Two way data binding for controls

Question

Hi, I have a textbox and a listbox (on separate forms), I've set the datasource of the listbox to be a class that contain a bindinglist which is populated by the textbox, making it so I can type in the textbox and populate the listbox. What I'd like to also do is make a binding in the other direction at the same time, I want to click on an item in the listbox and have that text be shown in the textbox, thereby having a two way bind between the controls. Could someone tell me how that is done please? Thanks

Ashutosh Gupta · Answer

this can be achived eaisly, make sure the selectedItem of lisbox is a binded with textbox. e.g. if you have property like public string MyText { get ;set;} this property should be binded with listbox SelectedItem = "{binding MyText, mode = twoway}" and

Laxmidhar Sahoo · Answer

hi why datasource added with textbox not in listview

Calvin Cutts · Answer

Do you mean like this: lstbHistory.SelectedItem = "{binding TextHistory.SelectedHistoryText, mode=twoway}"; and this txtInput.Text = "{binding TextHistory.SelectedHistoryText}"; lstbHistory is the listbox, txtInput is the textbox and TextHistory.SelectedHistoryText is the variable that holds the string, it's in a static class. This is a windows form app.

Calvin Cutts · Answer

I tried to create a binding source object (bsource), I set its datasource to the correct variable but I don't know what third parameter to use here: txtInput.DataBindings.Add("Text", bsource); txtInput is the textbox.

Two way data binding for controls

Answers (4)