本文整理汇总了C#中System.Web.UI.Design.WebControls.MenuDesigner类的典型用法代码示例。如果您正苦于以下问题：C# MenuDesigner类的具体用法？C# MenuDesigner怎么用？C# MenuDesigner使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
MenuDesigner类属于System.Web.UI.Design.WebControls命名空间，在下文中一共展示了MenuDesigner类的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: GetErrorDesignTimeHtml
//引入命名空间
using System;
using System.Web;
using System.Web.UI.WebControls;
using System.Web.UI.Design.WebControls;
using System.ComponentModel;
using System.Security.Permissions;
using System.Drawing;
namespace Examples.CS.WebControls.Design
{
// The MyMenu is a copy of the Menu.
[AspNetHostingPermission(SecurityAction.Demand,
Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission(SecurityAction.InheritanceDemand,
Level = AspNetHostingPermissionLevel.Minimal)]
[Designer(typeof(Examples.CS.WebControls.Design.MyMenuDesigner))]
public class MyMenu : Menu
{
} // MyMenu
// Override members of the MenuDesigner.
public class MyMenuDesigner : MenuDesigner
{
// Generate the design-time markup for the control when an error occurs.
protected override string GetErrorDesignTimeHtml(Exception ex)
{
// Write the error message text in red, bold.
string errorRendering =
"<span style=\"font-weight:bold; color:Red; \">" +
ex.Message + "</span>";
return CreatePlaceHolderDesignTimeHtml(errorRendering);
} // GetErrorDesignTimeHtml
// Generate the design-time markup for the control
// when the template is empty.
protected override string GetEmptyDesignTimeHtml()
{
string noElements = "Contains no menu items.";
return CreatePlaceHolderDesignTimeHtml(noElements);
} // GetEmptyDesignTimeHtml
// Generate the design-time markup.
public override string GetDesignTimeHtml()
{
// Make the control more visible in the designer. If the border
// style is None or NotSet, change the border to an orange dotted line.
MyMenu myMenuCtl = (MyMenu)ViewControl;
string markup = null;
// Check if the border style should be changed.
if (myMenuCtl.BorderStyle == BorderStyle.NotSet ||
myMenuCtl.BorderStyle == BorderStyle.None)
{
BorderStyle oldBorderStyle = myMenuCtl.BorderStyle;
Color oldBorderColor = myMenuCtl.BorderColor;
// Set the design-time properties and catch any exceptions.
try
{
myMenuCtl.BorderStyle = BorderStyle.Dotted;
myMenuCtl.BorderColor = Color.FromArgb(0xFF7F00);
// Call the base method to generate the markup.
markup = base.GetDesignTimeHtml();
}
catch (Exception ex)
{
markup = GetErrorDesignTimeHtml(ex);
}
finally
{
// Restore the properties to their original settings.
myMenuCtl.BorderStyle = oldBorderStyle;
myMenuCtl.BorderColor = oldBorderColor;
}
}
else
{
// Call the base method to generate the markup.
markup = base.GetDesignTimeHtml();
}
return markup;
} // GetDesignTimeHtml
public override void Initialize(IComponent component)
{
// Ensure that only a MyMenu can be created in this designer.
if (!(component is MyMenu))
throw new ArgumentException(
"The component is not a MyMenu control.");
base.Initialize(component);
} // Initialize
} // MyMenuDesigner
} // Examples.CS.WebControls.Design