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John Joe
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16.2k
I am Trying to Search Record and Display in GridView
Apr 18 2013 5:09 AM
I am trying to search the record and display in GridView But I am getting an error :
Object reference not set to an instance of an object.
How do I solve this?
{
public partial class Search_Course : System.Web.UI.Page
{
public SqlConnection con;
string constr;
public void connection()
{
constr = ConfigurationManager.ConnectionStrings ["Records"].ToString();
con = new SqlConnection(constr);
con.Open();
}
protected void Page_Load(object sender, EventArgs e)
{
Label1.Visible = false;
}
private void rep_bind()
{
connection();
string query = "select * from Records where Name like'" + TextBox1.Text + "%'";
SqlDataAdapter da = new SqlDataAdapter(query, con);
DataSet ds = new DataSet();
da.Fill(ds);
GridView1.DataSource = ds;
GridView1.DataBind();
}
protected void Search_Click(object sender, EventArgs e)
{
connection();
string query = "select Name from Records where Name like'" + TextBox1.Text + "%'";
SqlCommand com = new SqlCommand(query, con);
SqlDataReader dr;
dr = com.ExecuteReader();
if (dr.HasRows)
{
dr.Read();
rep_bind();
GridView1.Visible = true;
TextBox1.Text = "";
}
else
{
GridView1.Visible = false;
Label1.Visible = true;
Label1.Text = "The search Term " + TextBox1.Text + " Is Not Available in the Records"; ;
}
}
}
}
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which is the Reference for ajax control toolkit
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