如何让Label消失？ [英] How to make Label disappear?

问题描述

我有以下代码，我想根据某些条件使Label消失。例如，如果var结果为空，那么我将Label的可见性设置为false，隐藏。

以下是我的代码，

Hi, I have the following codes, I want to make the Label disappear as according to some condition. For example, if the var result is empty, then I will set the Label's visibility to false, hidden.
Below are my codes,

var result = txtBatch.Text;
if(result.Equals(""))
{
    txtBatch.Visible = false;
    lblBatch.Visible = false;
}
else
{
    txtBatch.Visible = true;
    lblBatch.VIsible = true;
}

但在我尝试验证代码后，它会提示我txtBatch未定义错误。

以上代码不是用C＃编写的，所以我不太清楚错误是什么，代码是用Loftware Label Design软件用脚本编写的。任何帮助，将不胜感激。紧急。谢谢。

But after I try to verify the codes, it prompt me txtBatch not defined error.
The above codes is not written in C# so I dont quite know what the error is, the codes is written in script using Loftware Label Design software. Any help would be appreciated. Urgent. Thank you.

推荐答案

假设你有一个类似如下的TextBox：

Hi,

Lets say you have a TextBox like the following:

<asp:textbox id="txtBatch" runat="Server" text="1234"></asp:textbox>

在javascript中执行以下操作以获取价值：

In javascript do the following to get value:

var result = document.getElementById('<%=txtBatch.ClientID%>').value;

由于TextBox是服务器控件，所以在运行时这个控件有不同客户ID

As TextBox is server control, so on runtime this control have different client id

'<%=txtBatch.ClientID%>'

将在运行时返回控件clientid

然后你可以写

will return control clientid on runtime
Then you can write

if(result.Equals(""))

希望这会有所帮助!! :)



问候，

Praneet

Hope this helps !! :)

Regards,
Praneet

从我的研究中，我出来了建议。以下是我的代码/脚本：

From my research, I have come out with a suggestion. Below are my codes/scripts:

if(label.fields.field.(@name == 'SerNumber2')[e-mail]){
label.fields.field.(@name == 'SerNumber2').@printingField = "false"
}

else
{
label.fields.field.(@name == 'SerNumber2').@printingField = "true"
}

由于我在Loftware Label Design软件中编写代码，因此语法如上所示。 @name和@printingfield不是提示用户输入某些值的参数，但它们分别表现为数据类型和可见性。希望能帮助到你。谢谢。

Due to I am writing the codes in Loftware Label Design software, the syntax would be looked as the above. @name and @printingfield are not params that will prompt users to enter some value but they act like data type and visibility respectively. Hope it helps. Thank you.

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