📄 basewebcontroldynamic.aspx

📁 asp.net技术内幕的书配源码

💻 ASPX

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<%@ Import Namespace="System.Drawing" %>
<Script Runat="Server">

Sub dropBackColor_SelectedIndexChanged( s As Object, e As EventArgs )
  Dim strBackColor As Color

  strBackColor = Color.FromName( dropBackColor.SelectedItem.Text )
  txtTextBox.BackColor = strBackColor
End Sub

Sub dropFontSize_SelectedIndexChanged( s As Object, e As EventArgs )
  txtTextBox.Font.Size = FontUnit.Parse( dropFontSize.SelectedItem.Text )
End Sub

</Script>

<html>
<head><title>BaseWebControlDynamic.aspx</title></head>
<body>

<form Runat="Server">

<asp:TextBox
  ID="txtTextBox"
  TextMode="MultiLine"
  Text="Here is some text"
  Runat="Server" />

<p>
BackColor:
<asp:DropDownList
  ID="dropBackColor"
  AutoPostBack="True"
  OnSelectedIndexChanged="dropBackColor_SelectedIndexChanged"
  Runat="Server">
  <asp:ListItem Text="Red" />
  <asp:ListItem Text="Blue" />
  <asp:ListItem Text="Green" />
</asp:DropDownList>

<p>
Font Size:
<asp:DropDownList
  ID="dropFontSize"
  AutoPostBack="True"
  OnSelectedIndexChanged="dropFontSize_SelectedIndexChanged"
  Runat="Server">
  <asp:ListItem Text="12pt" />
  <asp:ListItem Text="14pt" />
  <asp:ListItem Text="24pt" />
</asp:DropDownList>

</form>
</body>
</html>

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