Relation between .cs file and .aspx

Posted by SurajRane under ASP.NET on 6/15/2010 | Views : 14607 | Status : [Member] | Replies : 8

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Hi,

I know that,

.aspx file inherits from its code behind file. but how we are able to access controls which are defined in markup (.aspx file) in .cs file ?

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Posted by: Vuyiswamb on: 6/15/2010 [Member] [MVP] [Administrator] NotApplicable

0	Very good Question Even the Page code behind inherit the cs file like this : System.Web.UI.Page Thank you for posting at Dotnetfunda [Administrator] SurajRane, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Muhilan on: 6/16/2010 [Member] Starter

0	in markup (.aspx file) controls should be in runat='server' then only you can access the particular control. ex.. <input id="textbox" name="textbox1" /> the above html control you cant access in .cs file but you can access in javascript function. <input id="textbox" name="textbox1" runat="server" /> you can access in .cs file and javascript also. SurajRane, if this helps please login to Mark As Answer. \| Alert Moderator

in markup (.aspx file) controls should be in runat='server' then only you can access the particular control.

ex..

<input id="textbox" name="textbox1" />

the above html control you cant access in .cs file but you can access in javascript function.

<input id="textbox" name="textbox1" runat="server" />

you can access in .cs file and javascript also.

SurajRane, if this helps please login to Mark As Answer. | Alert Moderator

Posted by: SurajRane on: 6/16/2010 [Member] Starter

0	I got the answer. Actually when we add control with runat="server" it is added in designer.cs file. This file contain class which is the same class which your page inherits. designer.cs and codebehind files will be merged at runtime (as both have partial class definition) into single one. Hence we are able to access controls added in aspx markup with rinat="server" in codebehind. Thanks for the reply for my forum guys.[I really need to brush up my knowledge again. really :) ] SurajRane, if this helps please login to Mark As Answer. \| Alert Moderator

I got the answer.

Actually when we add control with runat="server" it is added in

designer.cs file. This file contain class which is the same class which your page inherits.

designer.cs and codebehind files will be merged at runtime (as both have partial class definition) into single one.

Hence we are able to access controls added in aspx markup with rinat="server" in codebehind.

Thanks for the reply for my forum guys.[I really need to brush up my knowledge again. really :) ]

SurajRane, if this helps please login to Mark As Answer. | Alert Moderator

Posted by: ANU_DGR8 on: 7/28/2010 [Member] Starter

0	@VUYISWAMB: I Dint get your reply Thanks and Regards, Hoosha Boosha SurajRane, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Vuyiswamb on: 7/28/2010 [Member] [MVP] [Administrator] NotApplicable

0	Good day ANU_DGR8 on which reply ? Thank you for posting at Dotnetfunda [Administrator] SurajRane, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: ANU_DGR8 on: 7/28/2010 [Member] Starter

0	Gud Day! The answer that you have given for this question Thanks and Regards, Hoosha Boosha SurajRane, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Vuyiswamb on: 7/28/2010 [Member] [MVP] [Administrator] NotApplicable

0	In order to Find controls in asp.net you need to use this Page.FindControl("ControlID"); Thank you for posting at Dotnetfunda [Administrator] SurajRane, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: ANU_DGR8 on: 7/28/2010 [Member] Starter

0	But the question asked is How are we able to access controls in (.aspx) in cs file? Thanks and Regards, Hoosha Boosha SurajRane, if this helps please login to Mark As Answer. \| Alert Moderator

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