C# :: WPF Databound ListView Item Click Event?
Aug 27, 2014
I was using the same item click event on another listview, and it worked perfectly... I don't know why this is happening, but here's my problem:
When I double click on an item, and try to obtain its index in the listview, the items index always comes back as -1... Obviously -1 isn't an index, and I'm guessing that it is returning -1 because that item does not exist on the listview, but from what I'm seeing, it is impossible for the item not to be inside of the listview...
Here is the xaml for my listview:
<ListView x:Name="lstBookmarks" HorizontalAlignment="Left" Height="250" Margin="10,10,0,0" VerticalAlignment="Top" Width="327" ItemsSource="{Binding Bookmarks}">
<ListView.View>
[Code]....
When I uncomment the MessageBox, it shows -1... This is obviously not right lol. I have the same exact click event in another class, and I obtain the items index the same exact way.. The only difference between this listview and that one is that this listview is databound.. Is that the issue? If so, how does one overcome it?
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Apr 9, 2013
I want to add ComboBox inside ListView on mouse double click event. On each double click, a new ComboBox should be added on the next row.
I tried it with the code below, but its not working.
private void form_DblClick(object sender, form_DblClickEvent e)
{
ComboBox c;
this.Controls.Add(c = new ComboBox());
c.Items.Add("Input");
c.Items.Add("Delay");
c.Items.Add("Message");
c.Items.Add("comment");
listView1.Controls.Add(c);
}
actually i want to add combobox will all of the above elements in one combobox..when i double click it again..in next line another combobox will be added with all elements...
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Jan 8, 2015
<TreeView Grid.Column="0" Margin="0,-15,0,15" Grid.ColumnSpan="1">
<TreeViewItem Header="Custom"/>
<TreeViewItem Header="All Conferences"/>
<TreeViewItem Header="Atlantic Coast Conference" MouseDoubleClick="TreeViewItem_MouseDoubleClick_1">
<TreeViewItem Header="Atlantic" MouseDoubleClick="TreeViewItem_MouseDoubleClick"/>
<TreeViewItem Header="Coastal"/>
[Code] ....
I am trying to do a LINQ Query by Double Clicking the child node. When I click on the parent node it brings up the correct data. But when I click on the child node it still brings up the data from the parent node. How do I get the child node to display the correct data?
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Jan 17, 2015
I'm trying to create a program which can pan by keep clicking and move the mouse
1. First, I create a class that inherited from the UserControl Class
public partial class CanvasCtrl : UserControl
protected void OnMiddleMouseDown(object sender, MouseEventArgs e) {
if (e.Button == MouseButtons.Middle) {
[Code] ....
2, Second, I create the void in that class too, and write the code to get it to catch the event
public void MainMouseAction() {
this.MouseClick += new MouseEventHandler(OnMiddleMouseDown);
}
It not work, how to solve this out ?
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Oct 15, 2012
I have successfully compiled a code where I created an array of buttons. I have added a click event to it like this :
Code:
buttons[indexofhashis2]->Click += gcnew System::EventHandler(this, &Execute::GOBUT_Click);
I have a standard event like this
Code:
private: System::Void GOBUT_Click(System::Object^ sender, System::EventArgs^ e) {
int x;
x = sender->Location.X;
}
Returns error saying Location is not a member of Object^.
I'm trying to create an array of button (user/runtime created buttons) and get different interpretations of the click event depending of wich button is clicked.
For example, if we create buttons[0] I wish to get the 0 or something relevant into the GOBUT_Click event.
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Mar 27, 2013
If we work with a ListView,and want implement some functions like OnLBDblClick(), we only have a CPoint, but not the column and row that this point suppose. How can i Know that, is there another type of functions that gave us the row and column?
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Jan 25, 2015
I'm using listView to show content (selected item) in ComboBox, TextBox, Labels..
I was using
DropDownStyle = DropDown
and actually i use DropDownStyle = DropDownList.
With this change,
comboB.Text = Name;
stopped working correctly (onload), only work after first click any item. Why?
I tried too
private void comboB_KeyPress(object sender, KeyPressEventArgs e)
{
e.Handled = true;
}
but with copy/paste with mouse i can add text in ComboBox.
PS: My objective is combobox no editable.
