Reading Excel by OLEDB reads strings as DBNull

Posted by Sathish on Stack Overflow See other posts from Stack Overflow or by Sathish
Published on 2010-06-02T06:48:00Z Indexed on 2010/06/02 6:53 UTC
Read the original article Hit count: 170

Filed under:

c#

I am reading Excel file using OLEDB in Csharp i have shown the sample excel data what i have

F1    F2    F3    F4
India 23    44    4
China 4     8     Month 6
USA   45    Neg   4

When i read this data and check in my DataTable i get Null values for "Month 6" and "Neg" where as i can be able get the F1 column correctly... my connection string is as shown

Provider=Microsoft.ACE.OLEDB.12.0;Data Source=[XLSource];Extended Properties=Excel 12.0;

Related posts about c#

.NET WebRequest.PreAuthenticate not quite what it sounds like

as seen on West-Wind - Search for 'West-Wind'
I’ve run into the problem a few times now: How to pre-authenticate .NET WebRequest calls doing an HTTP call to the server – essentially send authentication credentials on the very first request instead of waiting for a server challenge first? At first glance this sound like it should be easy:… >>> More
HttpWebRequest and Ignoring SSL Certificate Errors

as seen on West-Wind - Search for 'West-Wind'
Man I can't believe this. I'm still mucking around with OFX servers and it drives me absolutely crazy how some these servers are just so unbelievably misconfigured. I've recently hit three different 3 major brokerages which fail HTTP validation with bad or corrupt certificates at least according to… >>> More
Dynamic Type to do away with Reflection

as seen on West-Wind - Search for 'West-Wind'
The dynamic type in C# 4.0 is a welcome addition to the language. One thing I’ve been doing a lot with it is to remove explicit Reflection code that’s often necessary when you ‘dynamically’ need to walk and object hierarchy. In the past I’ve had a number of ReflectionUtils that used string based expressions… >>> More
The dynamic Type in C# Simplifies COM Member Access from Visual FoxPro

as seen on West-Wind - Search for 'West-Wind'
I’ve written quite a bit about Visual FoxPro interoperating with .NET in the past both for ASP.NET interacting with Visual FoxPro COM objects as well as Visual FoxPro calling into .NET code via COM Interop. COM Interop with Visual FoxPro has a number of problems but one of them at least got a lot… >>> More
Finding a Relative Path in .NET

as seen on West-Wind - Search for 'West-Wind'
Here’s a nice and simple path utility that I’ve needed in a number of applications: I need to find a relative path based on a base path. So if I’m working in a folder called c:\temp\templates\ and I want to find a relative path for c:\temp\templates\subdir\test.txt I want to receive back subdir\test… >>> More

Developer IT

Reading Excel by OLEDB reads strings as DBNull - Developer IT

Reading Excel by OLEDB reads strings as DBNull

c#

Related posts about c#

.NET WebRequest.PreAuthenticate not quite what it sounds like

HttpWebRequest and Ignoring SSL Certificate Errors

Dynamic Type to do away with Reflection

The dynamic Type in C# Simplifies COM Member Access from Visual FoxPro

Finding a Relative Path in .NET

Categories cloud