Scenario
A confirmation message appears when the main application window is being closed by a user to avoid accidental closure of the whole application and losing all opened screens:
Implementation
To use this solution in your project, simply copy the ...\WinSolution.Module.Win\PromptClosingLastMainWindowController.xx file into your WinForms module project.
See Also:
ExitController - prompt when the user is about to exit the application
This example illustrates how to add a title to a map's dot.
To accomplish this, create a ShapeTitleOptions object and assign it to the MapShape.TitleOptions property. Then, specify the title's text via the ShapeTitleOptions.Pattern property.
Note that the title's text can be invisible on a map. So make sure the ShapeTitleOptions.Visible property is set to true.
This example shows how you can implement a custom proxy to make a request to the Bing Maps provider for obtaining map tiles from it.
This example shows how to customize the visual representation of a map shape element (MapRectangle).
This example shows how to customize the visual representation of a map's shape element (MapRectangle).
According to ASPxGridView design, when the CheckedList HeaderFilter is displayed for a column with a filter applied, it displays all possible column values in the CheckedList. This example illustrates how to overcome this behavior and always display only filtered values in the CheckedList.
In this example the ASPxGridView.HeaderFilterFillItems event handler is used to get all available unique column values by iterating through all ASPxGridView rows and removing unnecessary items from the e.Values collection.
Note that this approach would not work if the server-mode binding is used. In this case, get all available unique column values directly from your database server.
This example demonstrates the Banded View.
This example illustrates how to display tooltips for shapes loaded from Shapefiles (Countries.dbf, Countries.shp).
Note that a tooltip displays information (a country name, population) for each map shape from Shapefiles.
This example illustrates how to display tooltips for shapes loaded from Shapefiles (Countries.dbf, Countries.shp).
Note that a tooltip displays information (a country name, population) for each map shape from Shapefiles.
This example demonstrates how to use date-time scale modes of an axis (both manual and automatic).
The Error tooltip is a standard html title attribute. So, we cannot reduce the delay when displaying it. However, we can use a custom tooltip via the ASPxPopupControl.
This example demonstrates how to implement cascaded combo boxes scenario when a child ASPxComboBox operates in a Dynamic List Population mode
1) Enable a "child" ASPxComboBox "Dynamic List Population" mode by setting the EnableCallbackMode property to "true"
2) Implement both the ASPxComboBox.OnItemRequestedByValue event and the ASPxComboBox.OnItemsRequestedByFilterCondition events of the "child" ASPxComboBox;
3) Handle the client-side ASPxClientComboBox.SelectedIndexChanged event of the "parent" ASPxComboBox;
4) Perform a custom callback of the "child" ASPxComboBox via the client-side ASPxClientComboBox.PerformCallback method to update the underlying "child" data.
This example demonstrates how to disable EnableDefaultAppearance of ASPxButton and define a custom style for it.
- Set the ASPxButton.EnableDefaultAppearance property to "false" to completely define a button style either via css or appropriate style properties;
- Define a custom css class or set style properties for the button;
Css:
[CSS].customButton{background-color:Red;cursor:pointer;font-weight:bold;border:3pxsolid#b3b4c3;border-right:3pxsolid#090e61;border-bottom:3pxsolid#090e61;}
[ASPx]<dx:ASPxButtonEnableDefaultAppearance="false"CssClass="customButton"...> ...</dx:ASPxButton>
Properties:
[ASPx]<dx:ASPxButtonEnableDefaultAppearance="false"Cursor="pointer"Width="160"Height="30"...> ...</dx:ASPxButton>
- Define (if needed) custom css classes or properties for PressedStyle, DisabledStyle, HoverStyle, and CheckedStyle to create different styles for each state;
- Define (if needed) the FocusRectBorder properties.
[CSS].customButtonPressed{background-color:#AA0000;}
[ASPx]<dx:ASPxButton...EnableDefaultAppearance="false"CssClass="customButton"...><PressedStyleCssClass="customButtonPressed"></PressedStyle><HoverStyleBackColor="#FF4040"></HoverStyle> ... <FocusRectBorderBorderWidth="1"BorderStyle="Dotted"BorderColor="White"/></dx:ASPxButton>
This example illustrates how to display a custom text inside ASPxGridLookup when all rows are selected.
To implement this scenario, perform the following steps:
Handle the ASPxGridLookup.ValueChanged event to pass some flag to the client side based on the lookup selection:
[JScript]protected void gridLookup_ValueChanged(object sender, EventArgs e){ ASPxGridLookup gl = sender as ASPxGridLookup;if(gl.GridView.Selection.Count == gl.GridView.VisibleRowCount) gl.GridView.JSProperties["cp_selected"] = true;}
Then handle the client-side EndCallback event and set a custom text if our flag has the "true" value (i.e. all rows are selected):
[JScript]function OnEndCallback(s, e){if(s.GetGridView().cp_selected){ s.GetInputElement().value = "(Select All)";delete(s.GetGridView().cp_selected);}}
This example demonstrates how to show the number of selected rows in the Pager bar. It is necessary to create a custom PagerBar template for this purpose. This template will contain ASPxLabel that allows showing the number of selected rows and a standard pager created via the ASPxGridViewTemplateReplacement control:
[ASPx]<PagerBar><table><tr><td><dx:ASPxGridViewTemplateReplacementrunat="server"ReplacementType="Pager"/></td><td><dx:ASPxLabelID="labelInfo"runat="server"Text=""ClientInstanceName="labelInfo"></dx:ASPxLabel></td></tr></table></PagerBar>
We can get the grid's selected row count via the client-side ASPxClientGridView.GetSelectedRowCount method and then set it to ASPxLabel using the label's SetText method:
[JScript]function ShowRowsCount(){ labelInfo.SetText('Selected rows count: ' + gridView.GetSelectedRowCount());}
The WindowedDocumentUIService provides methods to create and show documents as windows.
The TabbedDocumentUIService provides methods to create and show documents as tabs.
The CurrentWindowService provides methods to close a window.
This example demonstrates how to use the above services in a view model.
The following example demonstrates how to use custom summaries to count the total number of empty cells in a certain grid column.
This example illustrates how to show different popup menu items based on the group row level.
ASPxGridView does not allow determining the clicked row level on the client side. Thus, it is necessary to perform a callback to determine the row level on the server side and return the result to the client.
The example shows how to bind the Grid Control to the ICollectionView.
Use buttons to select an item in the collection. A checkbox specifies whether the grid's currently selected item is synchronized with the collection.
This example shows how to create a simple TextEdit that displays a text field and a button that clears the entered text.