstate or session,
but I was just curios if DataGrid offers something (kind
of like Stringray's grid allowing you to associate a row
with data in a void* )
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by: Kevin Pedersen |
last post by:
Hello, I am using an editable datagrid. After I save the changes the
datagrid shows the old values.
I've read the posts about the Page_Load and not binding the datagrid
each time. The SQL that is being sent to the database is correct and
the changes are eventually being made. If I refresh the page after the
update then the new values appear.
I noticed that when I put a breakpoint in my update handler everything
works fine. When I take...
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by: Sajid |
last post by:
Hello! Experts,
I have the following piece of code in VB.NET that I want to use to
update any records in the database. I would like to use a code as well
as DataGrid to update the records. Please guide me how can I achieve
it. I know there is an Update command to to do this that but since I
am a newbie I don't know how? I'll be really grateful to those who may
help me buy modifying the following code. I am really desperately
looking for...
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by: Ron L |
last post by:
I have a dataset whose source is a SQL 2k stored procedure that I am trying
to display in a datagrid. This datasource has 4 columns that I am
interested in here, a text column and 3 value columns corresponding to
permissions to certain data classes. I want to put the permission values in
combo boxes in the grid and instead of displaying the numeric values, have
the combo box display a string that corresponds to the numeric value (i.e.
No...
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by: cindy |
last post by:
I have a dynamic datagrid. I have custom classes for the controls
public class CreateEditItemTemplateDDL : ITemplate {
DataTable dtBind;
string strddlName;
string strSelectedID;
string strDataValueField;
string strDataTextField;
public CreateEditItemTemplateDDL(string DDLName,string DataValueField,string
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by: rn5a |
last post by:
A Form has a DataGrid which displays records from a SQL Server 2005 DB
table. Users can modify the records using this DataGrid for which I am
using EditCommandColumn in the DataGrid. This is the code:
<script runat="server">
Dim sqlConn As New SqlConnection(".....")
Sub Page_Load(ByVal obj As Object, ByVal ea As EventArgs)
If Not (Page.IsPostBack) Then
FillDataGrid()
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by: zw |
last post by:
Hi
I have problems displaying binary values on cells on the GUI.
The program crashed with following dialog box:
"The following exception occurred in the DataGridView:
System.ArgumentException: Parameter is not valid
at System.Drawing.Image.FromStream(...
at System.Drawing.ImageConverter.ConvertFrom(...
at System.Windows.Forms.Formatter.FormatObjectInternal(...
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by: pozze |
last post by:
Hi,
I need to display images and other record information retrieved from an SQL 2005 database in a datagrid on a web page. I'm coding in VB .net I have recently changed over from VB ASP and i'm still getting used to .net
I can successfully upload images and other data into the SQL Database, I'm currently storing RecordID, File Name, Type of File (mime), File Size, and File Data.
I can retreive non binary data to a datagrid but I cannot...
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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,...
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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: 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: 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();...
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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: 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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