- c - 在位数组中找到第一个零
- linux - Unix 显示有关匹配两种模式之一的文件的信息
- 正则表达式替换多个文件
- linux - 隐藏来自 xtrace 的命令
在具有两个数据绑定(bind)下拉列表的详细信息 View 上按下提交按钮后,我一直收到此错误。我不在代码中的任何地方使用 Eval 或 XPath,但经常使用 Bind。
Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control.
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 where it originated in the code.
Exception Details: System.InvalidOperationException: Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control.
Source Error:
[No relevant source lines]
Source File: c:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\9b1781c5\212dfe37\App_Web_newrequestform.aspx.1420f3bc.0khdma4p.0.cs Line: 0
Stack Trace:
[InvalidOperationException: Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control.]
System.Web.UI.Page.GetDataItem() +2802118
ASP.authorized_leaverequest_newrequestform_aspx.__DataBinding__control69(Object sender, EventArgs e) in c:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\9b1781c5\212dfe37\App_Web_newrequestform.aspx.1420f3bc.0khdma4p.0.cs:0
System.Web.UI.Control.OnDataBinding(EventArgs e) +91
System.Web.UI.WebControls.ListControl.OnDataBinding(EventArgs e) +14
System.Web.UI.WebControls.ListControl.PerformSelect() +34
System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +74
System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound() +66
System.Web.UI.WebControls.ListControl.OnPreRender(EventArgs e) +29
System.Web.UI.Control.PreRenderRecursiveInternal() +103
System.Web.UI.Control.PreRenderRecursiveInternal() +175
System.Web.UI.Control.PreRenderRecursiveInternal() +175
System.Web.UI.Control.PreRenderRecursiveInternal() +175
System.Web.UI.Control.PreRenderRecursiveInternal() +175
System.Web.UI.Control.PreRenderRecursiveInternal() +175
System.Web.UI.Control.PreRenderRecursiveInternal() +175
System.Web.UI.Control.PreRenderRecursiveInternal() +175
System.Web.UI.Control.PreRenderRecursiveInternal() +175
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2496
反汇编指向---> mov dword ptr [ebp-58h],eax
我已经搜索这个错误好几天了,但没有成功。我已经试过了 WEBSWAPP以及搜索了很多论坛。请帮忙。
我正在尝试使用下拉列表让用户选择值来填充数据库。我表单中的每个字段都是一个模板并且是数据绑定(bind)的。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Configuration;
using System.Data.SqlClient;
using System.Data;
using System.Web.Services;
using System.Web.Services.Protocols;
using AjaxControlToolkit;
namespace TimeAndAttendanceUI.Authorized.LeaveRequest
{
public partial class newRequestForm : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
DetailsView1.DataBind();
}
}
protected void DetailsView1_DataBound(object sender, EventArgs e)
{
TextBox employeeID = (TextBox)(DetailsView1.FindControl("TextBox17"));
DropDownList approverID = (DropDownList)(DetailsView1.FindControl("DropDownList4"));
if (DetailsView1.CurrentMode == DetailsViewMode.Insert)
{
var CurrUser = "";
Account.Login uusr = new Account.Login();
CurrUser = uusr.User.Identity.Name.ToString().ToUpper();
employeeID.Text = CurrUser.Substring(3, 3);
string supusrid = "";
DataHandler.DataHandler Dt = new DataHandler.DataHandler();
supusrid = Dt.SelectRequestApproverForm(supusrid);
approverID.SelectedValue = supusrid;
}
}
protected void DropDownList6_SelectedIndexChanged(object sender, EventArgs e)
{
DropDownList lvtype = (DropDownList)(DetailsView1.FindControl("DropDownList6"));
string selectedValue = lvtype.SelectedValue.ToString().ToUpper();
if (selectedValue == "4 " || selectedValue == "1F")
{
DropDownList lvreason = (DropDownList)(DetailsView1.FindControl("DropDownList5"));
SqlDataSource1.SelectParameters["LEAVECODE"].DefaultValue = selectedValue;
lvreason.Visible = true;
}
}
protected void Button2_Click(object sender, EventArgs e)
{
DetailsView1.DataSource = null;
DetailsView1.DataBind();
}
protected void Button2_Click1(object sender, EventArgs e)
{
Button3.Visible = true;
}
protected void Button3_Click(object sender, EventArgs e)
{
DetailsView1.Visible = true;
DetailsView1.ChangeMode(DetailsViewMode.Insert);
if (DetailsView1.CurrentMode.Equals(DetailsViewMode.Insert))
{
Button3.Visible = false;
Button4.Visible = false;
