It is important to note that the PreRender event occurs for each control on the page.
需要注意的是，PreRender事件作用于页面上的所有控件。
You can use this dialog to see how to use find to locate the buttons in the dialog and to get a TestObject for each control.
您可以使用该对话框来观察如何使用find方法在对话框中定位按钮，以及为每个控件获得一个TestObject。
This could be as simple as asking a developer for the properties and methods to use for each control, or it could be a bit more involved.
这就像询问开发人员使用每个控件的属性和方法一样简单，或者会涉及更多一点的内容。
Detailed how-to and reference documentation is available for each control separately.
每个控件都分别有详细的“如何”说明以及参考文档。
If you add the controls at design time, you must set positioning options for each control.
如果您在设计阶段加入控制项，则必须为每个控制项设定位置选项。
Time dependent ordinary differential equations are obtained from the mass and energy balances for each control volume.
针对每个控制容积建立了质量和能量平衡的微分方程。
The characteristic relationship is applied to solve the governing equations of mass, momentum and energy for each control volume.
采用特征线关系数值求解质量、动量和能量方程。
Second: via experimental data we get the second-order system model for each control object by using least square curve simulation.
通过现场实验数据，并利用最小二乘曲线拟合算法建立被控对象各通道之间的二阶系统模型。
For example, when an application uses function keys, you might want to process the keystrokes at the form level rather than writing code for each control that might receive keystroke events.
例如，当应用程序使用功能键时，可能希望在窗体级别处理这些击键，而不是为可能接收击键事件的每个控件编写代码。
For example, when an application uses function keys, you might want to process the keystrokes at the form level rather than writing code for each control that might receive keystroke events.
例如，当应用程序使用功能键时，可能希望在窗体级别处理这些击键，而不是为可能接收击键事件的每个控件编写代码。
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