Cast from Object to DataSEt

[Guest]

I need to put the Data Source of a DataGrid into a DataSet variable. I have
tried the follwoing code but I get and error:

DataSet ds = (DataSet)Convert.ChangeType(this.dgChgMgmt.DataSource,
typeof(DataSet));

The error is:
A first chance exception of type 'System.InvalidCastException' occurred in
mscorlib.dll

How can I fix this? I am using Framework 1.1.

 

[Greg Young]

You should be able to just use

DataSet ds = (DataSet) this.dgChgMgmt.DataSource;

unless you are doing some really off things ... are you sure that your
DataSource is a dataset and not say a datatable?

What does ...

Console.WriteLine( this.dgChgMgmt.DataSource.GetType().ToString()) print
out?

Cheers,

Greg Young
MVP - C#
http://codebetter.com/blogs/gregyoung

 

[chanmm]

Maybe you want to use clone instead of cast?
http://msdn2.microsoft.com/en-us/library/system.data.dataset.clone(d=ide).aspx

chanmm

 

[Guest]

You are correct on both counts. I am binding to a table and I was trying to
make the code more difficult than it had to be.

Thanks for you helpful response.
--
Robert Hill

You should be able to just use

DataSet ds = (DataSet) this.dgChgMgmt.DataSource;

unless you are doing some really off things ... are you sure that your
DataSource is a dataset and not say a datatable?

What does ...

Console.WriteLine( this.dgChgMgmt.DataSource.GetType().ToString()) print
out?

Cheers,

Greg Young
MVP - C#
http://codebetter.com/blogs/gregyoung