当前位置: 首页>>代码示例>>C#>>正文


C# ListControlDesigner类代码示例

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


ListControlDesigner类属于System.Web.UI.Design.WebControls命名空间,在下文中一共展示了ListControlDesigner类的2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: GetDesignTimeHtml

//引入命名空间
using System;
using System.ComponentModel;
using System.Drawing;
using System.Diagnostics;
using System.Web.UI.WebControls;
using System.Web.UI.Design.WebControls;

namespace Examples.CS.WebControls.Design
{
    // Create the SimpleRadioButtonListDesigner, which provides
    // design-time support for a custom list class.
    public class SimpleRadioButtonListDesigner : ListControlDesigner
    {
        SimpleRadioButtonList simpleRadioButtonList;
        bool changedDataSource;

        // Create the markup to display the control on the design surface. 
        public override string GetDesignTimeHtml()
        {
            string designTimeMarkup = null;

            // Create variables to access the control
            // item collection and back color.
            ListItemCollection items = simpleRadioButtonList.Items;
            Color oldBackColor = simpleRadioButtonList.BackColor;

            // Check the property values and render the markup
            // on the design surface accordingly.
            try
            {
                if (oldBackColor == Color.Empty)
                    simpleRadioButtonList.BackColor = Color.Gainsboro;

                if (changedDataSource)
                    items.Add("Updated to a new data source: " + 
                        DataSource + ".");

                // Call the base method to generate the markup.
                designTimeMarkup = base.GetDesignTimeHtml();
            }
            catch (Exception ex)
            {
                // Catch any exceptions that occur.
                designTimeMarkup = GetErrorDesignTimeHtml(ex);
            }
            finally
            {
                // Set the properties back to their original state.
                simpleRadioButtonList.BackColor = oldBackColor;
                items.Clear();
            }

            return designTimeMarkup;
        } // GetDesignTimeHtml

        public override void Initialize(IComponent component)
        {
            // Ensure that only a SimpleRadioButtonList can be 
            // created in this designer.
            Debug.Assert( 
                component is SimpleRadioButtonList, 
                "An invalid SimpleRadioButtonList control was initialized.");

            simpleRadioButtonList = (SimpleRadioButtonList)component;
            base.Initialize(component);
        } // Initialize

        // If the data source changes, set a boolean variable.
        public override void OnDataSourceChanged()
        {
            changedDataSource = true;
        } // OnDataSourceChanged
    } // SimpleRadioButtonListDesigner
} // 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:75,代码来源:ListControlDesigner

示例2:

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

namespace Examples.CS.WebControls.Design
{
    // The SimpleRadioButtonList is a copy of the RadioButtonList.
    // It uses the SimpleRadioButtonListDesigner for design-time support.
    [AspNetHostingPermission(SecurityAction.Demand, 
        Level = AspNetHostingPermissionLevel.Minimal)]
    [AspNetHostingPermission(SecurityAction.InheritanceDemand, 
        Level = AspNetHostingPermissionLevel.Minimal)]
    [Designer(typeof(Examples.CS.WebControls.Design.
       SimpleRadioButtonListDesigner))]
    [DataBindingHandler(typeof(Examples.CS.WebControls.Design.
        SimpleRadioButtonListDataBindingHandler))]
    public class SimpleRadioButtonList : RadioButtonList
    {
    } // SimpleRadioButtonList
} // 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:23,代码来源:ListControlDesigner


注:本文中的System.Web.UI.Design.WebControls.ListControlDesigner类示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,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。