在Asp.net中,从A页面中弹出B页面,在B页面中选择数据后,关闭并将数据更新到A页面,是一种常用 的方式。只是我对Javascript不熟悉,所以捣鼓了一下午,终于有了一点成绩:
测试项目有两个页面:Default.aspx及Default2.aspx,在Default.aspx页面上有一个TextBox1及一个Button1,Button1用于触发Default2.aspx,TextBox1用于接收从子页面传回的值。
Button1的代码如下:
StringBuilder s = new StringBuilder();
s.Append("<script language=javascript>");
s.Append("var a=window.showModalDialog('Default2.aspx');");
s.Append("if(a!=null)");
s.Append("document.all('TextBox1').value=a;");
s.Append("</script>");
Type cstype = this.GetType();
ClientScriptManager cs = Page.ClientScript;
string sname = "lt";
if (!cs.IsStartupScriptRegistered(cstype, sname))
cs.RegisterStartupScript(cstype, sname, s.ToString());
Default2.aspx页面内有一个CheckBoxList1及一个Button1,Button1执行返回选择的CheckBoxList1的值,并将当前页面关闭。
代码如下:
protected void Button1_Click(object sender, EventArgs e)
{
StringBuilder s = new StringBuilder();
s.Append("<script language=javascript>" + "\n");
s.Append("window.returnValue='" + this.GetSelectValue() + "';" + "\n");
s.Append("window.close();"+"\n");
s.Append("</script>");
Type cstype = this.GetType();
ClientScriptManager cs = Page.ClientScript;
string csname = "ltype";
if (!cs.IsStartupScriptRegistered(cstype, csname))
cs.RegisterStartupScript(cstype, csname, s.ToString());
}
private string GetSelectValue()
{
string rvalue = "";
for (int i = 0; i < this.CheckBoxList1.Items.Count; i++)
{
if (this.CheckBoxList1.Items[i].Selected)
{
if (rvalue == "")
rvalue += this.CheckBoxList1.Items[i].Text;
else
rvalue += "," + this.CheckBoxList1.Items[i].Text;
}
}
return rvalue;
}
此时执行程序,在Default2.aspx中不会关闭且不能传回值,很重要的一点:
在head中,加入这一行:
<base target="_self" />
asp.net window.showModalDialog 后台用法(兼容谷歌浏览器)
- StringBuilder s = new StringBuilder();
- s.Append("<script language=javascript>");
- s.Append("var a=window.showModalDialog('selectnh.aspx?zhen=" + this.sxdw1.zj + "&cun=" + this.sxdw1.cj + "&zu=" + this.sxdw1.zu + "');");
- s.Append(@"//for chrome
- if(typeof(a) == 'undefined') {
- a = window.returnValue;
- }");
- s.Append("document.getElementById('txtcbfdb').value=a[0];");
- s.Append("document.getElementById('hdnhid').value=a[1];");
- s.Append("</script>");
- Type cstype = this.GetType();
- ClientScriptManager cs =this.ClientScript;
- string sname = "lt";
- if (!cs.IsStartupScriptRegistered(cstype, sname))
- cs.RegisterStartupScript(cstype, sname, s.ToString());
父页面
按钮事件代码
- StringBuilder s = new StringBuilder();
- s.Append("<script language=javascript>" + "\n");
- s.Append("var result=new Array; ");
- s.Append("result[0]="+this.ddlnh.SelectedItem.Text+";");
- s.Append("result[1]="+this.ddlnh.SelectedValue+";");
- s.Append(@"//for chrome
- if(window.opener != undefined) {window.opener.returnValue = result;window.opener.close();} else{");
- s.Append("window.returnValue=result;}" + "\n");
- s.Append("window.close();" + "\n");
- s.Append("</script>");
- Type cstype = this.GetType();
- ClientScriptManager cs = this.ClientScript;
- string csname = "ltype";
- if (!cs.IsStartupScriptRegistered(cstype, csname))
- cs.RegisterStartupScript(cstype, csname, s.ToString());
子页面 按钮事件代码
下面的传多个值的时候记得加‘’号
- StringBuilder s = new StringBuilder();
- s.Append("<script language=javascript>" + "\n");
- s.Append("var result=new Array(10); ");
- if (!string.IsNullOrEmpty(model.YWCBHT))
- {
- s.Append("result[0]=" + model.CBHTBM.Trim() + ";");//合同编码
- }
- else
- {
- s.Append("result[0]=" + model.JYQZBM.Trim() + ";");//经营权证编码
- }
- NEWLAND.BLL.T_dictionary zdbll = new NEWLAND.BLL.T_dictionary();
- s.Append("result[1]='" + zdbll.Getzd("承包经营权取得方式", model.CBFS).Trim() + "';");//承包方式
- string qzsj = model.CBKSRQ + "至" + model.CBJSRQ;
- s.Append("result[2]='" + qzsj + "';");
- s.Append("result[3]='" + model.CBFMC.Trim() + "';");
- s.Append("result[4]=" + model.LXDH.Trim() + ";");
- s.Append("result[5]='" + zdbll.Getzd("证件类型", model.CBFZJLX).Trim() + "';");
- s.Append("result[6]='" + model.CBFZJHM.Trim() + "';");
- s.Append("result[7]='" + model.CBFDZ.Trim() + "';");
- s.Append("result[8]='" + model.YZBM.Trim() + "';");
- NEWLAND.BLL.DK dkbll = new NEWLAND.BLL.DK();
- DataTable dkbt = dkbll.GetList("cbfdbid='"+this.ddlnh.SelectedValue+"'").Tables[0];
- if (dkbt.Rows.Count > 0)
- {
- string strs = "共"+dkbt.Rows.Count+"块";
- decimal htmj = 0;
- for (int t = 0; t < dkbt.Rows.Count; t++)
- {
- try
- {
- htmj += decimal.Parse(dkbt.Rows[t]["htmj"].ToString());
- }
- catch { }
- }
- strs +=htmj+ "亩";
- s.Append("result[9]='" + strs + "';");
- }
- else
- {
- string strs = "共0块0亩";
- s.Append("result[9]='" + strs + "';");
- }
- s.Append(@"//for chrome
- if(window.opener != undefined) {window.opener.returnValue = result;window.opener.close();} else{");
- s.Append("window.returnValue=result;}" + "\n");
- s.Append("window.close();" + "\n");
- s.Append("</script>");
- Type cstype = this.GetType();
- ClientScriptManager cs = this.ClientScript;
- string csname = "ltype";
- if (!cs.IsStartupScriptRegistered(cstype, csname))
- cs.RegisterStartupScript(cstype, csname, s.ToString());
子页面一定记得在head中加入 <base target="_self" />