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How to capture enter event in asp.net

Posted on 2011-09-07
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Last Modified: 2012-05-12
Hi

I want to capture the enter event in a multiline text box in asp.net 3.5 and want to store that data in SQL databasse,So that when i fetch that data in future it would be shown un the same format with proper spacing
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Question by:ASPNET_8
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Expert Comment

by:Easwaran Paramasivam
ID: 36494791
<asp:TextBox ID="User_IDTextbox" Rows="3" Columns="50" TextMode="MultiLine" onkeypress="checkEnter(event)" runat="server"></asp:TextBox>

and ur JS function will be

function checkEnter(event)
{
     if (!event) event = window.event;
     key = event.keyCode ? event.keyCode : event.which;    

     if (key == 13)  //13 is keycode for enter key
     {
       //do stuff here.
     }
}

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Author Comment

by:ASPNET_8
ID: 36494821
Can u pls explain me what does this code do??

This part

 if (!event) event = window.event;
     key = event.keyCode ? event.keyCode : event.which;  
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Author Comment

by:ASPNET_8
ID: 36494845
How would i store the data in this Multiline text box with proper sppacing and retrieve it from there in the same format.??
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LVL 16

Accepted Solution

by:
Easwaran Paramasivam earned 500 total points
ID: 36494846
window.event contains which key is pressed. In IE event.keyCode contains the value (While pressing enter the value will be 13). But in browsers such as firefox event.which will contain the value. This code to work with all browsers.
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LVL 17

Expert Comment

by:OriNetworks
ID: 36494976
That javascript listens for the enter key which is only part of the solution. Inside the javascript that easwaranp provided, put code that adds "\r\n" to the textbox. This will give the newline in place of the enter.

If you just wanted the newline to write in the textbox from the codebehind you could use Environment.NewLine
VB.NET
txtTest.Text = "First Line " & Environment.NewLine & "Second Line"

C#
txtTest.Text = "First Line " + Environment.NewLine + "Second Line";
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Author Closing Comment

by:ASPNET_8
ID: 36586084
good
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