How to bind textboxes to data source using Visual Studio
Select the TextBox and from the properties window select (Advanced) from DataBindings
From the list of sources select ‘Add Data Source’
When prompted to Save the connection string accept it
From the list select the table you want and the columns
Assign the column to the particular text box
this.textBox1.DataBindings.Add(new System.Windows.Forms.Binding("Text", this.forumUsersBindingSource, "ForumUser", true));