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C# HierarchicalDataBoundControlDesigner类代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C#中System.Web.UI.Design.WebControls.HierarchicalDataBoundControlDesigner的典型用法代码示例。如果您正苦于以下问题:C# HierarchicalDataBoundControlDesigner类的具体用法?C# HierarchicalDataBoundControlDesigner怎么用?C# HierarchicalDataBoundControlDesigner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。



HierarchicalDataBoundControlDesigner类属于System.Web.UI.Design.WebControls命名空间,在下文中一共展示了HierarchicalDataBoundControlDesigner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,您的评价将有助于我们的系统推荐出更棒的C#代码示例。

示例1: GetDesignTimeHtml

//引入命名空间
using System;
using System.IO;
using System.Web;
using System.Drawing;
using System.Web.UI.WebControls;
using System.Web.UI.Design.WebControls;
using System.Collections;
using System.ComponentModel;
using System.Security.Permissions;

namespace Examples.CS.WebControls.Design
{
    // The MyHierarchicalDataBoundControl is a copy of the 
    // HierarchicalDataBoundControl.
    [AspNetHostingPermission(SecurityAction.Demand, 
        Level = AspNetHostingPermissionLevel.Minimal)]
    [AspNetHostingPermission(SecurityAction.InheritanceDemand, 
        Level = AspNetHostingPermissionLevel.Minimal)]
    [Designer(typeof(Examples.CS.WebControls.Design.
        MyHierarchicalDataBoundControlDesigner))]
    public class MyHierarchicalDataBoundControl : 
        HierarchicalDataBoundControl
    {
    } // MyHierarchicalDataBoundControl

    // Override members of the ierarchicalDataBoundControlDesigner.
    [ReflectionPermission(SecurityAction.Demand, Flags=ReflectionPermissionFlag.MemberAccess)]
    public class MyHierarchicalDataBoundControlDesigner : 
        HierarchicalDataBoundControlDesigner
    {
        const string bracketClose = ">";
        const string spanOpen = "<SPAN";
        const string spanClose = "</SPAN>";

        // Return the markup for a placeholder, if the inner markup is empty.
        // For brevity, the code that is used to detect embedded white_space 
        // in the tags is not shown.
        public override string GetDesignTimeHtml()
        {
            // Get the design-time markup from the base method.
            string markup = base.GetDesignTimeHtml();

            // If the markup is null or empty, return the markup 
            // for the placeholder.
            if(string.IsNullOrEmpty(markup))
                return GetEmptyDesignTimeHtml();

            // Make the markup uniform case so that the IndexOf will work.
            string MARKUP = markup.ToUpper();
            int charX;

            // Look for a <span ...> tag.
            if ((charX = MARKUP.IndexOf(spanOpen)) >= 0)
            {
                // Find closing bracket of span open tag.
                if ((charX = MARKUP.IndexOf(bracketClose, 
                        charX+spanOpen.Length)) >= 0)
                {
                    // If the inner markup of <span ...></span> is empty, 
                    // return the markup for a placeholder.
                    if (string.Compare(MARKUP, charX + 1, spanClose, 0, 
                                        spanClose.Length) == 0)

                        return GetEmptyDesignTimeHtml();
                }
            }
            // Return the original markup, if the inner markup is not empty.
            return markup;
        }

        // Shadow the control properties with design-time properties.
        protected override void PreFilterProperties(IDictionary properties)
        {
            string namingContainer = "NamingContainer";

            // Call the base method first.
            base.PreFilterProperties(properties);

            // Make the NamingContainery visible in the Properties grid.
            PropertyDescriptor selectProp =
                (PropertyDescriptor)properties[namingContainer];
            properties[namingContainer] =
                TypeDescriptor.CreateProperty(selectProp.ComponentType,
                    selectProp, BrowsableAttribute.Yes);
        } // PreFilterProperties
    } // MyHierarchicalDataBoundControlDesigner
} // Examples.CS.WebControls.Design
开发者ID:.NET开发者,项目名称:System.Web.UI.Design.WebControls,代码行数:88,代码来源:HierarchicalDataBoundControlDesigner



注:本文中的System.Web.UI.Design.WebControls.HierarchicalDataBoundControlDesigner类示例整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。


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