当我从javascript分配文本框时，如何获得文本框的价值？ [英] How to get value of textbox when I am assigning it from javascript?

问题描述

我选中了一个复选框，当我选中其他文本框的值应该被分配给该文本框并被禁用时，但是当我取消选中它时，用户应输入自己的值。



一旦我检查并插入相同的值，它就会保存到该值，但下次更新文本框时我无法读取新值。



我的Javascript函数是这样的。

I have one checkbox when i check that checkbox the value of other text box should be assigned to that text box and it get disabled ,but when i unchecked it user should input his own value.

Once i check and insert the same values it get saved to that value, but next time when i update the text boxes i am not able to read new values.

My Javascript function is like this.

function SetValues(ObjId) {

           if (document.getElementById(ObjId).checked) {
                document.getElementById('<%= txtBillAddr1.ClientID %>').value =
                    document.getElementById('<%= txtadress.ClientID %>').value;
                document.getElementById('<%= txtBillAddr2.ClientID %>').value =
                    document.getElementById('<%= txtAddr2.ClientID %>').value;
                document.getElementById('<%= txtBillCity.ClientID %>').value =
                    document.getElementById('<%= txtCity.ClientID %>').value;
                document.getElementById('<%= txtBillState.ClientID %>').value =
                    document.getElementById('<%= txtState.ClientID %>').value;
                document.getElementById('<%= ddlBillCountry.ClientID %>').value =
                    document.getElementById('<%= ddlcountry.ClientID %>').value;
                document.getElementById('<%= txtBillZipCode.ClientID %>').value =
                    document.getElementById('<%= txtZIP.ClientID %>').value;
                document.getElementById('<%= txtBillContctperson.ClientID %>').value =
                    document.getElementById('<%= txtcontactperson.ClientID %>').value;
                document.getElementById('<%= txtBillPhNo.ClientID %>').value =
                    document.getElementById('<%= txtPhone.ClientID %>').value;
                document.getElementById('').setAttribute("readonly", "readonly");
                document.getElementById('').setAttribute("style", "background-color:#DCDCDC");
                document.getElementById('').setAttribute("readonly", "readonly");
                document.getElementById('').setAttribute("style", "background-color:#DCDCDC");
                document.getElementById('').setAttribute("readonly", "readonly");
                document.getElementById('').setAttribute("style", "background-color:#DCDCDC");
                document.getElementById('').setAttribute("readonly", "readonly");
                document.getElementById('').setAttribute("style", "background-color:#DCDCDC");
                document.getElementById('').setAttribute("readonly", "readonly");
                document.getElementById('').setAttribute("style", "background-color:#DCDCDC");
                document.getElementById('').setAttribute("readonly", "readonly");
                document.getElementById('').setAttribute("style", "background-color:#DCDCDC");
                document.getElementById('').setAttribute("readonly", "readonly");
                document.getElementById('').setAttribute("style", "background-color:#DCDCDC");
                document.getElementById('').setAttribute("readonly", "readonly");
                document.getElementById('').setAttribute("style", "background-color:#DCDCDC");
            }
            else {
               
                document.getElementById('').removeAttribute("readonly");
                document.getElementById('').setAttribute("style", "background-color:#FFFFFF");
                document.getElementById('').removeAttribute("readonly");
                document.getElementById('').setAttribute("style", "background-color:#FFFFFF");
                document.getElementById('').removeAttribute("readonly");
                document.getElementById('').setAttribute("style", "background-color:#FFFFFF");
                document.getElementById('').removeAttribute("readonly");
                document.getElementById('').setAttribute("style", "background-color:#FFFFFF");
                document.getElementById('').removeAttribute("readonly");
                document.getElementById('').setAttribute("style", "background-color:#FFFFFF");
                document.getElementById('').removeAttribute("readonly");
                document.getElementById('').setAttribute("style", "background-color:#FFFFFF");
                document.getElementById('').removeAttribute("readonly");
                document.getElementById('').setAttribute("style", "background-color:#FFFFFF");
                document.getElementById('').removeAttribute("readonly");
                document.getElementById('').setAttribute("style", "background-color:#FFFFFF");

            }
        }

我的尝试：



我为我的文本框存在的那个块添加了更新面板。

仍然没有按要求工作。

What I have tried:

I added update panel for that block where my text boxes exists.
Still not working as required.

推荐答案

您可以尝试添加和删除下面的属性，让我知道这是否可以解决您的问题？



设置只读属性 -

document.getElementById（''）。attr（readonly，true）;



删除它 -

document.getElementById（''）。attr（readonly，false）;

Can you try adding and removing attribute like below instead and let me know if this resolves your problem?

To set readonly attribute -
document.getElementById('').attr("readonly", true);

To remove it -
document.getElementById('').attr("readonly", false);

这篇关于当我从javascript分配文本框时，如何获得文本框的价值？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！