winforms - C# Databound Windows Forms control does not retain value unless you leave the field -

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i saw answer in databound windows forms control not recognize change until losing focus.

but doesn't answer question me. have exact same situation. on toolstrip_click, go through of controls , force "writevalue()", still reverts previous value before save. can suggest how can fix this? did implement incorrectly?

(see code current (non-working) solution.)

private void menustrip1_itemclicked(object sender, toolstripitemclickedeventargs e) {     // make sure items have updated databindings.     foreach (control c in this.controls)     {         foreach (binding b in c.databindings)         {             // help: doesn't seem working.             b.writevalue();         }     } }

the code simpler, considerable hack. i'd happy know if there more "proper" fix this.

private void menustrip1_itemclicked(object sender, toolstripitemclickedeventargs e) {     // make sure text fields have updated forcing     // lose focus except lonely little label.     label44.focus(); }

the problem databound controls set update on validation.

you need set datasourceupdatemode of each of databound controls datasourceupdatemode.onpropertychanged. example, databound textbox:

this.textbox1.databindings.add(new system.windows.forms.binding("text",      this.somebindingsource, "someproperty", true,      system.windows.forms.datasourceupdatemode.onpropertychanged));

you can set datasource update mode in designer :

selecting control , going property window -> (databindings) -> (advanced)

-> set [data source update mode] in dropdownlist onpropertychanged.

cheers


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