如何使用ASP.NET GridView、RDLC打印多个报表？

Question

我想打印基于GridView复选框的报表。如果选择了3行，应该有3个报告。我的代码是这样的...

protected void btn_Print_Click(object sender, EventArgs e)
    {
        if (IsPostBack)
        {
            try
            {
                foreach (GridViewRow gvr in grdRV.Rows)
                {
                    RadioButton rbID = (RadioButton)gvr.FindControl("rbID") as RadioButton;

                    if (rbID != null && rbID.Checked)
                    {
                        string sID = grdRV.DataKeys[gvr.RowIndex].Value.ToString().Trim();

                        if (rbl_Print.SelectedValue == "0")
                        {
                            SMTP(sID);
                        }
                        else if (rbl_Print.SelectedValue == "1")
                        {
                            Material(sID);
                        }
                    }
                 }
            }
            catch (Exception ex)
            {
                Session["error"] = ex.Message;
                Response.Redirect("MessageBoard.aspx");
            }
        }
    }

private void Material(string sID)
    {            

        string querystring = "../pmis/Reports/RptRFQMatV.aspx?RFQNo=" + lblRFQNo.Text.ToString() + "&ID=" + sID;

        Random r = new Random();            
        string Script = "";
        Script += "<script language=JavaScript id='PopupWindow'>";
        Script += "confirmWin = window.open(' " + querystring + "','" + r.Next() + "','scrollbars=yes,resizable=1, width=960,height=500,left=50,top=130,status');";
        Script += "confirmWin.Setfocus()</script>";

        //ClientScript.RegisterStartupScript(typeof(string), "PopupScript", "PopupWindow");
        if (!ClientScript.IsClientScriptBlockRegistered("PopupWindow"))
            ClientScript.RegisterClientScriptBlock(typeof(string), "PopupWindow", Script);
    }

...但目前这段代码只能打印最后一行的报告。

Answer 1

我测试了这一点，它确实打开了三个窗口，你必须调整一下，通过向Material传递一个选定的ID列表，这样你只需要调用Material一次。在你的字符串操作中的Material里面，在下面一行之后。

Script += "<script language=JavaScript id='PopupWindow'>";

添加一个for循环，通过选定的ID，并添加一个window.open.Inside的循环。因此，在forforeach循环中应该有以下几行文字

string querystring = "../pmis/Reports/RptRFQMatV.aspx?RFQNo=" + lblRFQNo.Text.ToString() + "&ID=" + sID;


Script += "confirmWin = window.open(' " + querystring + "','" + r.Next() + "','scrollbars=yes,resizable=1, width=960,height=500,left=50,top=130,status');";

然后下面的行在for循环之外。

Script += "confirmWin.Setfocus()</script>";

        //ClientScript.RegisterStartupScript(typeof(string), "PopupScript", "PopupWindow");
        if (!ClientScript.IsClientScriptBlockRegistered("PopupWindow"))
            ClientScript.RegisterClientScriptBlock(typeof(string), "PopupWindow", Script);

这是我的例子，可以用。另外，如果你用StringBuilder代替string +=会更好。

        string Script = "";
        Script += "<script language=JavaScript id='PopupWindow'>";
        Script += "window.open('www.google.com.au', '1','scrollbars=yes,resizable=1, width=960,height=500,left=50,top=130,status');";
        Script += "window.open('www.yahoo.com','2','scrollbars=yes,resizable=1, width=960,height=500,left=50,top=130,status');";
        Script += "window.open('www.stackoverflow.com','3', 'scrollbars=yes,resizable=1, width=960,height=500,left=50,top=130,status');";
        Script += "</script>";

        if (!ClientScript.IsClientScriptBlockRegistered("PopupWindow"))
            ClientScript.RegisterClientScriptBlock(typeof(string), "PopupWindow", Script);

希望对你有所帮助。