RichEditControl.AutoCorrect Event
Fires when text is typed in the control.
Namespace: DevExpress.Xpf.RichEdit
Assembly: DevExpress.Xpf.RichEdit.v24.1.dll
NuGet Package: DevExpress.Wpf.RichEdit
#Declaration
public event AutoCorrectEventHandler AutoCorrect
#Event Data
The AutoCorrect event's data class is AutoCorrectEventArgs. The following properties provide information specific to this event:
Property | Description |
---|---|
Auto |
Gets or sets the Auto |
The event data class exposes the following methods:
Method | Description |
---|---|
Create |
Allows you to create a new Auto |
#Remarks
Handle the AutoCorrect event to implement complex replacements as you type.
The RichEditControl.AutoCorrect
event is handled to replace the typed $ symbol with a picture of a dollar, and substitute the text enclosed in percent symbols with custom content.
To accomplish this task, a document text obtained via the AutoCorrectEventArgs.AutoCorrectInfo property is amended by expanding its left boundary using the AutoCorrectInfo.DecrementStartPosition method, until a special symbol or a word separator symbol is found. If a resulting string meets certain conditions, such as whether it is a dollar sign or a %date% string, a replacement object is passed to the document via the AutoCorrectInfo.ReplaceWith property. A replacement object can be a string or an image.
private void richEditControl1_AutoCorrect(object sender, DevExpress.XtraRichEdit.AutoCorrectEventArgs e)
{
AutoCorrectInfo info = e.AutoCorrectInfo;
e.AutoCorrectInfo = null;
if (info.Text.Length <= 0)
return;
for (; ; ) {
if (!info.DecrementStartPosition())
return;
if (IsSeparator(info.Text[0]))
return;
if (info.Text[0] == '$') {
info.ReplaceWith = CreateImageFromResx("dollar_pic.png");
e.AutoCorrectInfo = info;
return;
}
if (info.Text[0] == '%') {
string replaceString = CalculateFunction(info.Text);
if (!String.IsNullOrEmpty(replaceString)) {
info.ReplaceWith = replaceString;
e.AutoCorrectInfo = info;
}
return;
}
}
}