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Mar 18, 2015
I'm having problem using the click event in a web browser control. I have a control called CIEBrowser that implements a Web control. Here a message_map:
Code:
IMPLEMENT_DYNCREATE(CIEBrowser, CWnd)
BEGIN_MESSAGE_MAP(CIEBrowser, CWnd)
ON_COMMAND_RANGE(ID_IEHOME,ID_IESTOP, OnToolBarCmd)
ON_UPDATE_COMMAND_UI_RANGE(ID_IEHOME,ID_IESTOP, OnUpdateToolBarCmd)
ON_NOTIFY_EX_RANGE(TTN_NEEDTEXTW, 0, 0xFFFF, OnToolTipNotify)
ON_NOTIFY_EX_RANGE(TTN_NEEDTEXTA, 0, 0xFFFF, OnToolTipNotify)
END_MESSAGE_MAP()
I want to implement a derived class called CFulltextCtrl.
Code:
IMPLEMENT_DYNCREATE(CFulltextCtrl, CIEBrowser)
BEGIN_MESSAGE_MAP(CFulltextCtrl, CIEBrowser)
ON_WM_PAINT()
ON_WM_HELPINFO()
END_MESSAGE_MAP()
I have a dialog with a control using this CFulltextCtrl. I can create and show the html perfectly inside the form. But all links inside this control don't work (scenario 1). If I create a form who have a control of the type CIEBrowser, the EXACTLY same html code works perfectly (scenario 2).
In particular, I need that when I click in one link, execute a method called OnClick, who performs all that I need, just like in scenario 2.
This is my DISPATCH_MAP in the derived class (CFulltextCtrl):
Code:
BEGIN_DISPATCH_MAP(CFulltextCtrl, CIEBrowser)
DISP_FUNCTION_ID(CFulltextCtrl,"HTMLELEMENTEVENTS2_ONCLICK", DISPID_HTMLELEMENTEVENTS2_ONCLICK,
OnClick, VT_EMPTY, VTS_DISPATCH)
DISP_FUNCTION_ID(CFulltextCtrl,"HTMLELEMENTEVENTS2_ONKEYDOWN", DISPID_HTMLELEMENTEVENTS2_ONKEYDOWN,
OnKeyDown, VT_EMPTY, VTS_DISPATCH)
DISP_FUNCTION_ID(CFulltextCtrl,"HTMLELEMENTEVENTS2_ONKEYUP", DISPID_HTMLELEMENTEVENTS2_ONKEYUP,
OnKeyUp, VT_EMPTY, VTS_DISPATCH)
END_DISPATCH_MAP()
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Feb 25, 2015
I know how to add a new item to a folder right-click menu, using the registry, but it won't show up on file right-click menu. give me a link to how this is done? I want this new menu appear on every file R-C menu, file registered with the system or not. Is there a simple way to do this as adding a item to folder R-C menu, or will i have to iterate all the registered file types in registry to do it. I tried google with many search terms, but i can't find a source for this.
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Apr 23, 2015
I have a list with 2 items in it. When I double click on item 1, I want to open Window1.xaml, when I double click on item 2, I want to open Window2.xaml...
The code below works for popping up a message box, or window for that matter. But I really need to get the Window1 and Window2 based on the clicking of the correct selected item in the list.
Here is some code:
<ListView d:DataContext="{d:DesignData }" Name="PharmacyLv" IsSynchronizedWithCurrentItem="True" l:Sortbehavior.CanUserSortColumns="true" >
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<EventSetter Event="MouseDoubleClick" Handler="ListViewItem_PharmDoubleClick" />
</Style>
</ListView.ItemContainerStyle>
[code].....
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Jul 26, 2014
I'm having a hard time figuring how to get my imagelist index 3 icon to display in the nodes "N1" and "V Speeds" below? So, as you can see in the attachment, the closed folder icon is currently shown which is index 0 in the imagelist. But I want index icon 2 to show in these two nodes.
treeView.BeginUpdate();
treeView.Nodes.Clear();
treeView.Nodes.Add(new TreeNode("Checklist"));
[Code].....
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Sep 15, 2014
I have two menu items. When item 1 is disabled, I want item 2 to be disabled as well. In the OnUpdate handler of menu item 1, I have tried to use "t_pMenu = pCmdUI->m_pMenu;", "t_pMenu = pCmdUI->m_pSubMenu;" and "t_pMenu = pCmdUI->m_pParentMenu;" but I always get NULL t_pMenu. How can I achieve this purpose?
Code:
void CDummyView::OnUpdateMenuItem1(CCmdUI* pCmdUI)
{
if(m_bShowMenuItem1) {
pCmdUI->Enable(TRUE);
[Code]....
