No mapping exists from object type System.Web.UI.WebControls.TextBox to a known managed provider native type.

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Dear All,

I am getting the the message on the command:

C#

cmd.ExecuteNonQuery();

Complete message is:

HTML

No mapping exists from object type System.Web.UI.WebControls.TextBox to
a known managed provider native type.

This is with 2008 Express edition of ASP.NET using C#.

The SQL connection string is:

C#

Data Source=RMM-PC-343\SQLEXPRESS1;Initial Catalog=Student_Result;Integrated Security=True;

What do I need to correct this?

Thanks,
Zaid Qureshi

Posted 27-Sep-12 23:19pm

zaid Qureshi

Updated 27-Sep-12 23:33pm

Kenneth Haugland

v2

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Abhijit Parab 28-Sep-12 5:34am

It would be better if you provide some code for given problem

1 solution

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Sandeep Mewara · Answer 1 · 2012-09-29T08:41:00

Most of the times the reason behind this error is passing object instead of specific value of that object.

For example, based on the line of error, you might have prepared a SQL query with parameters. While assigning values to those parameters, if you assign the textbox directly (instead of textbox Text), above error will occur.

So, try:

C#

cmd.Parameters.AddWithValue("@someParam", TextBox1.Text)

Check and try!