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by: Christoph Boget |
last post by:
I am getting an error (a few among many) for the
following lines of code:
retval.BrokerName = (( curRow ==
System.DBNull.Value ) ? SqlString.Null : (string)curRow );
retval.BrokerGroupId = (( curRow ==
System.DBNull.Value ) ? SqlInt32.Null : (int)curRow );
The errors are (in turn):
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by: |
last post by:
Source Error:
Line 173: sData(rownumber - 1, lcnt) = WhatCol.Value
Line 174: End IF
Line 175: If (sData(rownumber, lcnt) = sData(rownumber - 1,
lcnt)) AND (WhatCol.Type <> 5 AND WhatCol.Type <> 6) Then
Line 176: If rownumber = 3 Then
Line 177: thisfield = WhatCol.Value
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by: tshad |
last post by:
The error I am getting is:
*******************************************************************
Exception Details: System.InvalidCastException: Cast from type 'DBNull' to
type 'String' is not valid.
Source Error:
Line 144: firstName.text = ClientReader("firstName")
Line 145: lastName.text = ClientReader("lastName")
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by: Bob Day |
last post by:
VS 2003, sql
How do you determine the data type of a column if its value is DBNull?
1)Table:
Column1 STRING non-nullable
2) Fill to a DataSet via DataAdapter
3) dim Data_Type_Is as object
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by: Bob |
last post by:
I'm sure there's a good reason, I just haven't been able to think of it -
why didn't MS allow "DBNull" values to simply be a null (Nothing)?
Bob
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by: ibiza |
last post by:
Hi all,
I'm using a business logic layer as described in this source code :
http://www.asp.net/QuickStart/util/srcview.aspx?path=~/aspnet/samples/data/GridViewObject.src&file=GridViewObject_cs\App_Code\AuthorsComponent.cs&lang=C%23+Source
It works very well until I encountered a small problem recently. When
it is time to bind the data from the db to my class representing an
"author" (let's say, for simplicity), what about if my row...
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by: Chris |
last post by:
Hi again,
I want to read all the records of a table with 2 fields.
The problem is that some records have null value in the second field.
This code below works when all records have both fields fiilled, but gives
the error:
"Conversion from type 'DBNull' to type 'String' is not valid" when not.
.....
comd = New System.Data.OleDb.OleDbCommand("select name,lok from pc",
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by: SAL |
last post by:
I'm sorry if this has been answered before but I didn't see it in a quick
scan of the list.
The following code is causing an error when the field is null:
Error text:
Conversion from type 'DBNull' to type 'Date' is not valid.
<asp:Calendar ID="Calendar2" runat="server" SelectedDate='<%#
Bind("DateReceived") %>'
VisibleDate='<%# Eval("DateReceived") %>'></asp:Calendar>
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by: Michel Vanderbeke |
last post by:
Hello,
When reading data from a SqlClient.SqlDataReader in VB.NET 2005, I want to
display fiels that sometimes are empty.
sUser = CStr(rdUser("Name") & Space(1) & CStr(rdUser("First_Name")
When the First_Name of a user is empty, I get an error telling me type
DBNull cannot be converted to String.
Is there a way of solving this problem?
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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: 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.
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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...
|
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: 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: 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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