CS1061: 'System.Web.UI.HtmlControls.HtmlSelect' does not contain a definition for 'SelectedItem' and no extension method 'SelectedItem' accepting a first argument of type 'System.Web.UI.HtmlControls.HtmlSelect' could be found (are you missing a using directive or an assembly reference?)...
好像是你的value没有定义属性和方法，修改如下：<%@ Page Language="C#" %> <html xmlns="http://www.w3.org/1999/xhtml"> <head id="Head1" runat="server"> <title>test2.aspx</title> </head> <body> <form id="Form1" method="post" runat="server"> <select id="select1" ...
A text field literal can be specified forname, but its content is ignored. If thetext poolcurrently loaded does not contain a selection text for the parameter, the output field displays the corresponding field label from ABAP Dictionary. When data is transported from the input field to the sele...
If it does not, it creates child controls. (Inherited from Control) EnsureDataBound() Verifies that the HtmlSelect control requires data binding and that a valid data source control is specified before calling the DataBind() method. EnsureID() Creates an identifier for controls that do ...
If the KEYLIST option is set to ON, and the panel definition does not contain a )PANEL statement, the positioning of the function keys depends on the CUA mode setting. If the KEYLIST option is set to ON, and the panel definition contains a )PANEL statement, the positioning of the funct...
You can use square brackets to enclose the name. If the name does not contain any spaces or special characters (such as punctuation marks), the square brackets are optional. If the name does contain spaces or special characters, you must use the brackets. ...
Forms.Button' does not contain a definition 'System.Xml.XmlException' occurred in System.Xml.dll Visual C#? 'Transaction failed. The server response was: 5.7.1 Relay access denied in asp.net' 'Windows' does not exist in the namespace 'System'... "_" underscore keyword in asynchronous ...
By default, the result ofUNIONdoes not contain any duplicate rows unless theALLclause is declared. MultipleUNIONoperators in the same SELECT statement are evaluated left to right, unless otherwise specified by parentheses. FOR UPDATE,FOR NO KEY UPDATE,FOR SHARE, andFOR KEY SHAREcannot be specified...
If you also specify agroup_by_clausein this statement, then this select list can contain only the following types of expressions: Constants Aggregate functions and the functionsUSER,UID, andSYSDATE Expressions identical to those in thegroup_by_clause ...
= != STARTS_WITH STARTS_WITH_IGNORE_CASE CONTAINS CONTAINS_IGNORE_CASE DOES_NOT_CONTAIN DOES_NOT_CONTAIN_IGNORE_CASE 包含列舉值之資料行的運算子: 複製 = != IN [] NOT_IN [] 包含字串陣列之資料行的運算子: 複製 CONTAINS_ALL CONTAINS_ANY CONTAINS_NONE ...