Problem at datagrid.databind() function in ASP.NET

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C#

 query = "select Region,Service_Provider,File_Name from Upload_Cdr_Detail where Case_Name='" + Session["case_name"].ToString().Trim() + "'";
DataTable dt1 = data_obj.SelectTableValue(query, "Upload_Cdr_Detail");

GridView1.DataSource = dt1;
GridView1.DataBind();

There is DAtaTable giving proper result. But GridView1.DataBind() is giving Error.
Error : A field or property with the name 'Id' was not found on the selected data source.

What I have tried:

Why giving Error and how to remove it?

Posted 3-Jun-16 20:59pm

Member 12564844

Updated 4-Jun-16 1:32am

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OriginalGriff · Answer 1 · 2016-06-03T22:03:00

Two things:
First, never concatenate strings to build a SQL command. It leaves you wide open to accidental or deliberate SQL Injection attack which can destroy your entire database. Use Parametrized queries instead. Particularly on a web based solution where anyone in the world has access...

Secondly, the error message is very explicit:

A field or property with the name 'Id' was not found on the selected data source

Since your SELECT statement doesn't return an ID field, you need to look at how you have set up the GridView to find out why it is trying to access a column with that name. Or add the ID to the SELECT...

Tushar sangani · Answer 2 · 2016-06-04T01:32:00

problem is in your query you are not fetch id from database.
check bellow. solution

C#

 query = "select Id,Region,Service_Provider,File_Name from Upload_Cdr_Detail where Case_Name='" + Session["case_name"].ToString().Trim() + "'";
DataTable dt1 = data_obj.SelectTableValue(query, "Upload_Cdr_Detail");
 
GridView1.DataSource = dt1;
GridView1.DataBind();

or

C#

query = "select * from Upload_Cdr_Detail where Case_Name='" + Session["case_name"].ToString().Trim() + "'";
DataTable dt1 = data_obj.SelectTableValue(query, &quot;Upload_Cdr_Detail&quot;);
 
GridView1.DataSource = dt1;
GridView1.DataBind();

Problem at datagrid.databind() function in ASP.NET

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