Reading xml from database

[Mukesh]

HI all

I am storing user info in database. for this i m using varchar(for
storing name , email , password etc.) and xml(UserDetail info ) datatypes.

dbo.User
........................
USEREMAIL VARCHAR PK
USERNAME VARCHAR
USERPWD VARCHAR
USERDETAILS XML




for retriving data i m using
this query "Select * from user where [email protected]"
in dataset dsCredentialData


string Name = dsCredentialData.Tables[0].Rows[0]["USERNAME"].tostring();
string

PrimaryEmail=dsCredentialData.Tables[0].Rows[0]["USEREMAIL"].tostring();
string UserPwd =dsCredentialData.Tables[0].Rows[0]["userpwd"].tostring();
Xml UserDetails= new Xml();

UserDetails.Document.LoadXml(dsCredentialData.Tables[0].Rows[0]["XmlTxt"].tostring());


after doing this i m getting this error

"Object reference not set to an instance of an object. "

PLease tell me how i can use this xml Userdetails As xml object without
saving it to disk


Thanks in advance..

 

[Walter Wang [MSFT]]

Hi Mukesh,

The error "Object reference not set to an instance of an object" probably
because the query result is empty. Try to debug your code and watch which
object is null;or you could create some intermediate variables:

DataTable dt = dsCredentialData.Tables[0];
DataRow dr = dt.Rows[0];
object dc = dr["XmlTxt"];

XmlDocument UserDetails = new XmlDocument();
UserDetails.LoadXml(dc.ToString());

And see which statement caused the NullReference exception.

Regards,
Walter Wang ([email protected], remove 'online.')
Microsoft Online Community Support

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[Walter Wang [MSFT]]

Hi Mukesh,

I am interested in this issue. Would you mind letting me know the result of
the suggestions? If you need further assistance, feel free to let me know.
I will be more than happy to be of assistance.

Have a great day!


Regards,
Walter Wang ([email protected], remove 'online.')
Microsoft Online Community Support

==================================================
When responding to posts, please "Reply to Group" via your newsreader so
that others may learn and benefit from your issue.
==================================================

This posting is provided "AS IS" with no warranties, and confers no rights.