Question : SqlDataReader

I get following error from a code in code behind:

"The type 'System.Data.SqlClient.SqlDataReader' has no constructors defined"

What am I doing wrong?

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SqlDataReader reader1=new SqlDataReader();
if (type == 1)
{                           
reader1=projectDb.GetProjectByAuthor(authorId)        
}
else if (type == 2)
{
reader1 = projectDb.GetAllProjects()
}

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Answer : SqlDataReader

To your statement:,

"Then I get an error:
Use of unassigned local variable 'reader1'
The error happens in the line:
while (reader1.Read())"

The, Use of unassigned local variable 'reader1', is not an error, it should be reported as a Warning. To remove the Warning modify the statement to this:

SqlDataReader reader1 = null; // Will remove the warning