为什么输入标签不能输入类型？

Question

I am trying to do:

<input type="submit" runat="server" ... />

Error:

The base class includes the field 'btnEdit', but its type (System.Web.UI.HtmlControls.HtmlInputImage) is not compatible with the type of control (System.Web.UI.HtmlControls.HtmlInputSubmit).

Submit is a valid type, what is wrong here?

Answer 1

You are doing something else wrong, post more code. Appears that you are casting btnEdit as System.Web.UI.HtmlControls.HtmlInputImage .

There is nothing wrong with doing this, it will post fine:

 <input type="submit" runat="server" name="bla" value="bla" />

Answer 2

The error message shows you already have a control/html element with id 'btnEdit' which is of type System.Web.UI.HtmlControls.HtmlInputImage.

Did you inherit your webpage class from some base class and it is possible that the base class has that control already defined.

Answer 3

使用常规的ASP.NET并启用提交行为：

<asp:Button ID="Button1" runat="server" Text="Foo" UseSubmitBehavior="true" />

Answer 4

Maybe the "btnEdit" was defined by the image button , and then change it to the submit .

So ,

1,You can change the System.Web.UI.HtmlControls.HtmlInputImage to the System.Web.UI.HtmlControls.HtmlInputSubmit at the design.cs file .

2,Just change the id name from btnEdit to anything...