我已经根据下拉文本声明了变量:
Dim strDataCollection As String = ddlDataCollection.Text
Dim strYear As String = DdlYear.SelectedItem.Text
Dim strSubject As String = DdlSubject.Text
Dim strTeachingGroup As String = DdlTeachingGroup.Text
Dim strSubgroup As String = ddlSubgroup.SelectedItem.Text
然
我已经声明了变量,并从asp中的下拉列表中填充。但是,在页面负载上,标签没有填充,只有当我在下拉列表中更改值时,它们才会填充。因此,变量正在处理标签,只是最初没有在页面加载时使用。
Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load
Dim strDataCollection As String = ddlDataCollection.Text
Dim strYear As String = DdlYear.Text
Dim strSubject As String = D
Protected Sub GridView1_RowUpdating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewUpdateEventArgs) Handles GridView1.RowUpdating
sqlqrystrng = "UPDATE temp_zone set zone_id = @zoneid, zone_name = @zonename WHERE auto_id = @autoid"
Dim strautoid As String = GridView1.Ro
我通过GridView将数据绑定到ListView中嵌套的ItemDataBound中,当我分页ListView时,它正在丢失datakey值。下面是DataBound事件:
Protected Sub gvResult_ItemDataBound(sender As Object, e As System.Web.UI.WebControls.ListViewItemEventArgs) Handles gvResult.ItemDataBound
If e.Item.ItemType = ListViewItemType.DataItem Then
我必须为学校做一个计算器。这些按钮应该在单击时在文本框中构建一个字符串,然后当按下=按钮时,将根据数字和操作计算答案。我不知道如何从字符串中提取数字来对它们进行计算。例如,如果我按下"2 +2 =“,我如何将它们作为整数相加,从而输出为4?任何帮助都是非常感谢的。这是我到目前为止所掌握的
<head>
<script runat="server">
Dim value_all As String = "0"
Public Shared first_value As Integer
Public Shared second_valu
我有一个XPath表达式,它应该只返回/获取文档中的一个节点。但它得到的不仅仅是这一点。我不明白为什么。
代码隐藏:
Dim xmlNameTbl As XmlNameTable = rootDoc.NameTable
Dim xmlNS As XmlNamespaceManager = New XmlNamespaceManager(xmlNameTbl)
xmlNS.AddNamespace("asp", "http://test.com/asp")
Dim sectionPosition As String = rowNode.GetAttribute(
我有一个GridView,其中包含一个带有复选框的列。标题模板有一个复选框,用于选中该列中的所有其他复选框。
当我勾选并执行一个事件时,我得到了这个错误:
Object reference not set to an instance of an object.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and wh
我需要从commandArgument获得LinkButton中的值,但是当我在字母B上悬停时,我看到的是这个,而不仅仅是字母:
这些是它的代码:
'problem here with the commandArgument
Sub LetterGuessed(sender As Object, e As CommandEventArgs)
'First, make the letter selected disabled
Dim clickedButton As LinkButton = e.CommandArgument
创建了两个ASP.3.0文件:-Main.asp -Colors.asp
Main.asp
<%
Blah Blah Blah...
If sColor = true then
Server.Execute "Colors.asp"
End If
'If sColor is true, Pops over to Colors.asp
'Then pops right back over to here again
'Once back here again, it has no idea what
'sRed or sBlue wa
我们在Oracle中有一个带有SYS_REFCURSOR输出参数的过程,该参数返回我们想要绑定到ASP.NET GridView控件的数据。我以前见过这样做,但我找不到我用来解决问题的原始参考。
以下是该过程的外观:
create or replace PROCEDURE GETSOMEDATA
(
P_Data OUT SYS_REFCURSOR
)
AS
BEGIN
OPEN P_Data FOR SELECT * FROM SOMETABLE;
END GETSOMEDATA;
就目前而言,GridView还只是个框架:
<asp:GridView ID="