Access html control generated by stringbulder

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I have added html control using string bulder and pass to div tag like below

C#

StringBuilder sbTest = new StringBuilder(string.Empty);

sbTest.Append("<input type='text'  runat="server" name='txtName' id='txtId' />");

dv.InnerHtml = sbTest.ToString();

Now I want to access that textbox in code behind .cs file.How can I access that?

Posted 23-Sep-13 2:25am

PrachiMhatre

Updated 23-Sep-13 2:40am

Thanks7872

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Eduard Keilholz · Answer 1 · 2013-09-23T02:41:00

Solution 1

Why do you use the StringBuilder?? Why not just :

XML

dv.InnerHtml = "<input type="text" runat="server" name="txtName" id="txtId" />";

The StringBuilder makes no sense at all in your code.

Further more, if you just add a textbox to your page, why don't you just drag the textbox on our webform? If you want thetextbox to post to a code-behind, you may just want to always add the textbox to your page and hide it using css.

Eduard

Posted 23-Sep-13 2:41am

Eduard Keilholz

Comments

PrachiMhatre 23-Sep-13 8:50am

Actually I have to create html control dynamically. For that I have used Stringbuilder.

Eduard Keilholz 23-Sep-13 8:54am

A StringBuilder is only faster when adding 3 or more 'pieces' of string into one. You cannot add the runat="server" attribute to a control dynamically. I think the best way is to just add the control to your form and hide it with CSS, then show it once nessecary.

piyush_singh 23-Sep-13 9:07am

In asp.net if you would add a control dynamically then, you will not get its value on postback. Once a Page is PostBack, SaveStateComplete event is raised after values of all the controls will be saved in the ViewState, which will conveniently ignore your label as it was added after the Page was rendered. And hence on Page load, you will get a new label.

I would suggest, that if the no. of Labels are fixed, then simply change their visibility using css. It will be much simpler to implement.