Tool Bars and Menus

[kimmer7389]

I am new to windows applications and C# both so please don't be to hard on me.

I am designing a Windows application using C#.
The main form has a file menu and a tool bar.
I can open other forms from my file menu without any problems.

I want to open forms from my tool bar using the same method as I open forms from the file menu using the tag property.

I am using Visual Studio and my File Menu and my Tool Bar are already created.

This is one example of how I am opening a form from the file menu

private void newMenuItem_Click(object sender, System.EventArgs e)
{


// TODO - set AddEditProjection properties, probably a data row
if (AddEditProjection.ShowDialog()
== DialogResult.OK)
{

}
else
{

}
AddEditProjection.Hide();

I am trying to use this code on the ToolBarButton Click Event

private void toolBarButtonClick(object sender, System.Windows.Forms.ToolBarButtonClickEventArgs e)
{
ToolBarButton anyButton = e.Button;
MenuItem anyMenuItem = (MenuItem)
anyButton.Tag;
anyMenuItem.PerformClick();
}

After the InitializeComponent method I have this

public mainForm()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();

//
// TODO: Add any constructor code after InitializeComponent call
//
ToolBarButton openButton = new
ToolBarButton();
addButton.Tag = newMenuItem;

Any help with what I am doing wrong would be greatly appreciated. Using this code produces an error message. The application builds but when I click on the button I get the following error message:

An unhandled exception of type 'System.InvalidCastException' occurred in FHP Client.exe

Additional information: Specified cast is not valid.

 

[obislavu]

The code in toolBarButtonClick() is Okay.
I think you get that error because one ToolBarButton has no Tag proprty set and in this case is null.

toolBarButton2.Text = "Open";
toolBarButton2.Tag = menuItem2;
toolBarButton3.Text = "Save"; // missing Tag for button3
toolBarButton4.Tag = menuItem4;

To find out which one has no Tag set change the function like here:

protected void toolBar1_ButtonClick (	Object sender, ToolBarButtonClickEventArgs e)
{
	ToolBarButton anyButton = e.Button;
	MenuItem anyMenuItem = (MenuItem)anyButton.Tag;
	if (anyMenuItem!=null)
		anyMenuItem.PerformClick();
	else
	System.Windows.Forms.MessageBox.Show("ToolBarButton without tag: " + anyButton.Text);
}

-obislavu-