LoadControl/用户控件(ascx)的上限 [英] Upper limit to LoadControl / user controls (ascx)

问题描述

我正在尝试查找一些信息，以提出有关使用用户控件的最佳做法.想象一下，您有一个带有TemplateField的GridControl，后者又加载了一个控件.

I''m trying to find some information suggesting best practices regarding the use of usercontrols. Imagine you have a GridControl with a TemplateField which in turn loads a control.

public class GridColumnTemplateCommand : ITemplate
{
    #region ITemplate Members
    public void InstantiateIn(Control container)
    {
        if (HttpContext.Current.CurrentHandler is Page)
        {
            Page page = (Page)HttpContext.Current.CurrentHandler;
            Control cActionCell = page.LoadControl(@"~\Shared\Controls\ControlShoppingListTableCellAction.ascx");
            container.Controls.Add(cActionCell);
        }
    }
    #endregion
}

这将意味着对每个单元都进行LoadControl.如果此网格绑定到足够大的数据集，我会担心性能.我的直觉说转换为服务器控件，但我找不到支持该控件的证据.

This would mean that LoadControl occurs for every cell. If this grid was bound to a sufficiently large dataset I am concerned about performance. My gut says convert to a server control, but I can''t find evidence to support this. Can anyone poine me to any information confirming my gut instinct?

推荐答案

您不会为此找到最佳实践，因为它涉及太多变量.在不同的硬件和连接方案下，性能可能会有所不同.即使使用服务器控制数据量，也可能是视图状态，仍然可能是性能问题.最好的方法是检查设计并在可能的情况下进行简化，以其他方式显示数据，或者根据需要动态加载一些数据.

You are not going to find a best practice for this as it involves too many variables. Performance can be different with different hardware and connection scenarios. Even it you used a server control the amount of data, and perhaps viewstate, may still be a problem for performance. The best approach is to review the design and simplify if possible, present the data in a different manner, or maybe load some data dynamically as necessary.

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