MSDN中的例子:
Pagelet2.aspx 文件:
<%@ Register TagPrefix="Acme" TagName="Message" Src="pagelet2.ascx" %><html> <script language="C#" runat="server"> void SubmitBtn_Click(Object sender, EventArgs E) {
MyMessage.Text = "Message text changed!";
MyMessage.Color = "red";
} </script><body style="font: 10pt verdana"> <h3>A Simple User Control w/ Properties</h3> <form runat="server"> <Acme:Message id="MyMessage" Text="This is a custom message!" Color="blue" runat="server"/> <p> <asp:button text="Change Properties" OnClick="SubmitBtn_Click" runat=server/> </form></body>
</html>Pagelet2.ascx 文件:
<script language="C#" runat="server"> public String Color = "blue";
public String Text = "This is a simple message user control!";</script><span id="Message" style="color:<%=Color%>"><%=Text%></span>编译错误:
编译错误
说明: 在编译向该请求提供服务所需资源的过程中出现错误。请检查下列特定错误详细信息并适当地修改源代码。 编译器错误信息: CS0117: “ASP.WebUserControl1_ascx”并不包含对“Text”的定义源错误: 行 8:
行 9: void SubmitBtn_Click(Object sender, EventArgs E) {
行 10: MyMessage.Text = "Message text changed!";
行 11: MyMessage.Color = "red";
行 12: }
源文件: http://localhost/Pagelet1/WebForm1.aspx 行: 10 请指点!谢谢!
Pagelet2.aspx 文件:
<%@ Register TagPrefix="Acme" TagName="Message" Src="pagelet2.ascx" %><html> <script language="C#" runat="server"> void SubmitBtn_Click(Object sender, EventArgs E) {
MyMessage.Text = "Message text changed!";
MyMessage.Color = "red";
} </script><body style="font: 10pt verdana"> <h3>A Simple User Control w/ Properties</h3> <form runat="server"> <Acme:Message id="MyMessage" Text="This is a custom message!" Color="blue" runat="server"/> <p> <asp:button text="Change Properties" OnClick="SubmitBtn_Click" runat=server/> </form></body>
</html>Pagelet2.ascx 文件:
<script language="C#" runat="server"> public String Color = "blue";
public String Text = "This is a simple message user control!";</script><span id="Message" style="color:<%=Color%>"><%=Text%></span>编译错误:
编译错误
说明: 在编译向该请求提供服务所需资源的过程中出现错误。请检查下列特定错误详细信息并适当地修改源代码。 编译器错误信息: CS0117: “ASP.WebUserControl1_ascx”并不包含对“Text”的定义源错误: 行 8:
行 9: void SubmitBtn_Click(Object sender, EventArgs E) {
行 10: MyMessage.Text = "Message text changed!";
行 11: MyMessage.Color = "red";
行 12: }
源文件: http://localhost/Pagelet1/WebForm1.aspx 行: 10 请指点!谢谢!
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private int m_minValue;
private int m_maxValue = 100;
private int m_currentNumber = 0;
public int MinValue
{
get
{
return m_minValue;
}
set
{
if(value >= this.MaxValue)
{
throw new Exception("MinValue must be less than MaxValue.");
}
else
{
m_minValue = value;
}
}
}public int MaxValue
{
get
{
return m_maxValue;
}
set
{
if(value <= this.MinValue)
{
throw new
Exception("MaxValue must be greater than MinValue.");
}
else
{
m_maxValue = value;
}
}
}public int CurrentNumber
{
get
{
return m_currentNumber;
}
}protected void Page_Load(Object sender, EventArgs e)
{
if(IsPostBack)
{
m_currentNumber =
Int16.Parse(ViewState["currentNumber"].ToString());
}
else
{
m_currentNumber = this.MinValue;
}
DisplayNumber();
}protected void DisplayNumber()
{
textNumber.Text = this.CurrentNumber.ToString();
ViewState["currentNumber"] = this.CurrentNumber.ToString();
}protected void buttonUp_Click(Object sender, EventArgs e)
{
if(m_currentNumber == this.MaxValue)
{
m_currentNumber = this.MinValue;
}
else
{
m_currentNumber += 1;
}
DisplayNumber();
}protected void buttonDown_Click(Object sender, EventArgs e)
{
if(m_currentNumber == this.MinValue)
{
m_currentNumber = this.MaxValue;
}
else
{
m_currentNumber -= 1;
}
DisplayNumber();
}
</script>
<asp:TextBox ID="textNumber" runat="server"
ReadOnly="True" Width="32px" Enabled="False" />
<asp:Button Font-Bold="True" ID="buttonUp" runat="server"
Text="^" OnClick="buttonUp_Click" />
<asp:Button Font-Bold="True" ID="buttonDown" runat="server"
Text="v" OnClick="buttonDown_Click" />
然后:
<uc:Spinner ID="Spinner1" runat="server" MinValue=0 MaxValue=10 />