search data according to three fields

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hey my problem is that
i create a dropdown , a text box with ajax calender exdender and a passport with textbox and a search button and their is a database table applicant
when i am fill this three fields with select dropdown item that is binded and select date and fill passport then i click on search button my code is bellow(and i have also create a view where i convert date according to match their name is vw_ApplicantDetails and convert date column is v_ApplicationDate)VisaTypeNeeded_FK is foreign key

C#

string strSql = string.Empty;
       ddpl = visatype.SelectedItem.Value;
       strSql = "select * from vw_ApplicantDetails where AssignedTo = 'E' and     v_ApplicationDate='" + TextBox1.Text.ToString() + "' and Passport='" +  passport.Text.ToString() + "' and VisaTypeNeeded_FK='" +  visatype.SelectedItem.Value + "'";

       SqlCommand cmd = new SqlCommand(strSql);
       SqlDataAdapter adapter = new SqlDataAdapter(cmd);
       DataSet ds = new DataSet();
       adapter.Fill(ds, "Applicant");
       GridView1.DataSource = ds.Tables["Applicant"];
       GridView1.DataBind();

it show the error

Fill: SelectCommand.Connection property has not been initialized.

please anyone help me..

Posted 24-Jul-12 21:37pm

Member 9208931

Updated 24-Jul-12 21:42pm

Prasad_Kulkarni

v2

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Member 9208931 25-Jul-12 5:04am

i have used this but it will show the same problem that
Fill: SelectCommand.Connection property has not been initialized.

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Prasad_Kulkarni · Answer 1 · 2012-07-24T21:48:00

Where is your connection string?

C#

SqlConnection cn = new SqlConnection(YourConnectionString)

Try something like this:

C#

cn.open();//Open connection
SqlCommand cmd = new SqlCommand(strSql);
SqlDataAdapter adapter = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
adapter.Fill(ds, "Applicant");
GridView1.DataSource = ds.Tables["Applicant"];
GridView1.DataBind();
cn.close()//close connection