取多个DropDownList的值的问题?

Question

各位好,小弟向大家请教个问题,是这样的,我的页面上有上百个DropDownList控件,名子不是DropDownList1,DropDownList2.......,而是由我自己定义的其它名称,怎样用一个for语句,把这上百个DropDownList的所选择项的值用一个字符串把它加起来?

Answer 1

客户端脚本.
DDLArray[]=document.GetElementByTag("### ")

Answer 2

脚本 var a=document.GetElementByTag("DropDownList");

Answer 3

public static Control GetPostBackControl(Page page)
...{
    Control control = null;    string ctrlname = page.Request.Params.Get("__EVENTTARGET");
    if (ctrlname != null && ctrlname != string.Empty)
    ...{
        control = page.FindControl(ctrlname);
    }
    else
    ...{
        foreach (string ctl in page.Request.Form)
        ...{
            Control ddl = page.FindControl(ctl);
            if (ddl is System.Web.UI.WebControls.DropDownList)
            ...{
                control = c;
                break;
            }
        }
    }
    return control;
}

Answer 4

        foreach (Control ctrl in this.Page.Controls)
        {
            foreach (Control ctl in ctrl.Controls)
            {
                if (ctl.GetType().Name == "DropDownList")
                {
                    DropDownList dr = new DropDownList();
                    dr = (DropDownList)this.FindControl(ctl.ID);
                    dr.Items.Add(new ListItem("0", "请选择3"));
                                    }
                
            }
        }修改下就可以

Answer 5

        foreach (Control myCl in this.Page.Controls)
        {
            if (myCl.GetType().ToString() == "System.Web.UI.WebControls.DropDownList")
            {
                //do something
            }
        }