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ASP.NET Web Forms

All server controls must appear in the <form> tag, <form> tag must contain the runat = "server" attribute.

ASP.NET Web Forms

All server controls must appear in the <form> tag, <form> tag must contain the runat = "server" attribute. runat = "server" attribute indicates that the form must be processed on the server. It also shows that the controls contained within it can be accessed by the server script:

<form runat="server">

/en.HTML + server controls

</form>

Note: This form is always submitted to the page itself.If you specify an action attribute, it will be ignored. If you omit the metion property, it will default method = "post". Also, if you do not specify the name and id attributes, they are automatically assigned by ASP.NET.

Note: An x page can only contain one <form runat = "server"> control!

If you are in a contained with no name, method, action, or id attribute of the form x page, choose to view the source code, you'll see ASP.NET add these attributes to the form, as shown below:

<form name="_ctl0" method="post" action="pagex" id="_ctl0">

/en.some code

</form>

Submit form

Form is usually submitted by clicking a button. Format ASP.NET Button server control is as follows:

<asp:Button id="id" text="label" OnClick="sub" runat="server" />

id attribute for the button defines a unique name, text attributes assigned a label for the button. onClick event handler specifies to execute a named subroutine.

In the following example, we declare a Button control in an x file. Click the button to run the subroutine change the text on the button:

Examples


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