我有一些问题,页面和我正在处理的代码。请参阅代码:以正确的格式输入字符串。 VB.net - 新的这个,所以需要帮助
Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load
Dim dtTable As DataTable = Nothing
Dim intConnectionId As Integer = 0
If Page.IsPostBack Then
' Get user data from session
With HttpContext.Current
intConnectionId = CInt(result.Value)
End With
End If
' Remove connection
modConnections.Delete(intConnectionId)
' Clear desks attahced to connection
modDeskText.ClearUserDesk(intConnectionId)
Using sqlCommand As New SqlCommand
With sqlCommand
.CommandText = "usp_connectsdetailedlist"
.CommandType = CommandType.StoredProcedure
End With
Execute(sqlCommand, dtTable)
End Using
With Rep1
.DataSource = dtTable.DefaultView
.DataBind()
End With
If Not IsNothing(dtTable) Then
dtTable.Dispose()
End If
End Sub
[FormatException: Input string was not in a correct format.]
Microsoft.VisualBasic.CompilerServices.Conversions.ParseDouble(String Value, NumberFormatInfo NumberFormat) +213
Microsoft.VisualBasic.CompilerServices.Conversions.ToInteger(String Value) +90
[InvalidCastException: Conversion from string "" to type 'Integer' is not valid.]
Microsoft.VisualBasic.CompilerServices.Conversions.ToInteger(String Value) +238
frmConnects2.Page_Load(Object sender, EventArgs e) in D:\Source Code\PTS\PTS Online .NET - Copy\PTS Online .NET\PTS Online .NET stu\frmConnects2.aspx.vb:17
System.Web.UI.Control.OnLoad(EventArgs e) +95
System.Web.UI.Control.LoadRecursive() +59
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +678
就行了:
intConnectionId = CInt(result.Value)
我收到上述错误。无论我做什么,我都无法将数据转换为我需要的格式。我现在明白这与右侧代码无关。
我的目标是从表中获取数据,放入文本框(<input type="text" id="result" runat="server" />
)id =“result”,然后使用SQL中选择的记录的“id”删除连接。参见下表:使用
<ItemTemplate>
<tr class="<%# ReturnValuesAsColor(Eval("online"), Eval("mobile"), Eval("server_proc"))%>">
<td><%# Eval("id").ToString%></td>
<td><%# Eval("user_id").ToString%></td>
<td><%# Eval("user_name").ToString%></td>
<td><%# Eval("workstation_name").ToString%></td>
<td><%# Eval("ip_address").ToString%></td>
<td><%# Eval("connect_date").ToString%></td>
<td><%# Eval("refresh_date").ToString%></td>
<td><%# Eval("app_ver").ToString%></td>
<td><%# Eval("app_date").ToString%></td>
<td><%# CBool(Eval("get_messages_flag")).ToString%></td>
<td><%# FixNumbers(Eval("message_type_flags"))%></td>
<td><%# Eval("online").ToString%></td>
<td><%# Eval("mobile").ToString%></td>
<td><%# Eval("group_name").ToString%></td>
<td><%# Eval("server_proc").ToString%></td>
<td><input type="submit" class="ui-button ui-widget ui-state-default ui-corner-all" value="delete connection" onclick="clearText(result); CopyId(<%# Eval("id").ToString%>);" /></td>
</tr>
</ItemTemplate>
JS:
<script>
function CopyId(num) {
var txt = document.getElementById("<%= result.ClientID%>").value;
txt = num;
document.getElementById("<%= result.ClientID%>").value = txt;
}
</script>
很抱歉,如果我错过了什么或者是缺乏信息的。任何帮助非常感谢。
问题很明显'result.Value'不是整数。这是填充在哪里? –
原始来自sql server的数字为6位数字,它是表中的“id”列,如果我正确理解您的问题。我可以看到,result.value不是一个整数,但我似乎无法将其转换为一个.. – BarryWhite
对不起,这个问题并不完美,但为什么downvote?很明显地说,我是新的,阅读问题的规则,并确保我把所有东西。 请解释唐纳? – BarryWhite