【发布时间】：2011-05-16 15:53:35
【问题描述】：
我正在使用 Visual Studio 2008 Shell 和 SQL Server 2008。目前我能够显示 DataGrid。但现在我有一个新要求，我必须在其中一列中启用文本搜索。我该如何实施？我尝试实施我在网上找到的解决方案，但我仍然遇到错误。请温柔；我是新手VB.Net程序员！
由于这是 Shell 版本，并且源数据位于我无法直接访问的另一台机器上，因此我根本无法调试。
以下是我的所有代码。请注意，目前我什至无法将其视为 ASPX 页面，因为仍然存在一些错误。你能给我一个 URL 或一些简单的提示让我在开发这个时遵循吗？谢谢！
下面是我的代码：
<%@ Page Language="VB" Debug="true" Src="../Global.vb"%>
<%@ Import Namespace="ChartDirector" %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.OleDB" %>
<%@ Import Namespace="System.Math" %>
<%@ Import Namespace="system.data.SqlClient" %>
<%@ Import Namespace="System.Web.UI.WebControls" %>
<%@ Register TagPrefix="chart" Namespace="ChartDirector" Assembly="netchartdir" %>
<html>
<SCRIPT LANGUAGE="VB" RUNAT="Server">
Sub Page_Load(ByVal Sender As Object, ByVal E As EventArgs)
If Not IsPostBack Then
Main()
Else
If part_transfer.Value.Trim() <> "" Then
'ShowChart()
Panel1.Visible = False
Panel2.Visible = True
End If
End If
End Sub
Dim DSTableData As New System.Data.DataSet
Sub Main()
'------------------------- Query database and get arrays for the chart and bind query results to datagrid ----------------------------------------
If check1.Checked Then
DSTableData = GlobalFunctions.GlobalF.FillSparePartsTable(1)
Else
DSTableData = GlobalFunctions.GlobalF.FillSparePartsTable(0)
End If
Me.Button1 = New System.Web.UI.Control
Me.TextBox1 = New System.Web.UI.Control
dgTable.DataSource = DSTableData
dgTable.DataBind()
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
For i As Integer = 0 To DSTableData.Tables(0).Rows.Count - 1
If dgTable.Items(i).ToString = TextBox1.Text Then
Me.dgTable.SelectedItem(i)
Me.dgTable.SelectedIndex(i)
Exit Sub
End If
Next
End Sub
Sub ScrollToRow(ByVal row As Integer)
If Not Me.DataBind(row) Is Nothing Then
Me.GridVScrolled(Me, New ScrollEventArgs(ScrollEventType.LargeIncrement, row))
End If
End Sub
Private Sub DataGrid1_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DataGridItemEventArgs)
If e.Item.ItemType = ListItemType.AlternatingItem Or e.Item.ItemType = ListItemType.Item Then
Dim thepriority As Integer
If e.Item.Cells(7).Text = " " Then
thepriority = 3
Else
thepriority = e.Item.Cells(7).Text
End If
Dim thecolor As String
If thepriority = 1 Then
thecolor = "Red"
Else
If thepriority = 2 Then
thecolor = "Yellow"
Else
thecolor = "Green"
End If
End If
Dim i As Int16
If thepriority = 1 Then
For i = 0 To 6
e.Item.Cells(i).BackColor = System.Drawing.Color.Red
Next
Else
If thepriority = 2 Then
For i = 0 To 6
e.Item.Cells(i).BackColor = System.Drawing.Color.Yellow
Next
Else
For i = 0 To 6
e.Item.Cells(i).BackColor = Drawing.Color.LightGreen 'System.Drawing.Color.Green
Next
End If
End If
Dim itemType As System.Web.UI.WebControls.ListItemType
Dim thepart As String = e.Item.Cells(0).Text
Dim thepartdesc As String = e.Item.Cells(1).Text
itemType = CType(e.Item.ItemType, System.Web.UI.WebControls.ListItemType)
If (itemType <> System.Web.UI.WebControls.ListItemType.AlternatingItem) Then
e.Item.Attributes.Add("OnMouseOver", "this.style.backgroundColor = '" & thecolor & "';")
e.Item.Attributes.Add("OnMouseOut", "this.style.backgroundColor = 'white';")
e.Item.Attributes.Add("OnClick", "GetChart('" & thepart & "','" & thepartdesc & "','" & thecolor & "',this);")
Else
e.Item.Attributes.Add("OnMouseOver", "this.style.backgroundColor = '" & thecolor & "';")
e.Item.Attributes.Add("OnMouseOut", "this.style.backgroundColor = '#eeeeee';")
e.Item.Attributes.Add("OnClick", "GetChart('" & thepart & "','" & thepartdesc & "','" & thecolor & "',this);")
End If
End If
End Sub
Private Sub btnExport_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnExport.Click
GlobalFunctions.GlobalF.DataGridToExcel(dgTable, Response)
End Sub
Sub ReRun_Main(ByVal sender As Object, ByVal e As EventArgs)
Main()
End Sub
</SCRIPT>
<script type="text/javascript" language="javascript">
function GetChart(thepart, thepartdesc, thecolor, row)
{
Form1.part_transfer.value = thepart;
Form1.part_desc_transfer.value = thepartdesc;
Form1.submit();
}
</script>
<head>
<title></title>
<style type="text/css">
