by: jim |
last post by:
This line of code returns error 13, cast from 'DBNull' to type 'String' is not valid
If IsDBNull(Clinics.Clinics.Item(A).Workphone) The
<other code
End I
Clinics.Clinics is a dataset that...
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by: DraguVaso |
last post by:
Hi,
Something I don't understand about a Typed DataSet: When a value in the
DataSet is DBNull, it throws this error: "Cannot get value because it is
DBNull".
But aren't Typed DataSets...
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by: Mark |
last post by:
Assume that "some_app_setting" does not exist in my web.config file. Then,
the first line of code below assigns the value null to strApplication. Why
doesn't my IF statement return true, and...
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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...
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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...
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by: giant food |
last post by:
since I can't specify an integer to be null (i.e. undefined), I'd like
to create a structure that provides the same functionality, like:
Public Structure NullableInt
Private i As Integer...
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by: tshad |
last post by:
I have a value coming from my Object (or it could also be from a
SqlDbReader) where I need to test for DBNull and 0.
I tried to do it in one call:
if (not (newPosition.ReportsTo is...
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by: Charlie Brown |
last post by:
When checking for NULL values from a database, normally I would use
If Not row("NetSales") Is DBNull.Value Then
NetSales = row("NetSales")
End If
However, if I use a typed dataset then I...
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by: Dave |
last post by:
If Iwant to check if dataset1.SelectQuery1.column1 ==
System.DBNull.Value. How do I do this? What I wrote above will give an error.
--
L. A. Jones
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by: Charles Arthur |
last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
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by: BarryA |
last post by:
What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...
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by: nemocccc |
last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
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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,...
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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...
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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,...
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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...
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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...
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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,...
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