Window.Icon Property http://msdn.microsoft.com/en-us/library/system.windows.window.icon.aspx[^] Imaging Overview http://msdn.microsoft.com/en-us/library/ms748873.aspx[^] Just read this articles, i hope this information will be helpful.

XAML

<TabControl Name="mainTabControl" >
<TabItem MouseUp="TabItem_MouseUp" >
</TabItem>
</TabControl>

CODE

private void TabItem_MouseUp(object sender, MouseButtonEventArgs e)
{
if (e.MiddleButton == MouseButtonState.Released)
mainTabControl.SelectedItem = ((TabItem)sender);
}

Try this: this.Validate(); this.customersBindingSource.EndEdit(); this.ordersBindingSource.EndEdit(); Test2DataSet.CustomersDataTable customerChanges = null; Test2DataSet.OrdersDataTable orderChanges = null; customerChanges = (Test2DataSet.CustomersDataTable)this.test2DataSet.Customers.GetChanges(); orderChanges = (Test2DataSet.OrdersDataTable)this.test2DataSet.Orders.GetChanges(); if (customerChanges != null) this.customersTableAdapter.Update(customerChanges); if (orderChanges != null) this.ordersTableAdapter.Update(orderChanges); // Error has been occured in this line this.tableAdapterManager.UpdateAll(this.test2DataSet);

If you use TableAdapterManager your project contain TableAdapters, so try to use them. Sorry for my English.

Two things: 1: SaveFileDialog save = new SaveFileDialog(); save.Filter = "JPeg Image|*.jpg|Bitmap Image|*.bmp|Gif Image|*.gif"; save.Title = "Save the File"; if(save.ShowDialog() == DialogResult.OK) Use this to prevent exception on Cancel click { string fName = save.FileName; if (save.FileName != "") { System.IO.Stream fileStream = (System.IO.FileStream)save.OpenFile(); switch (save.FilterIndex) { case 1: this.button7.Image.Save(fileStream, System.Drawing.Imaging.ImageFormat.Jpeg); break; case 2: this.button7.Image.Save(fileStream, System.Drawing.Imaging.ImageFormat.Gif); break; case 3: this.button7.Image.Save(fileStream, System.Drawing.Imaging.ImageFormat.Bmp); break; } fileStream.Close(); } } } 2: Set Buttons Image Property !!!

1: try to remove -> this.customersBindingSource.EndEdit(); <- from ordersBindingSource_AddingNew(). or 2: modify private void customersBindingNavigatorSaveItem_Click(object sender, EventArgs e) { this.Validate(); this.customersBindingSource.EndEdit(); this.ordersBindingSource.EndEdit(); DataTable changes = null; changes = your datatable here.GetChanges(); if (changes != null) { TableAdapter.Update(changes); } your datatable heree.AcceptChanges(); }

I think you should read this.[^]

I found this, may bee it's helps. Make sure you don't modify the access database anywhere in your code without going through the datatable, because if you do the data in the datatable will no longer be synchronized with the database.

My idea is to set Canvas.Focusable Property to True ;)

It is normal. See comments here.[^]

:( I have a native C DLL which contains the following function: int FOO( UINT A, UINT B, int X, int Y, void *(*get_Z)(int, int, void*), void* I, int G, int* &K, int* &L ) throw () ; What should I do to be able to use it in my C# program. The solution: this link[^] Thanks to Henry Minute Roman

modified on Tuesday, April 21, 2009 7:35 AM