__dopostback - C#

__dopostback is a method in C# that provides a way to perform a postback to the server, which can be useful in web development.

Syntax

The syntax for __dopostback is as follows:

__doPostBack(eventTarget, eventArgument);

Here, eventTarget is the ID of the control that caused the postback to occur, and eventArgument is a string value that contains any additional data you want to send to the server.

Example

Suppose we have a button with an ID of "btnSubmit", and we want to perform a postback to the server when the button is clicked. We could use the following code:

protected void btnSubmit_Click(object sender, EventArgs e)
{
   __doPostBack("btnSubmit", "");
}

This would cause a postback to occur, with the ID of the button passed as the eventTarget.

Conclusion

__dopostback is a useful method in C# that provides a way to perform a postback to the server. By passing the ID of the control that caused the postback, along with any additional data, you can trigger server-side code to run and update the page accordingly.