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【Stimulsoft Reports.Net教程】在DesignerFx中加載和保存報(bào)表

翻譯|使用教程|編輯：王香|2018-10-12 09:46:25.000|閱讀 463 次

概述：此示例項(xiàng)目演示了如何將報(bào)表模板加載到Flash設(shè)計(jì)器并在編輯后保存，還顯示了如何為報(bào)表注冊(cè)數(shù)據(jù)以進(jìn)行預(yù)覽。

相關(guān)鏈接：

首先，我們需要將Flash設(shè)計(jì)器組件放在ASPX頁(yè)面上并定義必要的事件處理器：OnSaveReport用于保存報(bào)表模板，而OnPreviewReport用于注冊(cè)預(yù)覽數(shù)據(jù)。還可以創(chuàng)建一個(gè)表和Web控件，允許以多種方式加載報(bào)表。

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs"
        Inherits="Load_and_Save_Report_in_the_DesignerFx.Default" %>
<%@ Register assembly="Stimulsoft.Report.WebDesign" namespace="Stimulsoft.Report.Web" tagprefix="cc1" %>
 
<!DOCTYPE html>
 
<html xmlns="//www.w3.org/1999/xhtml">
<head runat="server">
    <title>Load and Save Report in the DesignerFx</title>
    <style type="text/css">
        .style1 {
            width: 80px;
            text-align: center;
        }
        .style2 {
            width: 260px;
            vertical-align: top;
        }
    </style>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <cc1:StiWebDesignerFx ID="StiWebDesignerFx1" runat="server" visible="false"
                OnSaveReport="StiWebDesignerFx1_SaveReport" 
                OnPreviewReport="StiWebDesignerFx1_PreviewReport" />
        <table>
            <tr>
                <td class="style2">
                    <asp:Label ID="Label1" runat="server" Font-Names="Arial" Font-Size="11pt"
                            Text='1. Choose ".mrt" file'></asp:Label><br />
                    <asp:Label ID="Label2" runat="server" Font-Names="Arial" Font-Size="11pt"
                            Text='2. Click "Design" button'></asp:Label><br />
                    <br />
                    <asp:FileUpload ID="FileReport" runat="server" Font-Names="Arial" Font-Size="11pt" Width="264px" />
                    <br />
                    <br />
                    <asp:Button ID="ButtonDesignFile" runat="server" Text="Design" Width="141px"
                        OnClick="ButtonDesignFile_Click" />
                    <br />
                </td>
 
                <td class="style1"><b>or</b></td>
 
                <td class="style2">
                    <asp:Label ID="Label3" runat="server" Font-Names="Arial" Font-Size="11pt"
                            Text='1. Choose Report on server'></asp:Label><br />
                    <asp:Label ID="Label4" runat="server" Font-Names="Arial" Font-Size="11pt"
                            Text='2. Click "Design" button'></asp:Label><br />
                    <br />
                    <asp:DropDownList ID="DropDownListReport" runat="server" Width="250px">
                        <asp:ListItem Value="SimpleList.mrt"></asp:ListItem>
                        <asp:ListItem Value="TwoSimpleLists.mrt"></asp:ListItem>
                        <asp:ListItem Value="Invoice.mrt"></asp:ListItem>
                        <asp:ListItem Value="Shapes.mrt"></asp:ListItem>
                    </asp:DropDownList>
                    <br />
                    <br />
                    <asp:Button ID="ButtonDesignServer" runat="server" Text="Design" Width="141px"
                            onclick="ButtonDesignServer_Click" />
                    <br />
                    <td class="style1"><b>or</b></td>
 
                    <td class="style2">
                        <br />
                        <br />
                        <br />
                        <asp:Button ID="ButtonDesignNew" runat="server" Text="Design New Report" 
                                Width="157px" onclick="ButtonDesignNew_Click" />
                    </td>
                </td>
            </tr>
        </table>
    </div>
    </form>
</body>
</html>

在下一步中，創(chuàng)建按鈕三個(gè)單擊處理程序，以多種方式加載報(bào)表模板。該ButtonDesignFile_Click方法加載從本地計(jì)算機(jī)的報(bào)表中，ButtonDesignServer_Click方法從列表加載selecter報(bào)表和ButtonDesignNew_Click方法創(chuàng)建新的報(bào)表模板。

protected void ButtonDesignFile_Click(object sender, EventArgs e)
{
    if (FileReport.PostedFile != null && FileReport.PostedFile.FileName.Length > 0 &&
        FileReport.PostedFile.InputStream != null)
    {
        StiReport report = new StiReport();
        report.Load(FileReport.PostedFile.InputStream);
        StiWebDesignerFx1.Design(report);
    }
}
 
protected void ButtonDesignServer_Click(object sender, EventArgs e)
{
    if (DropDownListReport.Text != null && DropDownListReport.Text.Length > 0)
    {
        string applicationDirectory = HttpContext.Current.Server.MapPath(string.Empty);
        string reportFileName = applicationDirectory + "\\Reports\\" + DropDownListReport.Text;
 
        StiReport report = new StiReport();
        report.Load(reportFileName);
        StiWebDesignerFx1.Design(report);
    }
}
 
protected void ButtonDesignNew_Click(object sender, EventArgs e)
{
    StiReport report = new StiReport();
    StiWebDesignerFx1.Design(report);
}

該StiWebDesignerFx1_SaveReport方法通過點(diǎn)擊Flash設(shè)計(jì)的保存按鈕調(diào)用。在此方法的參數(shù)中，將傳遞報(bào)表模板對(duì)象。您可以將此報(bào)表模板保存到文件，將數(shù)據(jù)庫(kù)保存為打包字符串或使用其他方式保存。您還可以設(shè)置保存報(bào)表后將在設(shè)計(jì)器中顯示的錯(cuò)誤代碼或字符串消息。

protected void StiWebDesignerFx1_SaveReport(object sender, StiSaveReportEventArgs e)
{
    // Web Designer return StiReport object in the e.Report property
    var reportString = e.Report.SaveToString();
 
    // You can set the error code which will be displayed by the designer after saving
    // -1: default value, the message is not displayed
    // 0: display 'Report is successfully saved' message
    //e.ErrorCode = 1;
 
    // Also you can set the custom message, it will be displayed after saving
    e.ErrorString = "Your report has been saved.";
}

如果需要為報(bào)表預(yù)覽注冊(cè)一些數(shù)據(jù)，則應(yīng)定義StiWebDesignerFx1_PreviewReport方法。在此方法中，您可以加載和注冊(cè)必要的數(shù)據(jù)集，例如加載樣本報(bào)表的XML數(shù)據(jù)。

protected void StiWebDesignerFx1_PreviewReport(object sender, StiReportDataEventArgs e)
{
    string applicationDirectory = HttpContext.Current.Server.MapPath(string.Empty);
 
    DataSet data = new DataSet();
    data.ReadXml(applicationDirectory + "\\Data\\Demo.xml");
    data.ReadXmlSchema(applicationDirectory + "\\Data\\Demo.xsd");
 
    e.Report.RegData(data);
}

示例代碼的結(jié)果如下圖所示：

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