Documents

NextGrid & NextDBGrid

• Integrating Inplace Editors
• Upgrade existing projects for loading changes
• Grid Report Tutorial
• FieldChooser Tutorial
• Using Editors in runtime
• NextGrid How To
• Html Column Tutorial
• NextGrid Slide Style Tutorial
• InputLine Tutorial
• Edit events in NextGrid
• NextGrid Vista Style

NextGrid

• NextGrid Quick Start
• Graphic Column Tutorial
• Optimize NextGrid
• Custom Draw in NextGrid
• VirtualColumn Tutorial
• Export to XML from NextGrid
• NextGrid Custom Sorting
• TreeColumn Tutorial

NextDBGrid

• Sorting records in NextDBGrid
• NextDBGrid Events
• NextDBGrid Quick Start
• NextDBGrid How To
• LookupColumn Tutorial

NextInspector

• NextInspector Item Types
• NextInspector Quick Start
• NextDBInspector Tutorial
• NextInspector Advanced tutorial
• ToolbarItem tutorial
• Map VCL property to item

NextSheet

• Formating in NextSheet
• NextSheet Sample Project
• NextSheet Quick Start
• NextSheet Print Method

NextCollection

• NxInfoPanel Tutorial
• Vista Styled Panels
• NxPathControl and NxNotebook tutorial
• NxAlertWindow Tutorial
• NxPathControl Quick Start
• NxButton Tutorial
• NxOutlookBar Tutorial
• NxFlipPanel and NxHeaderPanel Quick Start
• NxPageControl and NxNotebook Quick Start

Misc

• DateTime FormatMask
• NxAutoCompletion Tutorial
• Using NxColorScheme
• NxComboBox styles
• Enable typing unicode characters in InplaceEditors
• NxProgress Tutorial
• NxPreview Quick Start
• Numeric FormatMask
• NxVirtualDataSet tutorial
• Component Names Change
• 32bit Bitmaps Tutorial
• Quick update

Labs

• NxReport Project

Related Articles:

NxComboBox has three new styles placed inside DisplayMode property called dmNameList, dmValueList and dmIdentList.

These three new styles do not allow editing of the text just like the dsDropDownList style.

What makes them different from the dsDropDownList style is that they use the Name=Value feature of TStrings.

Example:

clBlue=Blue
clGreen=Green
clYellow=Yellow

Both dmNameList and dmValueList are ment to implement lookup functionality with an NxComboBox.

Table 1: DisplayMode property

Name	Meaning
dmNameList	Displays the Names array of Items property.
dmValueList	Displays the Values array of the Items property.

Both these lists styles let you retrieve the Name and Value of the chosen item through two new properties called ItemName and ItemValue.



Figure 1: Example of the dmNameList style.



Figure 2: Example of the dmValueList style.

The last new NxComboBox style called dmIdentList expects a numericall Name part of the Name=Value pairs and uses the Name part as Ident level for the NxComboBox Items. The result is that a simple tree-like structure is shown in the DropDownList.

The ItemName returns the IdentLevel of the chosen item and ItemValue returns the chosen item without leading spaces.



Figure 3: Example of the dmIdentList.

Notes:

1. The ItemValue and ItemName are undefined for the dsDropDown and dsDropDownList styles.
2. The results are also undefined for duplicate names just like the behaviour of the TString implementation.