基础·取出DataWindow中的列名

[参考]：《Power Builder Help》(8.0)

DataWindow Reference —— DataWindow Object Properties —— Controls in a DataWindow and their properties —— Properties for the DataWindow object

DataWindow Reference —— DataWindow Object Properties —— Controls in a DataWindow and their properties —— Properties for Column controls in DataWindow objects

DataWindow Reference —— Methods for the DataWindow Control —— Describe method

 

 

Column.Count

Description: The number of columns in the DataWindow object.

Syntax: dw_control.Object.DataWindow.Column.Count

 

 

Name

Description: The name of the control.

Syntax: dw_control.Object.controlname.Name

 

 

Describe method (DataWindows)

Description: Reports the values of properties of a DataWindow object and controls within the DataWindow object.

Syntax: string dwcontrol.Describe(string propertylist)

Argument

dwcontrol: A reference to a DataWindow control,DataStore, or child DataWindow.

propertylist: A string whose value is a blank-separated list of properties or Evaluate functions For a list of valid properties,see "DataWindow Object Properties".

Return value

string —— success

!         —— invalid item

?         —— no value for a property

NULL   —— argument's value is NULL

 

[简单示例]：

string ls_name[]int li_counts,nstring ls_noli_counts = long(dw_1.object.datawindow.column.count)//li_counts = long(dw_1.Describe(datawindow.column.count))for n = 1 to li_countsls_no = "#" + string(n) + ".Name"ls_name[n] = dw_1.Describe(ls_no)next