DevExpress.XtraReports手动绑定数据只有一个值的问题
0
悬赏园豆：100
[已解决问题]
解决于 2010-09-08 22:21
1.XtraReports Class File:
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using DevExpress.XtraReports.UI;
/// <summary>
/// Summary description for XtraReport1
/// </summary>
public class XtraReport1 : DevExpress.XtraReports.UI.XtraReport
{
private DevExpress.XtraReports.UI.DetailBand Detail;
private DevExpress.XtraReports.UI.TopMarginBand TopMargin;
private DevExpress.XtraReports.UI.BottomMarginBand BottomMargin;
private XRLabel xrLabel1;
private XRLabel xrLabel2;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
public XtraReport1()
{
InitializeComponent();
//
// TODO: Add constructor logic here
//
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing) {
if (disposing && (components != null)) {
components.Dispose();
}
base.Dispose(disposing);
}
#region Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent() {
string resourceFileName = "XtraReport1.resx";
this.Detail = new DevExpress.XtraReports.UI.DetailBand();
this.TopMargin = new DevExpress.XtraReports.UI.TopMarginBand();
this.BottomMargin = new DevExpress.XtraReports.UI.BottomMarginBand();
this.xrLabel1 = new DevExpress.XtraReports.UI.XRLabel();
this.xrLabel2 = new DevExpress.XtraReports.UI.XRLabel();
((System.ComponentModel.ISupportInitialize)(this)).BeginInit();
//
// Detail
//
this.Detail.Controls.AddRange(new DevExpress.XtraReports.UI.XRControl[] {
this.xrLabel1});
this.Detail.HeightF = 100F;
this.Detail.Name = "Detail";
this.Detail.Padding = new DevExpress.XtraPrinting.PaddingInfo(0, 0, 0, 0, 100F);
this.Detail.TextAlignment = DevExpress.XtraPrinting.TextAlignment.TopLeft;
//
// TopMargin
//
this.TopMargin.Controls.AddRange(new DevExpress.XtraReports.UI.XRControl[] {
this.xrLabel2});
this.TopMargin.HeightF = 100F;
this.TopMargin.Name = "TopMargin";
this.TopMargin.Padding = new DevExpress.XtraPrinting.PaddingInfo(0, 0, 0, 0, 100F);
this.TopMargin.TextAlignment = DevExpress.XtraPrinting.TextAlignment.TopLeft;
//
// BottomMargin
//
this.BottomMargin.HeightF = 100F;
this.BottomMargin.Name = "BottomMargin";
this.BottomMargin.Padding = new DevExpress.XtraPrinting.PaddingInfo(0, 0, 0, 0, 100F);
this.BottomMargin.TextAlignment = DevExpress.XtraPrinting.TextAlignment.TopLeft;
//
// xrLabel1
//
this.xrLabel1.LocationFloat = new DevExpress.Utils.PointFloat(146.875F, 20.79166F);
this.xrLabel1.Name = "xrLabel1";
this.xrLabel1.Padding = new DevExpress.XtraPrinting.PaddingInfo(2, 2, 0, 0, 96F);
this.xrLabel1.SizeF = new System.Drawing.SizeF(100F, 23F);
this.xrLabel1.Text = "xrLabel1";
//
// xrLabel2
//
this.xrLabel2.Font = new System.Drawing.Font("Times New Roman", 14.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.xrLabel2.LocationFloat = new DevExpress.Utils.PointFloat(25.00002F, 10.00001F);
this.xrLabel2.Name = "xrLabel2";
this.xrLabel2.Padding = new DevExpress.XtraPrinting.PaddingInfo(2, 2, 0, 0, 96F);
this.xrLabel2.SizeF = new System.Drawing.SizeF(615F, 68.16668F);
this.xrLabel2.StylePriority.UseFont = false;
this.xrLabel2.StylePriority.UseTextAlignment = false;
this.xrLabel2.Text = "test";
this.xrLabel2.TextAlignment = DevExpress.XtraPrinting.TextAlignment.MiddleCenter;
//
// XtraReport1
//
this.Bands.AddRange(new DevExpress.XtraReports.UI.Band[] {
