We are working on ASP.NET Web Application, We are creating Dynamic Web Pages that dynamically load Controls according to database values. We are getting a postback issue for dynamic Controls values after the Control Event fires. For Example: While filling the form, if the first TextBox Leaves then it fires the TextChanged Event, and in-between the event fires if anything writes in the next TextBox, Then it will get clear/undo after the event completed. 2) While Filling the form, if Dropdownlist depends on any other control for their values.After the Dropdownlist will load values and make a selection, if any other Control event occurs after that, will result into clear the selection of that dropdownlist.

asp.net autopostback issue while dynamic elements loading.

Vikram Nimkar 6

We are working on ASP.NET Web Application, We are creating Dynamic Web Pages that dynamically load Controls according to database values. We are getting a postback issue for dynamic Controls values after the Control Event fires.
For Example:

While filling the form, if the first TextBox Leaves then it fires the TextChanged Event, and in-between the event fires if anything writes in the next TextBox, Then it will get clear/undo after the event completed.

2) While Filling the form, if Dropdownlist depends on any other control for their values.After the Dropdownlist will load values and make a selection, if any other Control event occurs after that, will result into clear the selection of that dropdownlist.

XuDong Peng-MSFT 10,096 Reputation points Microsoft Vendor

2021-03-15T05:37:03.447+00:00

Hi @Vikram Nimkar ,
when dynamically adding controls to an ASP.NET page in runtime the object references are lost at postback because they have no handle in the codebehind. So you have to save their values on postback and re-insert the values into the control.
Maybe you can try ViewState mentioned in this article: Retaining State for Dynamically Created Controls in ASP.NET applications