using System.Data; //DataTable

try
{
    DataTable dt = new DataTable();
    dt.Columns.Add("BusinessID",System.Type.GetType("System.Int32"));
    dt.Columns.Add("BusinessName", System.Type.GetType("System.String"));
    dt.Columns.Add("BusinessStatus", System.Type.GetType("System.Int32"));
    dt.Columns.Add("BusinessLogoUrl", System.Type.GetType("System.String"));
    dt.Rows.Add(new object[] { 1, "废话充值", 0, "../Images/Business/1.png" });
    dt.Rows.Add(new object[] { 2, "口水缴费", 0, "../Images/Business/2.png" });

    if (dt.Rows.Count > 0)
    {
        Repeater_Business.DataSource = dt;
        Repeater_Business.DataBind();
    }
    else
    {
        Response.Write("<script>alert('dt没数据');</script>");
    }
    
    }
    catch (Exception ex)
    {
        Response.Write("Error:" + ex.Message.ToString());
    }           
}

PS:

dt.Columns.Add("BusinessID",System.Type.GetType("System.Int32"));

写成 ->

dt.Columns.Add("BusinessID",System.Type.GetType("System.Int"));

后面的Int32改成Int,可能会出现这样的Error:

“dataType”参数不能为空。参数名: dataType