In a C# VSTO Ribbon, you can design and place buttons and you can program whatever you want each button to do i.e. an action that will occur on each individual button click event can be defined by the programmer.
I have some code I would like to perform every time a button was clicked -
regardless of which button was clicked. A simple example includes measuring the time that the button click event was received: I want this for all my buttons, so, I am looking for a general / abstract event handling all button clicks or something of the sort rather than each event one by one. Does this exist in VSTO or is there a clean implementation to it?
Here is a simple illustration of the problem in code.
I have 3 buttons: btn1, btn2 and btn3. And I have defined what I will do for each click as follows:
private void btn1_Click(object sender, RibbonControlEventArgs e)
{
//same code
//btn1 specific code
}
private void btn2_Click(object sender, RibbonControlEventArgs e)
{
//same code
//btn2 specific code
}
private void btn3_Click(object sender, RibbonControlEventArgs e)
{
//same code
//btn3 specific code
}
The problem is clear: there is part of the code that I want to do that is the same for each click. So is there a general click event where I can define the same code only just once?
Related
I have a C# Windows Forms App that contain a menu bar.
I want to display a Help Message when I press on the "HELP" menu button.
All that I can see when I press view code is this:
private void aboutToolStripMenuItem_Click(object sender, EventArgs e)
{
}
I think that I need to create inside the function a MessageBox or an event that will display the desired message.
Do you have any idea how should I do this, please?
Below should work for what your asking. If you are on your form you can double click the button you want to interact with, and Visual Studio should take you to the empty method.
private void helpToolStripMenuItem_Click(object sender, EventArgs e)
{
MessageBox.Show("This is supposed to be helpful");
}
I am following this walkthrough on MSDN: Creating a Custom Tab by Using the Ribbon Designer
Looking at steps 3 and 4:
In step 3 it adds an event handler to the ribbon_Load function, basically adding a click event to a button in the ribbon:
private void MyRibbon_Load(object sender, RibbonUIEventArgs e)
{
this.button1.Click += new RibbonControlEventHandler(this.button1_Click);
}
Then, in step 4 they add another event handler in the way that I am more used to, like so:
private void button1_Click(object sender, RibbonControlEventArgs e)
{
MergeReportInterface ui = new MergeReportInterface();
ui.ShowDialog();
}
I am not really understanding the purpose of this, because all it does is cause the event to fire twice. If I comment out the event handler that was added to the load function the event occurs once.
Could someone please explain to me what the point of this is? if there is any, or if there is some error on the MSDN site. What should be the proper way to handle a ribbon click event?
private void button1_Click(object sender, RibbonControlEventArgs e)
{
MergeReportInterface ui = new MergeReportInterface();
ui.ShowDialog();
}
This is not adding an event handler. This is the method that your event will call.
this.button1.Click += new RibbonControlEventHandler(this.button1_Click);
This is saying 'When button1 fires its Click event, call this.button1_Click'.
Your code only sets up one event handler, it should only fire once.
However, it's likely you created the button1_Click method by double clicking a button on your form designer. This, behind the scenes, adds an additional event handler. This is why you're getting the event fired twice.
So you have two options:
Go back into the IDE and remove the click handler via your form designer. Go to your code and manually write the method button1_Click.
OR
Remove this line: this.button1.Click += new RibbonControlEventHandler(this.button1_Click);, as VisualStudio is doing that for you automatically.
I am busy having a problem with allocating a new event to an existing button that was created in the designer.
Now here is the button that was created prior to runtime which is inside the modalpopupexteder5 -
<asp:Button runat="server" ID="btnClose" Text="Close" OnClick="btnClose_Click" />
Here is the codebehind -
protected void btnAddAccount_Click(object sender, EventArgs e)
{
btnClose.Click -= new EventHandler(btnClose_Click);
btnClose.Click += new EventHandler(btnCancel_Click);
ModalPopupExtender5.Show();
}
protected void btnCancel_Click(object sender, EventArgs e)
{
ModalPopupExtender11.Hide();
}
protected void btnClose_Click(object sender, EventArgs e)
{
ModalPopupExtender5.Hide();
}
So the button in the beginning has the event btnClose_Click hooked up to it. But I want to change it to the btnCancel_Click
But it wont execute the btnCancel_Click. It executes the original btnClose_Click
Any Ideas what could of caused this?
Does this relate to the page life cycle?
--EDIT--
I should let you know that the btnAddAccount_Click does get executed.
Basically I don't to create the same modalpopupextender, I want to use the existing one but depending on user selection will determine which eventhandler should be called and in this case the btnAccount_Click has selected the btnCancel_Click to be assigned to the button.
ASP.NET is not assigning the Click events anywhere for the server side buttons. Those buttons are rendered as plain submit buttons, and the internal code behind is checking the submitted value then based on that it finds the "clicked" button and calls the proper handler.
This means your current logic is leading to a dead end.
Instead of messing with the events, have btnClose_Click as the handler, and in there check the currently active/visible popup and hide it.
I am not quite sure what exactly you are asking, but you can add a Handles to your event and so control the events on your buttons.
Something like:
protected void btnCancel_Click(object sender, EventArgs e) Handles btnCancel.Click, btnClose.Click
{
//do stuff
}
I am having trouble getting my application to work correctly. I am trying to select a row in a datagridview with the mouse. I need to save the index of this row to allow me to navigate around the selected row.
I have been looking at DataGridView.CellMouseClick Event (Link) But I am unable to ensure that the event handler is associated with the CellMouseClick event.
My code for this so far is simple, Im just trying to see if its detecting mouse clicks:
public event DataGridViewCellMouseEventHandler CellMouseClick;
private void DataGridView1_CellMouseClick(Object sender, DataGridViewCellMouseEventArgs e)
{
MessageBox.Show("Mouse clicked in the datagridview!");
}
Can anyone point out where I may be going wrong. Any help would be great!
You need to "wire up" the event.
If your DataGridView is called DataGridView1 then you need the following line of code in either the constructor for your form, the designer (if you add the event handler via the designer) or in the Load event:
DataGridView1.CellMouseClick += DataGridView1_CellMouseClick;
This attaches the event handler in your code to the event.
Your current sample looks like this:
public event DataGridViewCellMouseEventHandler CellMouseClick;
private void DataGridView1_CellMouseClick(Object sender, DataGridViewCellMouseEventArgs e)
{
MessageBox.Show("Mouse clicked in the datagridview!");
}
There is no need to redeclare the event (public event DataGridViewCellMouseEventHandler CellMouseClick;) unless you are building your own user control that will host a DataGridView and you effectively want to "wrap" or "rebroadcast" that event.
I'm working on an add-in for Outlook 2010. I've created a new Ribbon Tab with a dropdown box. I'd like for the data in the dropdown to update when I click the dropdown button, but nothing is occurring. I've written the sample code below for testing purposes and nothing fires:
private void dropDown1_ButtonClick(object sender, RibbonControlEventArgs e)
{
MessageBox.Show("Dropdown CLick");
}
This is as simple as it gets, but nothing is firing. Any ideas of what I might be doing wrong? The only other code that exists in this ribbon right now is what loads the data.
Thank you
From my understanding
private void dropDown1_Click(object sender, RibbonControlEventArgs e)
{
MessageBox.Show("Dropdown CLick");
}
is what you wanna do. No where did I see ButtonClick as the proper tag.