DetailsView2.Visible = true;
DetailsView3.Visible = true;
}
}
}
}
抱歉用代码轰炸。
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
<asp:Label ID="HoursLabel" runat="server"></asp:Label>
<br />
<table class="style1">
<tr>
<td class="style2" colspan="2">
<asp:DetailsView ID="DetailsView1" runat="server"
DataSourceID="ObjectDataSource1" DataKeyNames="bwrequestid"
Height="29px" Width="928px" AutoGenerateRows="False" CellPadding="4" ForeColor="#333333"
GridLines="None" Style="margin-right: 0px; text-align: left; margin-top: 0px;"
ondatabound="DetailsView1_DataBound"
oniteminserted="DetailsView1_ItemInserted"
onitemcommand="DetailsView1_ItemCommand" >
<AlternatingRowStyle BackColor="White" ForeColor="#284775" />
<CommandRowStyle BackColor="#E2DED6" Font-Bold="True" />
<EditRowStyle BackColor="#999999" />
<FieldHeaderStyle BackColor="#E9ECF1" Font-Bold="True" Width="180px" />
<Fields>
<asp:TemplateField AccessibleHeaderText="Request ID" HeaderText="Leave Request ID" Visible="False">
<EditItemTemplate>
<asp:Label ID="Label18" runat="server" Text='<%# Bind("bwrequestid") %>'></asp:Label>
<asp:TextBox ID="TextBox169" runat="server" Text='<%# bind("bwrequestid") %>'></asp:TextBox>
</EditItemTemplate>
<InsertItemTemplate>
<asp:Label ID="Label19" runat="server" Text='<%# Bind("bwrequestid") %>'></asp:Label>
<asp:TextBox ID="TextBox165" runat="server" Text='<%# bind("bwrequestid") %>'></asp:TextBox>
</InsertItemTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Bind("bwrequestid") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField AccessibleHeaderText="Employee ID" HeaderText="Employee ID" >
<EditItemTemplate>
<asp:Label ID="Label20" runat="server" Text='<%# bind("emppid") %>'></asp:Label>
</EditItemTemplate>
<InsertItemTemplate>
<asp:Label ID="Label21" runat="server" Text='<%# bind("emppid") %>'></asp:Label>
<asp:TextBox ID="TextBox17" runat="server" Text='<%# bind("emppid") %>'
></asp:TextBox>
</InsertItemTemplate>
<ItemTemplate>
<asp:Label ID="Label2" runat="server" Text='<%# bind("emppid") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField AccessibleHeaderText="Approver ID" HeaderText="Approver ID">
<EditItemTemplate>
<asp:TextBox ID="TextBox3" runat="server" Text='<%# Bind("approverid") %>' Height="21px"
Width="68px"></asp:TextBox>
</EditItemTemplate>
<InsertItemTemplate>
<asp:DropDownList ID="DropDownList4" runat="server" style="text-transform:uppercase;" DataSourceID="SqlDataSourceApprover"
DataTextField="APPROVNAME" DataValueField="APPROVERID"
SelectedValue='<%# Bind("approverid") %>'>
</asp:DropDownList>
</InsertItemTemplate>
<ItemTemplate>
<asp:Label ID="Label3" runat="server" Text='<%# Bind("approverid") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Leave Type" SortExpression="reqleavecode">
<EditItemTemplate>
<asp:DropDownList ID="DropDownList7" runat="server" AppendDataBoundItems="True"
AutoPostBack="True" DataSourceID="SQLLEAVECODE"
style="text-transform:uppercase;" DataTextField="LEAVETYPE"
DataValueField="LEAVECODE"
onselectedindexchanged="DropDownList6_SelectedIndexChanged"
SelectedValue='<%# BIND("REQLEAVECODE") %>' ViewStateMode="Enabled"
Width="165px" Height="19px">
<asp:ListItem></asp:ListItem>
</asp:DropDownList>
</EditItemTemplate>
<InsertItemTemplate>
<asp:DropDownList ID="DropDownList6" runat="server" DataSourceID="SQLLEAVECODE"
DataTextField="LEAVETYPE" style="text-transform:uppercase;" DataValueField="LEAVECODE"
onselectedindexchanged="DropDownList6_SelectedIndexChanged"
AppendDataBoundItems="True" ViewStateMode="Enabled" AutoPostBack="True"
SelectedValue='<%# BIND("REQLEAVECODE") %>' Width="166px" Height="19px"><asp:ListItem></asp:ListItem>
</asp:DropDownList>
<br />
<asp:Label ID="Label26" runat="server" Text='<%# bind("reqleavecode") %>'></asp:Label>
</InsertItemTemplate>
<ItemTemplate>
<asp:Label ID="Label9" runat="server" Text='<%# Bind("reqleavecode") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField AccessibleHeaderText="Leave Type" HeaderText="Leave Reason"
Visible="False">
