c# - DataGridView will not update unless the application is restarted -

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working in visual studio 2012 c#; , i'm trying implement datagridview. using part of program add records access database, datagridview uses populate information.

i used integrated setup, takes away lot of work far making connection. works fine, datagridview won't show recent changes database unless close application , restart it. once app restarted, works fine , list populates correctly. i've tried refreshing database changing data source null actual source, , neither have worked far.

ideas?

can provide code needed.

edit: code requested:

    public void frmviewbook_load(object sender, eventargs e)      {         datagridview1.datasource = null;         datagridview1.datasource = this.accdb.book;          this.booktableadapter.fill(this.accdb.book);      }

if doing updating manually , not using built-in capabilities of gridview need call databind().


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