动态将SQL语句用于SQLDataSource

Question

I may or may not have a pretty simple question here for you guys. Basing my if-else statements off of the existence of a string, I am trying to either call a SELECT statement with a parameter or not and pass them both to the same resulting GridView.

Here is what I am trying to do:

 string query;
 if(BadgeNumLabel.Text != "")
 {
     query = "SELECT * FROM AUDITS";
 else
 {
     query = "SELECT * FROM AUDITS WHERE BADGENUM = :BadgeNumLabel";
     GridDataSource.SelectParameters.Add(new Parameter("BadgeNumLabel",TypeCode.String, BadgeNumLabel.Text));
 }

 GridDataSource.SelectCommand = query;
 GridView1.DataBind();

My .aspx code looks like this:

 <asp:SqlDataSource ID="GridDataSource" runat="server"
            ConnectionString="<%$ ConnectionStrings:OracleConnectionString %>" 
            ProviderName="<%$ ConnectionStrings:OracleConnectionString.ProviderName %>"  
            onselecting="GridDataSource_Selecting">


        </asp:SqlDataSource>  

Is there something I am missing? I am so stumped. I think it has to do something with passing the parameter BadgeNumLabel around but I'm not sure.

Any help is greatly appreciated! Thanks!

Answer 1

You need to assign the result of the GridDataSource to the GridView1.DataSource

SqlConnection sqlConnection1 = new SqlConnection("Your Connection String");
SqlCommand GridDataSource= new SqlCommand();

GridDataSource.CommandText = "SELECT * FROM AUDITS";
GridDataSource.CommandType = CommandType.Text;
GridDataSource.Connection = sqlConnection1;

sqlConnection1.Open();

GridView1.DataSource = GridDataSource.ExecuteReader();
GridView1.DataBind();

EDIT

It's not literally ExecuteCommand, what I try to say is that you need to assign the result of the SqlCommand to the GridView