bindingnavigator

问题 On my VS2015 Winforms app, I created a DataGridView along with a BindingNavigator . The following code successfully displays the data in the DataGridView and I can navigate the data rows using the BindingNavigator. But when I try to add/delete a row using builtin Add/Delete buttons on the BindingNavigator the database does not reflect those changes. The Code : public partial class Form2 : Form { public Form2() { InitializeComponent(); } SqlDataAdapter dadapter; DataSet dset; BindingSource bs;

问题 I have the bindingnavigator control with 5 items including a toolstripdownbutton. I programmatically add a toolstripcontrolhost that contains a panel to the toolstripdownbutton. When I open the dropdown first time, it shows in the location (0,0).During second and third times of dropdown opening the correct position. How do I fix this error? FormTest formTest = new FormTest(); formTest.TopLevel = false; tsddbFormControl.DropDownItems.Clear(); formTest.FormBorderStyle = System.Windows.Forms

问题 How do I get rid of this ugly line? Draw a default bindingnavigator on an empty Form and you will see the problem. RenderMode is ManagerRenderMode. I want this render mode so the mouse over colors is correct. However, If I switch to System as rendermode the ugly line disapears, but then mouse over color/effect gets ugly. I have been looking around for a solution for some time now, but nothing. Maybe someone here have seen this problem before? 回答1: It's not a BindingNavigator specific issue,

问题 Please have a look to the following code and tell me why it does not move to the next record? I load data programmatically and fill tables in dataset. I could do this by wizard but I want to do it with my own code; because using wizard sometimes does not help understanding the real code behind it. Private Sub frmSystemOptions_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Try dsOptions = New DataSet loadOptions() bsInstitute = New BindingSource(dsOptions,