Unhandeled Exception by user

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Here is my code where I am getting an error that says Unhandled by the user.

string connection =  "Data Source=C:\\Documents andSettings\\Administrator\\My Documents\\my1.mdb";
string cl = DropDownList1.SelectedItem.Text;
string query= "Select * from fee where course='cl'"; AccessDataSource ads = new AccessDataSource("C:\\Documents and Settings\\Administrator\\My Documents\\my1.mdb", query);
GridView1.DataSource = ads;
GridView1.DataSourceID = String.Empty;
GridView1.DataBind();

Here I want to get string from dropdownlist. And in database there is one coloum named course. I want to fetch data for that particular course.

[edit]Code block added, "Ignore HTML..." option disabled - OriginalGriff[/edit]

Posted 27-Mar-11 21:11pm

abhiamity86

Updated 27-Mar-11 21:33pm

Sandeep Mewara

v3

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^That's **Aragon** · Answer 1 · 2011-03-27T21:29:00

Solution 1

You need to change like below to pass the dropdown list value to database. Below in highlighted with underline.

MIDL

string connection = "Data Source=C:\\Documents andSettings\\Administrator\\My Documents\\my1.mdb";
          string cl = DropDownList1.SelectedItem.Text;
          string query = "Select * from fee where course=" + c1; AccessDataSource ads = new AccessDataSource("C:\\Documents and Settings\\Administrator\\My Documents\\my1.mdb", query);
          GridView1.DataSource = ads;
          GridView1.DataSourceID = String.Empty;
          GridView1.DataBind();

Hope it helps.

Posted 27-Mar-11 21:29pm

^That's Aragon

Comments

abhiamity86 28-Mar-11 4:14am

Thanks For helping me.
But it is again giving same exception.

abhiamity86 28-Mar-11 4:34am

My main issue is when i am writing exactely course name rather than variable then it is working fine.
But when i use variable then it is giving exception.
Pls help me.
Thanks In Advance.

^That's Aragon 28-Mar-11 5:44am

There might be some reason for this kind of issue.
1) Make sure dropdown list values are same as course column in the database. i.e. no spelling mistake in that.
2) Debug the source code and get the "c1" i.e. dropdown selected item text. Make sure that is what you are going to search for.
3) Please post your exception, so that one can help you better way.