Richtextbox Databinding issue on typing

问题

After binding object to Richtextbox using bindingsource, if i type anything inside the textbox cursor will move to beginning. Can someone please help me.

I am binding as below

this.txtDescription.DataBindings.Add("Text", bindingWard, "Description", 
                         false, DataSourceUpdateMode.OnPropertyChanged);

回答1:

Try changing the DataSourceUpdateMode to OnValidation:

this.txtDescription.DataBindings.Add("Text", bindingWard, "Description", 
                     false, DataSourceUpdateMode.OnValidation);

If you want to keep the OnPropertyChanged setting, you can try changing the ControlUpdateMode, which is sort of a way to create a one-way binding:

Binding b = new Binding("Text", test, "Description", 
                        false, DataSourceUpdateMode.OnPropertyChanged);
b.ControlUpdateMode = ControlUpdateMode.Never;
this.txtDescription.DataBindings.Add(b);

回答2:

Setting formattingEnabled=true solved the problem for me.

回答3:

try richTextBox1.ScrollToEnd(); after binding

来源：https://stackoverflow.com/questions/20243839/richtextbox-databinding-issue-on-typing