.DataGridFixedHeader {background-color: white; position:relative; top:expression(this.offsetParent.scrollTop);}
</style>
</head>
<body>
<form runat="Server" method="post" id="Form1">
<div style="font-size:18pt; font-family:verdana; font-weight:bold; color:#336699">
Parts Watch List
</div>
<hr style="font-weight: bold; font-size: 20pt; color:#000080;" />
<div style="height: 380px; text-align: center; position: static;">
<input id="part_transfer" type="hidden" runat="server"/>
<input id="part_desc_transfer" type="hidden" runat="server"/>
<asp:Panel id="Panel1" runat="server" HorizontalAlign = "Center">
<span style="font-weight: bold; text-align: left; font-size: 15pt;">
Calculation:</span><br />
Reliability Rate = 1 - ( number of failed parts in the last 6 months / Part Multiplier * Average instrument Census in the last 6 months),<br />
Where
<br />
Number of failed parts - Summation of failures of a part for a 6 month period<br />
Part Multiplier - Number that represents how many times a part is used on the intrument<br />
Average instrument census - Average of the instrument census for the same
6 month timeframe as failed parts<br />
<br />
Please choose one of the parts below to view the control charts.</p>
</asp:Panel>
<asp:Panel id="Panel2" runat="server" Visible="false">
<chart:WebChartViewer id="WebChartViewer1" runat="server" HorizontalAlign="Center" />
</asp:Panel>
</div>
<hr style="width: 90%; position: static;" />
<div style="text-align: center; position: static; ">
<asp:Label id="CensusLastUpdate" runat="server"/><br />
<asp:Button id="btnExport" runat="server" Text="Export to Excel"></asp:Button>
<asp:CheckBox id="check1" Text="Display Only Parts Below Threshold" TextAlign="Right" AutoPostBack="True" OnCheckedChanged="ReRun_Main" runat="server" />
<asp:TextBox ID="TextBox1" Text="Enter Part Number" runat="server" />
<asp:Button ID="Button1" Text="Search" runat="server" />
</div>
<% Dim scrollPosURL As String = "../includes/ScrollPos.htc" %>
<input id="saveScrollPos" type="hidden" runat="server" name="saveScrollPos"/>
<table border="0" cellspacing="0" align="center" style="">
<tr>
<td>
<div persistID="<%= saveScrollPos.UniqueID %>" scrollPOS="<%= saveScrollPos.value %>" style="OVERFLOW: auto;
HEIGHT: 400px; BEHAVIOR: url(<%= ResolveURL(scrollPosURL)%>);">
<ASP:DATAGRID ID="dgTable" HorizontalAlign="Center" runat="server" AutoGenerateColumns="False" ShowHeader="True" OnItemDataBound="DataGrid1_ItemDataBound">
<AlternatingItemStyle BackColor = "#eeeeee" />
<HEADERSTYLE CssClass="ms-formlabel DataGridFixedHeader" BackColor = "#336699" ForeColor = "#ffffff" Font-Bold = "true" />
<COLUMNS>
<ASP:BOUNDCOLUMN HEADERTEXT="Part No." DATAFIELD="PN" READONLY="true" ItemStyle-Width="130px" ItemStyle-Font-Size="8"/>
<ASP:BOUNDCOLUMN HEADERTEXT="Part Desc" DATAFIELD="PART_DESC" READONLY="true" ItemStyle-Width="150px" ItemStyle-Font-Size="8"/>
<ASP:BOUNDCOLUMN HEADERTEXT="Number of Failed Parts (last 6 months)" DATAFIELD="numFailed" READONLY="true" ItemStyle-Width="200px" ItemStyle-Font-Size="8"/>
<ASP:BOUNDCOLUMN HEADERTEXT="Average Census (last 6 months)" DATAFIELD="AvgCensus" READONLY="true" ItemStyle-Width="215px" ItemStyle-Font-Size="8"/>
<ASP:BOUNDCOLUMN HEADERTEXT= "Part Multiplier" DATAFIELD="PartMultiplier" READONLY="true" ItemStyle-Width="100px" ItemStyle-Font-Size="8"/>
<ASP:BOUNDCOLUMN HEADERTEXT= "Criticality" DATAFIELD="Criticality" READONLY="true" ItemStyle-Width="100px" ItemStyle-Font-Size="8"/>
<ASP:BOUNDCOLUMN HEADERTEXT="Reliabilty Rate" DATAFIELD="ReliabilityRate" READONLY="true" ItemStyle-Width="105px" ItemStyle-Font-Size="8"/>
<ASP:BOUNDCOLUMN HEADERTEXT="Priority" DATAFIELD="PRIORITY" READONLY="true" Visible="False" ItemStyle-Width="0px" ItemStyle-Font-Size="8"/>
</COLUMNS>
</ASP:DATAGRID>
</div>
</td>
</tr>
</table>
</form>
</body>
</html>
【问题讨论】：
-
没有代码显示。另外，您到底在寻找什么？是列中的文本与搜索字符串匹配的行吗？
-
对不起，我开始展示代码，但由于它超过 200 行，我认为最好只获取 URL/提示并自己浏览代码。但是，如果对您有帮助，我很乐意发布此代码！我正在搜索列中的文本与搜索字符串匹配的行。
-
另外，我希望我可以使用 DataGridView，但我认为我的版本不支持这个。只是较旧的 DataGrid。
-
好的，我刚刚添加了我的 ASPX 代码
标签： asp.net vb.net search datagrid