How to make Label disappear?

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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,

JavaScript

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

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.

Posted 26-Nov-14 15:50pm

Jamie888

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Praneet Nadkar · Answer 1 · 2014-11-26T16:54:00

Hi,

Lets say you have a TextBox like the following:

ASP.NET

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

In javascript do the following to get value:

JavaScript

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

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

JavaScript

'<%=txtBatch.ClientID%>'

will return control clientid on runtime
Then you can write

if(result.Equals(""))

Hope this helps !! :)

Regards,
Praneet

Jamie888 · Answer 2 · 2014-11-27T21:42:00

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

JavaScript

if(label.fields.field.(@name == 'SerNumber2').@data.IsNullOrEmpty){
label.fields.field.(@name == 'SerNumber2').@printingField = "false"
}

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

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.

How to make Label disappear?

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