Rich text box drop file

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Span characterset , forward , negate. The Span method syntax has these parts:. A string expression that specifies the set of characters to look for when extending the selection, based on the value of negate. A Boolean expression that determines which direction the insertion point moves, as described in Settings. A Boolean expression that determines whether the characters in characterset define the set of target characters or are excluded from the set of target characters, as described in Settings.

Default Selects text from the current insertion point or the beginning of the current selection forward, toward the end of the text. Selects text from the current insertion point or the beginning of the current selection backward, toward the start of the text.

The characters included in the selection are those which do not appear in the characterset argument. The selection stops at the first character found that appears in the characterset argument. Default The characters included in the selection are those which appear in the characterset argument.

The selection stops at the first character found that does not appear in the characterset argument. The Span method is primarily used to easily select a word or sentence in the RichTextBox control. If the Span method cannot find the specified characters based on the values of the arguments, then the current insertion point or selection remains unchanged.

The Span method does not return any data. To try this example, put a RichTextBox control on a form. Then run the example. Moves the insertion point up to, but not including, the first character that is a member of the specified character set in a RichTextBox control.

Upto c haracterset , forward, negate. The Upto method syntax has these parts:. A string expression that specifies the set of characters to look for when moving the insertion point, based on the value of negate.

Default Moves the insertion point forward, toward the end of the text. Moves the insertion point backward, toward the start of the text. The characters not specified in the characterset argument are used to move the insertion point. Default The characters specified in the characterset argument are used to move the insertion point.

Sends formatted text in a RichTextBox control to a device for printing. SelPrint hdc. The SelPrint method syntax has these parts:. The device context of the device you plan to use to print the contents of the control. If text is selected in the RichTextBox control, the SelPrint method sends only the selected text to the target device. If no text is selected, the entire contents of the RichTextBox are sent to the target device. Rather, it sends a copy of formatted text to a device which can print the text.

For example, you can send the text to the Printer object using code as follows:. Notice that the hDC property of the Printer object is used to specify the device context argument of the SelPrint method.

Note If you use the Printer object as the destination of the text from the RichTextBox control, you must first initialize the device context of the Printer object by printing something like a zero-length string.

The SelChange Event. Occurs when the current selection of text in the RichTextBox control has changed or the insertion point has moved. You can use the SelChange event to check the various properties that give information about the current selection such as SelBold so you can update buttons in a toolbar, for example.

Sample Application. The sample application for this article uses the RichTextBox control to implement a WordPad-like text editor see the screen shot below :. This article does not contain a "blow by blow" description of the code for the sample application, but much can be learned by downloading the sample application and working with it.

The sample application incorporates many of the features of the RichTextBox discussed earlier in this article, and also incorporates the use of menus and controls discussed in the topics preceding this one Toolbar, CommonDialog, StatusBar.

Also, many of the concepts and techniques used for the File and Edit menu commands in the previous topic on building the basic text editor have been incorporated here. Development of this sample application was not as straightforward as I would have hoped. Most of the trouble stemmed from the fact that the RichTextBox has built-in capabilities for basic text editing such as support of keyboard shortcuts like Ctrl-X and Ctrl-V for cutting and pasting , causing conflicts when attempting to implement keyboard events and menu Edit commands such as keyboard shortcuts not working at all, "double pasting", etc.

Related to cutting and pasting is the Clipboard object, which I could not get to always "do the right thing" when a mixture of text and graphics was involved. These issues were resolved by using a custom Clipboard class in lieu of the Clipboard object, and by using the API technique of subclassing to intercept some of the keyboard shortcuts. The sample application is a robust demo that shows you how to use many of the RichTextBox's features, as well as providing a "workout" with menus, the Toolbar, and the Common Dialog controls.

Features that are not present in the sample application are advanced paragraph formatting and tab-setting. If you were inclined to enhance this application, that would be a good place to start. In addition, you would have to come up with a way to display a ruler possible suggestions for the ruler include using a PictureBox in conjunction with labels or lines, or by finding a freeware custom control.

Download the project files for the sample application here. The RichTextBox Control The RichTextBox control allows the user to display, enter, and edit text while also providing more advanced formatting features than the conventional TextBox control.

General Description The RichTextBox control provides a number of properties you can use to apply formatting to any portion of text within the control. HideSelection Returns a Boolean value that determines whether selected text appears highlighted when the RTB loses focus.

MaxLength Returns or sets a value Long indicating whether there is a maximum number of characters a RichTextBox control can hold and, if so, specifies the maximum number of characters. RightMargin The RightMargin property is a Long value used to set the right most limit for text wrapping, centering, and indentation. ScrollBars Returns or sets a value indicating whether the RTB has horizontal or vertical scroll bars. SelAlignment Returns or sets a value that controls the alignment of the paragraphs in a RichTextBox control.

SelAlignment Then ' Code to run when selection is mixed. ElseIf RichTextBox1. SelBold Then ' Code to run when selection is mixed. End If SelBullet Returns or sets a value that determines if a paragraph in the RichTextBox control containing the current selection or insertion point has the bullet style.

SelBullet Then ' Code to run when selection is mixed. End If SelCharOffset Returns or sets a value that determines whether text in the RichTextBox control appears on the baseline normal , as a superscript above the baseline, or as a subscript below the baseline. SelCharOffset Then ' Code to run when selection is mixed. SelFontName Returns or sets the font used to display the currently selected text or the character s immediately following the insertion point in the RichTextBox control.

SelFontSize Returns or sets a value that specifies the size of the font used to display text in a RichTextBox control. SelIndent, SelRightIndent, SelHangingIndent Returns or sets the margin settings for the paragraph s in a RichTextBox control that either contain the current selection or are added at the current insertion point. Set the handledEventsToo parameter to true to have the specified handler be invoked for a routed event that has already been marked as handled by another element along the event route.

You can replace the built-in drag-and-drop functionality of TextBox , RichTextBox , and FlowDocument by handling the preview versions of the drag-and-drop events and marking the preview events as handled.

However, this will disable the built-in drag-and-drop functionality, and is not recommended. This example uses the AddHandler RoutedEvent, Delegate, Boolean method and sets the handledEventsToo parameter to true so that the events handlers will be invoked even though the RichTextBox marks these events as handled.

The code in the event handlers adds functionality to open a text file that is dropped on the RichTextBox. The file will be opened in the RichTextBox. When you release the mouse button, the selected text is dropped that is, the DragDrop event is raised and is inserted within the RichTextBox control.

Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Please rate your experience Yes No. Any additional feedback? To see what your rich text boxes will look like with actual text in them, click Sample Data on the View menu. This helps you get a sense of what the form will look like when users fill it out. Use margins to adjust the spacing around the outside of a rich text box. Use padding to adjust the spacing around the text inside the rich text box.

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