Hi all,
I am just wandering, is it possible to programmatically detect each
column's data type of SalDataReader, DataSet.Tables[i], DataTable?
Thanks for any suggestion!
--
WWW: http://hardywang.1accesshost.com
ICQ: 3359839
yours Hardy 5 10361
Hi,
There is SqlDataReader.GetFieldType method and DataColumn.DataType property.
--
Miha Markic [MVP C#] - RightHand .NET consulting & software development
miha at rthand com www.rthand.com
"Hardy Wang" <ha********@marketrend.com> wrote in message
news:eh****************@TK2MSFTNGP11.phx.gbl... Hi all, I am just wandering, is it possible to programmatically detect each column's data type of SalDataReader, DataSet.Tables[i], DataTable? Thanks for any suggestion!
-- WWW: http://hardywang.1accesshost.com ICQ: 3359839 yours Hardy
Thanks, I found another wway like:
object o = dataReader.GetValue(i);
Type t = o.GetType();
t.FullName;
I think they work pretty the same way.
--
WWW: http://hardywang.1accesshost.com
ICQ: 3359839
yours Hardy
"Miha Markic [MVP C#]" <miha at rthand com> wrote in message
news:uN**************@TK2MSFTNGP09.phx.gbl... Hi,
There is SqlDataReader.GetFieldType method and DataColumn.DataType
property. -- Miha Markic [MVP C#] - RightHand .NET consulting & software development miha at rthand com www.rthand.com
"Hardy Wang" <ha********@marketrend.com> wrote in message news:eh****************@TK2MSFTNGP11.phx.gbl... Hi all, I am just wandering, is it possible to programmatically detect each column's data type of SalDataReader, DataSet.Tables[i], DataTable? Thanks for any suggestion!
-- WWW: http://hardywang.1accesshost.com ICQ: 3359839 yours Hardy
Hardy Wang <ha********@marketrend.com> wrote: Thanks, I found another wway like: object o = dataReader.GetValue(i); Type t = o.GetType(); t.FullName;
I think they work pretty the same way.
Not necessarily - if the value is DbNull, for instance, that will give
a very different result.
--
Jon Skeet - <sk***@pobox.com> http://www.pobox.com/~skeet
If replying to the group, please do not mail me too
I ran some test. If the result is null, it will return DBNull, this is also
what I need.
--
WWW: http://hardywang.1accesshost.com
ICQ: 3359839
yours Hardy
"Jon Skeet [C# MVP]" <sk***@pobox.com> wrote in message
news:MP************************@msnews.microsoft.c om... Hardy Wang <ha********@marketrend.com> wrote: Thanks, I found another wway like: object o = dataReader.GetValue(i); Type t = o.GetType(); t.FullName;
I think they work pretty the same way.
Not necessarily - if the value is DbNull, for instance, that will give a very different result.
-- Jon Skeet - <sk***@pobox.com> http://www.pobox.com/~skeet If replying to the group, please do not mail me too
Hardy Wang <ha********@marketrend.com> wrote: I ran some test. If the result is null, it will return DBNull, this is also what I need.
If that's what you need, that's fine - but it's certainly not what you
originally asked for (the column type) nor is it what Miha's code would
have given you.
--
Jon Skeet - <sk***@pobox.com> http://www.pobox.com/~skeet
If replying to the group, please do not mail me too This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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...
|
by: Joe |
last post by:
Hi All,
I am new to using the Access DB and I need some help if someone
is able to give it to me. What I want to do is get the names of
the columns of certain tables. Not the data in the table...
|
by: Hutty |
last post by:
I've looked around and have yet to find anything that would answer my
question regarding formating a column in a datagrid. My grid looks like
this as far as data"
AMHQCON|51300.01|-3147
The...
|
by: Tim::.. |
last post by:
I currently have the following datagrid but want to turn the name and email
column into a hyperlink in the codebehind!
Can someone please tell me how I achieve this!
Thanks
Private Sub...
|
by: Geoff Jones |
last post by:
Hi
Can anybody help me with the following, hopefully simple, question?
I have a table which I've connected to a dataset. I wish to add a new column
to the beginning of the table
and to fill...
|
by: Larry Bird |
last post by:
I've created a AlertDataClass below within the class I have tables and column that I've create. In the AlertDataAccess class I'm trying to insert data into my tables. AlertDataAccess is a Module...
|
by: eBob.com |
last post by:
I've got the basics of an XML ini file working. I.E. I can stash away
and retrieve user preferences. (Code below.) But how do I handle a
new preference? Say I have A and B. And then I invent...
|
by: michael sorens |
last post by:
I have successfully bound an XmlDocument to a DataGridView but all fields
seem to be strings. I want to retrofit appropriate datatypes on some of
the fields. Let me take this in 2 parts.
Part...
|
by: =?Utf-8?B?UmljaCBIdXRjaGlucw==?= |
last post by:
I'm not really sure how to ask this question because I'm still getting my
feet wet with data access and VB.NET, but here goes:
To start off with, I'm using VB 2005 Express to connect to an Access...
|
by: DolphinDB |
last post by:
Tired of spending countless mintues downsampling your data? Look no further!
In this article, you’ll learn how to efficiently downsample 6.48 billion high-frequency records to 61 million...
|
by: ryjfgjl |
last post by:
ExcelToDatabase: batch import excel into database automatically...
|
by: isladogs |
last post by:
The next Access Europe meeting will be on Wednesday 6 Mar 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM).
In this month's session, we are pleased to welcome back...
|
by: Vimpel783 |
last post by:
Hello!
Guys, I found this code on the Internet, but I need to modify it a little. It works well, the problem is this: Data is sent from only one cell, in this case B5, but it is necessary that data...
|
by: jfyes |
last post by:
As a hardware engineer, after seeing that CEIWEI recently released a new tool for Modbus RTU Over TCP/UDP filtering and monitoring, I actively went to its official website to take a look. It turned...
|
by: ArrayDB |
last post by:
The error message I've encountered is; ERROR:root:Error generating model response: exception: access violation writing 0x0000000000005140, which seems to be indicative of an access violation...
|
by: CloudSolutions |
last post by:
Introduction:
For many beginners and individual users, requiring a credit card and email registration may pose a barrier when starting to use cloud servers. However, some cloud server providers now...
|
by: Defcon1945 |
last post by:
I'm trying to learn Python using Pycharm but import shutil doesn't work
|
by: Shællîpôpï 09 |
last post by:
If u are using a keypad phone, how do u turn on JavaScript, to access features like WhatsApp, Facebook, Instagram....
| | |