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Can't pass ntext getting conversion error

Posted on 2008-10-02
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Last Modified: 2013-11-07
I'm using a DataAdapter and am trying to pass through a parameter which is accepted as ntext by the stored procedure

The value I have in the page is a string, which I know is converted to an ntext in C# when it exceeds the 4000 limit. In this case that will happen

adding paramter as such

da.SelectCommand.Parameters.Add("@purchases", SqlDbType.NText);
da.SelectCommand.Parameters["@purchases"].Value = purchases;

When it gets to a value for "purchases" that has been converted to ntext I get the following error:

SqlException: Implicit conversion from data type ntext to varchar is not allowed. Use the CONVERT function to run this query

But I'm explicitly trying to pass it as ntext as the sqldbtype, right? How do I convert this string variable "purchases" into the appropriate value

thanks in advance
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Question by:animated405
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3 Comments
 
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Accepted Solution

by:
Jaime Olivares earned 2000 total points
ID: 22629634
change your select command from:
    SELECT * FROM YOURTABLE WHERE YourNTextField = @purchases
To:
    SELECT * FROM YOURTABLE WHERE YourNTextField = CONVERT(NTEXT, @purchases)

then you ca use:

da.SelectCommand.Parameters.Add("@purchases", SqlDbType.Varchar);
da.SelectCommand.Parameters["@purchases"].Value = purchases;
0
 

Author Comment

by:animated405
ID: 22688111
yeah tried it but it didn't work, which I don't get. I need to step through the code just got busy on other stuff right after I wrote this. I will check it out soon and provide a response. Not trying to chince out...
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Author Comment

by:animated405
ID: 22745518
i am apparently never going to get back to this. thanks again
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