页面传值的问题

Question

protected void Button1_Click(object sender, EventArgs e)
    {
        dt=NumberBO.SearchString(0, "2");//从数据库中得到数据填充DATATABLE
        GRIDVIEW1.DataSource = dt;
        GRIDVIEW1.DataBind();
    }

Answer 1

建议改成这样：
 protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            GRIDVIEW1.DataSource = dt;
            GRIDVIEW1.DataBind();
        }        
    }
    protected void GRIDVIEW1_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        if (ShowAllTel.EditIndex != -1)
        {
            e.Cancel = true;
            int newPageNumber = e.NewPageIndex + 1;
        }
        else
        {
            GRIDVIEW1.PageIndex = e.NewPageIndex;
            GRIDVIEW1.DataSource = dt;
            GRIDVIEW1.DataBind();
        }
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        dt=NumberBO.SearchString(0, "2");//从数据库中得到数据填充DATATABLE
      //  Page_Load(sender, e);
       GRIDVIEW1.DataSource = dt;
       GRIDVIEW1.DataBind();
    }
protected void Button2_Click(object sender, EventArgs e)
    {
        dt=NumberBO.SearchString(0, "3");//从数据库中得到数据填充DATATABLE
       GRIDVIEW1.DataSource = dt;
       GRIDVIEW1.DataBind();
    }