No Search Results When Using A StroredProcedure

Hello! I am using this code to search the database but for some reason it's not liking the parameter I put there. Here is my code that works great with no parameters:

protected void getBusinessInfo()
    {
        DataSet ds;
        ds = SqlHelper.ExecuteDataset(connection, "spBusinessInfoSearch");
        gvSearch.DataSource = ds;
        gvSearch.DataBind();

    }

protected void btnSearch_Click(object sender, EventArgs e)
    {
        
        getBusinessInfo(txtName.Text);
    }

Here is what I put in the stored procedure:

ALTER PROCEDURE dbo.spBusinessInfoSearch

 

ASSELECT * from vwUserprofileInfo where DisplayName like '%Eric%'

 

RETURN

Now, when I used the same code with paramers nothing is returned.

protected void getBusinessInfo(string param1)
    {
        DataSet ds;
        ds = SqlHelper.ExecuteDataset(connection, "spBusinessInfoSearch", new SqlParameter("@DisplayName", param1));
        gvSearch.DataSource = ds;
        gvSearch.DataBind();

    }

protected void btnSearch_Click(object sender, EventArgs e)
    {
        
        getBusinessInfo(txtName.Text);
    }