Changing Control ID with Prefix 'ct100' in asp.net

Question

While checking my page control id is like - ContentPlaceHolder1_lnkDistributors.

But, After hosted my site in live server, Prefix is adding to above ID.

like: ctl00_ContentPlaceHolder1_lnkDistributors.

<asp:LinkButton ID="lnkDistributors" runat="server" Text="Distributors">
</asp:LinkButton>

Please help me. Thanks in Adv.

Answer 1

Static ClientIDMode is intended to control ID in HTML; but you have to use it carefully: it doesn't guarantee, instead, uniqueness of control ID in Page.

<asp:LinkButton ID="lnkDistributors" ClientIDMode="Static"  
 runat="server" Text="Distributors">  </asp:LinkButton>

If your control has its ClientIDMode set to AutoID, the control's ID will have a prefix to make it unique. (e.g. A control with an ID of "sam" will become "ct100_sam"). If your control has its ClientIDMode set to Static, the ID will not be changed and stay as to what the developer has set it to.

---

MSDN

ASP.NET provides multiple algorithms for how to generate the ClientID property value. You select which algorithm to use for a control by setting its ClientIDMode property. The algorithms are identified by the ClientIDMode enumeration values that are listed in the following list.

AutoID

The ClientID value is generated by concatenating the ID values of each parent naming container with the ID value of the control. In data-binding scenarios where multiple instances of a control are rendered, an incrementing value is inserted in front of the control's ID value. Each segment is separated by an underscore character (_). This algorithm was used in versions of ASP.NET earlier than ASP.NET 4.

Static

The ClientID value is set to the value of the ID property. If the control is a naming container, the control is used as the top of the hierarchy of naming containers for any controls that it contains.

Predictable

This algorithm is used for controls that are in data-bound controls. The ClientID value is generated by concatenating the ClientID value of the parent naming container with the ID value of the control. If the control is a data-bound control that generates multiple rows, the value of the data field specified in the ClientIDRowSuffix property is added at the end. For the GridView control, multiple data fields can be specified. If the ClientIDRowSuffix property is blank, a sequential number is added at the end instead of a data-field value. This number begins at zero and is incremented by 1 for each row. Each segment is separated by an underscore character (_).

Inherit

The control inherits the ClientIDMode setting of its NamingContainer control. The default value of ClientIDMode for a page is Predictable. The default value of ClientIDMode for a control is Inherit. Because the default for controls is Inherit, the default generation mode is Predictable. (However, if you use Visual Studio to convert a Web project to ASP.NET 4 from an earlier version, Visual Studio automatically sets the site default to AutoID in the Web.config file.)