好像不行!:Type 'System.Windows.Forms.TextBox' is not defined Dim Te As System.Web.UI.WebControls.Text Te = New System.Web.UI.WebControls.Text我用的是VB语法,不知写的对不对?
不是,可是去了Te = New System.Web.UI.WebControls.Text以后报以下错误::: Object reference not set to an instance of an object. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.Source Error: The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, please follow one of the below steps, then request the URL:1. Add a "Debug=true" directive at the top of the file that generated the error. Example: <%@ Page Language="C#" Debug="true" %>or:2) Add the following section to the configuration file of your application:<configuration> <system.web> <compilation debug="true"/> </system.web> </configuration>Note that this second technique will cause all files within a given application to be compiled in debug mode. The first technique will cause only that particular file to be compiled in debug mode.Important: Running applications in debug mode does incur a memory/performance overhead. You should make sure that an application has debugging disabled before deploying into production scenario. Stack Trace: [NullReferenceException: Object reference not set to an instance of an object.] ASP.Test_aspx.__Render__control1(HtmlTextWriter __output, Control parameterContainer) +94 System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +27 System.Web.UI.Control.Render(HtmlTextWriter writer) +7 System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +243 System.Web.UI.Page.ProcessRequestMain() +1929 -------------------------------------------------------------------------------- Version Information: Microsoft .NET Framework Version:1.1.4322.573; ASP.NET Version:1.1.4322.573
Dim Te As System.Web.UI.WebControls.Text
Te = New System.Web.UI.WebControls.Text我用的是VB语法,不知写的对不对?
我这个TextBox中的值是通过数据绑定得到的,是循环的
不要
Object reference not set to an instance of an object.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.Source Error: The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, please follow one of the below steps, then request the URL:1. Add a "Debug=true" directive at the top of the file that generated the error. Example: <%@ Page Language="C#" Debug="true" %>or:2) Add the following section to the configuration file of your application:<configuration>
<system.web>
<compilation debug="true"/>
</system.web>
</configuration>Note that this second technique will cause all files within a given application to be compiled in debug mode. The first technique will cause only that particular file to be compiled in debug mode.Important: Running applications in debug mode does incur a memory/performance overhead. You should make sure that an application has debugging disabled before deploying into production scenario. Stack Trace:
[NullReferenceException: Object reference not set to an instance of an object.]
ASP.Test_aspx.__Render__control1(HtmlTextWriter __output, Control parameterContainer) +94
System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +27
System.Web.UI.Control.Render(HtmlTextWriter writer) +7
System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +243
System.Web.UI.Page.ProcessRequestMain() +1929
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Version Information: Microsoft .NET Framework Version:1.1.4322.573; ASP.NET Version:1.1.4322.573
不是Text是TextBox我手快打少了.
Te = New System.Web.UI.WebControls.TextBox