Cannot implicitly convert type 'object' to 'System.Data.DataSet'. An explicit conversion exists (are you missing a cast?)

Question

3.00/5 (2 votes)

See more:

Hello,
i have a code in vb.net :

VB

Dim oDs As DataSet = GridView1.DataSource

and when i run this code,it shows no error.

when i convert to c-sharp :

DataSet oDs = GridView1.DataSource;<br />

it shows error:
Cannot implicitly convert type 'object' to 'System.Data.DataSet'. An explicit conversion exists (are you missing a cast?)

can anyone help me on this,i had been scratching my head for 2 days for this..i dont understand what is the cast means,what should we do with the code.

Posted 2-May-11 2:18am

pwtc222

Add a Solution

Comments

Jason Vetter 2-May-11 9:18am

Had you been using Option Strict On and Option Explicit On as you ALWAYS should be you would have caught the same error.

Dim oDs As DataSet = DirectCast(GridView1.DataSource, DataSet)

3 solutions

Solution 3

Try this:

Dataset ds=new Dataset();

//Write your query..

gridview1.dataSource=ds;

Posted 2-May-11 2:37am

vj.negi08

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Ankit Rajput · Accepted Answer · 2011-05-02T02:22:00

Solution 2

Hi,

This is working with VB because in VB implicit conversion exists.
But in case of C#, you need to provide type cast information.
In C#, There is no implicit conversion.

Try this code

DataSet oDs = (DataSet)GridView1.DataSource;

It might help you.

Regards
AR

Posted 2-May-11 2:22am

Ankit Rajput

Updated 2-May-11 2:23am

v2

Comments

pwtc222 2-May-11 8:38am

thanks dude..that works :-)

**R. Giskard Reventlov** · Accepted Answer · 2011-05-02T02:20:00

Solution 1

Try:

DataSet oDs = (DataSet)GridView1.DataSource;

Posted 2-May-11 2:20am

R. Giskard Reventlov

Comments

pwtc222 2-May-11 8:39am

Thanks friend..that works..really appreciate it :-)

Member 11011853 3-Jun-15 4:25am

Hi...

GVemp.DataSource= ef.Select_EmpId(eid);
DataTable t = (DataTable)GVemp.DataSource;
txtAddress.Text = t.Rows[0]["Address"].ToString();
txtName.Text = t.Rows[0]["EmpName"].ToString();

i converted object type to datatable type in the above code, but i shows error as cant convert object type to datatable type...

Any help appreciated...!

thank u...!

R. Giskard Reventlov 3-Jun-15 10:36am

Try something like:

DataSet ds = (DataSet)GVemp.DataSource;
DataTable dt = ds.Tables[0];