this.Detail,
this.TopMargin,
this.BottomMargin});
this.Version = "9.3";
((System.ComponentModel.ISupportInitialize)(this)).EndInit();
}
#endregion
}
2.page File:
using System;
using System.Collections.Generic;
using DevExpress.XtraReports.UI;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
XtraReport1 rpt = new XtraReport1();
this.ReportViewer1.Report = rpt;
XRLabel lbl = (XRLabel)rpt.FindControl("xrLabel2", true);
List<Student> stulst = new List<Student>();
for (int i = 0; i < 50; i++)
{
Student stu = new Student();
stu.Name = "name" + i;
stulst.Add(stu);
}
rpt.Bands[BandKind.Detail].Controls.Add(lbl);
lbl.DataBindings.Add("Text", stulst, "Name");
}
class Student
{
string name;
public string Name
{
get { return name; }
set { name = value; }
}
string sex;
public string Sex
{
get { return sex; }
set { sex = value; }
}
}
}
3.结果是这个xrLabel2在页面上只有一个值name0,而期望的结果应该是50条记录，请高手指点，多谢！
4.手动绑定时，不同的控件如何绑定不同的数据源？（因为绑定时要report.datasource=list)
最佳答案
0
把你的 cs 文件的代码整理了下：
在 Page_Load 事件里面调用
protected void Page_Load(object sender, EventArgs e)
{
ReportViewer1.Report = CreateReport();
}
//独立出一个创建报表的方法
XtraReport CreateReport()
{
List<Student> stulst = new List<Student>();
for (int i = 0; i < 8; i++)
{
Student stu = new Student();
stu.Name = "name" + i;
stu.Sex = "男";
stulst.Add(stu);
}
XtraReport1 report = new XtraReport1();
report.DataSource = stulst;
report.BindDetailLabel("xrLabel1", "Name");
report.BindDetailLabel("xrLabel2", "Sex");
return report;
}
报表 XtraReport1 文件 公开个方法来绑定数据源到 报表 Detials 节 的XrLabel 控件上
/// <summary>
/// 绑定数据源
/// </summary>
/// <param name="labelName">xrLabel 控件名</param>
/// <param name="boundName">绑定的数据源字段</param>
public void BindDetailLabel(string labelName, string boundName)
{
var lbl = Detail.FindControl(labelName, true) as XRLabel;
if (lbl != null)
{
lbl.DataBindings.Add("Text", DataSource, boundName);
}
}
这样就可以显示了。
至于 问题补充：4.手动绑定时，多个控件（如lable)如何绑定不同的list(数据源）“这个问题。如果要在一个报表里面显示不同数据源，这个应该做不来， 因为一张报表只能有一个数据源、除非你使用主从报表（子报表）。
下面是两文件完整的代码：
_Default.aspx.cs:
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
ReportViewer1.Report = CreateReport();
}
XtraReport CreateReport()
{
List<Student> stulst = new List<Student>();
for (int i = 0; i < 50; i++)
{
Student stu = new Student();
stu.Name = "name" + i;
stu.Sex = "男";
stulst.Add(stu);
}
XtraReport1 report = new XtraReport1();
report.DataSource = stulst;
report.BindDetailLabel("xrLabel1", "Name");
report.BindDetailLabel("xrLabel2", "Sex");
return report;
}
}
class Student
{
string name;
public string Name
{
get { return name; }
set { name = value; }
}
string sex;
public string Sex
{
get { return sex; }
set { sex = value; }
}
}
XtraReport1.cs:
public partial class XtraReport1 : DevExpress.XtraReports.UI.XtraReport
{
public XtraReport1()
{
InitializeComponent();
}
/// <summary>
/// 绑定数据源
/// </summary>
/// <param name="labelName">xrLabel 控件名</param>
/// <param name="boundName">绑定的数据源字段</param>
public void BindDetailLabel(string labelName, string boundName)
{
var lbl = Detail.FindControl(labelName, true) as XRLabel;
if (lbl != null)
{
lbl.DataBindings.Add("Text", DataSource, boundName);
}
}
}
收获园豆：100
多谢！辛苦了！
其他回答(2)
0
有个自动生成列的属性，我用过winform的版本。
0
仍然只显示一条记录啊
加一句代码：
DataSource = dt;(dt为DataTable，数据源)
