Draws a text box control with the current visual style of the operating system.
绘制具有操作系统的当前视觉样式的文本框控件。
You can use this property to determine if the user has modified the contents of the text box control.
可以使用此属性确定用户是否修改了文本框控件的内容。
Draws a text box control in the specified state and bounds, and with the specified text and text bounds.
绘制具有指定的状态和边界以及指定的文本和文本边界的文本框控件。
Draws a text box control in the specified state and bounds, and with the specified text and text formatting.
在指定的状态和范围中，使用指定的文字和文字格式绘制文字方块控制项。
Draws a text box control in the specified state and bounds, and with the specified text, text bounds, and text formatting.
绘制具有指定的状态和边界以及指定的文本、文本边界和文本格式的文本框控件。
For example, you can enter text into a text box control and use the expression to search for that text in columns that are returned from a data source control.
例如，可以向文本框控件中输入文本，并使用此表达式搜索从数据源控件返回的列中的该文本。
This property can be used by validation and data-saving methods to determine if changes were made in a text box control so the changed contents can be validated or saved.
此属性可由验证和数据保存方法使用，以确定文本框控件是否被更改了，以便验证或保存所更改的内容。
This property can be used by validation and data-saving methods to determine if changes were made in a text box control so the changed contents can be validated or saved.
此属性可由验证和数据保存方法使用，以确定文本框控件是否被更改了，以便验证或保存所更改的内容。
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