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Apr 22, 2014
at the moment I lack access to the pc with the code on it, so for now I will try to keep my question basic.
now here is my problem: I have a listview witch is populated by user input(lets say for the ease of argument that the input is "first-name" "last-name" and "e-mail adres") all of with get there information from textboxes.
then all the information gets stored in a list and on closing that list is stored in a xml-file in the following format
<Root>
<Data>
<first-name>
Samual
[Code].....
the input, saving and loading is no problem. when you open the file this listview is in view = List so that you only see the last-name(I prefer it that way since I know how to code that) and when you click it it fills the textboxes with the corresponding information.
what I am trying to figure out it how to make it that it sorts itself(preferred sorting when something is changed).
I tried the ListView.sorting = SortOrder.Ascending; when I do it that way it messes up the corresponding information(is it clear what I mean or do I need to add an example).
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Jan 15, 2013
i'm making a hotel reservation system for our final project in database management.. i'm having difficulty on how can i attach an image in a listview, if i insert a room category, the roomstatus will automatically insert a value of 1 on the table, and in the listview the data 1 in the column of status must be view as an image that indicates that the room is available...
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Oct 28, 2014
i have a list view, which is shown below as an example, i am hoping to achieve to find out a method of adding up the values in the Sub2 Column in C#. Then i will output it to a label on my form. So the total should be 14. But i don't have a pre-defined number of rows, and thats what i needs to be. I thought of something like
label1.Text = ListView1.SubItem2.text
But no such luck....
Index Item Sub1 Sub2
-------------------------------------------
0 IE Micro 8.0
1 FF Mozil 3.0
2 Safari Apple 3.0
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Oct 4, 2014
I have 3 columns already made Product, Price, Quantity, - what I want to do is take the textbox's txtName, txtPrice, txtQuantity, and add them to the columns in the right specific places.
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Mar 26, 2013
Is there an easy way to create a column of buttons ina listView?
I need that every file of the listView has a button in the first cell. Is that possible?
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Jan 23, 2014
I've been trying for a while now and I can't seem to replicate this model without using a grid. I've tried making some simple custom panels and a wrappanel that makes a new column after n pixels or n number of items which works; however, I'm unable to find a way to stagger each column.
Here's an image of what I'm trying to do:
enter image description here
I've made solutions that use a Grid that do stagger the columns however what I need is a panel that uses columns only and it must be able to be used as the itemspanel for a ListView.
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Sep 11, 2014
I'm trying to use a listview component to show all the fonts on my system, and display each item (row) in the actual font design.
When I run the following code, nothing displays in the listview.
If I rem out line 4, then the list populates with all the fonts, but of course, in the default listview font.
I thought I read somewhere that each item in a listview can be set to a different font.
int i = 0;
foreach (FontFamily oneFontFamily in FontFamily.Families) {
listView1.Items[i].Font = new Font(oneFontFamily, 10);
listView1.Items.Add(oneFontFamily.Name);
i++;
}
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Jan 9, 2013
//user list view
da = new SqlDataAdapter("SELECT * FROM [user]", con);
DataTable t = new DataTable();
ds = new DataSet();
da.Fill(ds);
t = ds.Tables[0];
listView1.View = View.Details;
[Code] ....
I tried with datagridview.refresh, update but its not working can any body sugesst me what to do for refresing the data ....do timer we have to use..? if yes then how ...?
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Apr 2, 2013
I know how to change the back color of text in th ListView for all the View, but if I only want to change the back color of one cell i don`t find any way. Is it possible?
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Feb 4, 2013
How to display the record that match for the duplicate items in a Listview. I use C# with linq queries.
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Oct 5, 2013
This is my problem in my subject programming but i dont how to use Array in windows form ... If i run my code i want my Data in listview would not be disappear if i close the form ...?
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May 23, 2012
How to use button with right click events in mfc?
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Feb 18, 2015
i need to change the text in multiple ComboBoxs. i could do it one by one, but i have about 11 i need to change. i feel like doing it one at a time is not efficient. i was wondering if i can put the comboboxs into an array so i can use a for loop to change them all with out writeing it out 11 times.
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Apr 14, 2014
I am creating one c# project. In this project I have one mdi form and many child forms.
All the child forms contains one panel named as panel1.
Now when child form opens i use the following code in all child form all child forms' load event contains the following line.
this.WindowState = FormWindowState.Maximized;
and all child forms' resize event contains the following line.
panel1.Left = (this.ClientSize.Width - panel1.Width) / 2;
panel1.Top = (this.ClientSize.Height - panel1.Height) / 2;
so my question is if possible that the above code i write only once so i donot write this code in all the child forms load and resize event.
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