<ItemTemplate>
<asp:Label ID="Label4" runat="server" Text='<%# Bind("leavetype") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="TextBox4" runat="server" Text='<%# Bind("leavetype") %>' Height="21px"
Width="43px"></asp:TextBox>
</EditItemTemplate>
<InsertItemTemplate>
<asp:DropDownList ID="DropDownList5" runat="server" AppendDataBoundItems="True"
AutoPostBack="True" DataSourceID="SqlDataSource1" DataTextField="REASON"
DataValueField="REASON" Height="19px"
onselectedindexchanged="DropDownList5_SelectedIndexChanged1"
SelectedValue='<%# Bind("leavetype") %>' Width="163px">
</asp:DropDownList>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1Reason" runat="server"
ControlToValidate="DropDownList5" ErrorMessage="*Leave Reason Required"
ForeColor="Red"></asp:RequiredFieldValidator>
</InsertItemTemplate>
</asp:TemplateField>
<asp:TemplateField AccessibleHeaderText="start date" HeaderText="Leave Date">
<EditItemTemplate>
<asp:TextBox ID="TextBox5" runat="server"
Text='<%# Bind("lstdate", "{0:MM/dd/yyyy}") %>' Height="21px"
Width="72px"></asp:TextBox>
<asp:CalendarExtender ID="TextBox5_CalendarExtender" runat="server" Enabled="True" TargetControlID="TextBox5">
</asp:CalendarExtender>
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBox ID="TextBox5" runat="server"
Text='<%# Bind("lstdate", "{0:MM/dd/yyyy}") %>' Height="21px"
Width="67px"></asp:TextBox>
<asp:CalendarExtender ID="TextBox5_CalendarExtender" runat="server" Enabled="True"
TargetControlID="TextBox5">
</asp:CalendarExtender>
<asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server"
ControlToValidate="TextBox5" ErrorMessage="*Leave Date Required"
ForeColor="Red"></asp:RequiredFieldValidator>
<br />
<asp:CompareValidator ID="CompareValidator18" runat="server"
ControlToCompare="TextBox7" ControlToValidate="TextBox5"
ErrorMessage="Leave date cannot be after start date" ForeColor="Red"
Operator="LessThanEqual" ToolTip="Must choose start date before end date"></asp:CompareValidator>
</InsertItemTemplate>
<ItemTemplate>
<asp:Label ID="Label7" runat="server" Text='<%# Bind("lenddate") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField AccessibleHeaderText="lenddate" HeaderText="Return Date">
<EditItemTemplate>
<asp:TextBox ID="TextBox7" runat="server"
Text='<%# Bind("lenddate", "{0:MM/dd/yyyy}") %>' Height="21px" Width="67px"></asp:TextBox>
<asp:CalendarExtender ID="TextBox7_CalendarExtender" runat="server" Enabled="True"
TargetControlID="TextBox7">
</asp:CalendarExtender>
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBox ID="TextBox7" runat="server"
Text='<%# Bind("lenddate", "{0:MM/dd/yyyy}") %>' Height="21px"
Width="67px"></asp:TextBox>
<asp:CalendarExtender ID="TextBox7_CalendarExtender" runat="server" Enabled="True" TargetControlID="TextBox7">
</asp:CalendarExtender>
<asp:CompareValidator ID="CompareValidator1" runat="server"
ControlToCompare="TextBox5" ControlToValidate="TextBox7"
ErrorMessage="Return date cannot be before start date" ForeColor="Red"
Operator="GreaterThanEqual"></asp:CompareValidator>
</InsertItemTemplate>
<ItemTemplate>
<asp:Label ID="Label15" runat="server" Text='<%# Bind("lsttime") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField AccessibleHeaderText="Leave Time" HeaderText="Leave Time">
<EditItemTemplate>
<asp:TextBox ID="TextBox15" runat="server" Height="21px"
Text='<%# Bind("lsttime") %>' ToolTip="Type 'A' or 'P' to switch AM/PM"
Width="85px"></asp:TextBox>
<asp:MaskedEditExtender ID="TextBox15_MaskedEditExtender" runat="server"
AcceptAMPM="True" CultureAMPMPlaceholder="" CultureCurrencySymbolPlaceholder=""
CultureDateFormat="" CultureDatePlaceholder="" CultureDecimalPlaceholder=""
CultureThousandsPlaceholder="" CultureTimePlaceholder="" Enabled="True"
ErrorTooltipEnabled="True" Mask="99:99" MaskType="Time"
TargetControlID="TextBox15" />
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBox ID="TextBox15" runat="server" Text='<%# Bind("lsttime") %>' Width="85px"
Height="22px" ToolTip="Type 'A' or 'P' to switch AM/PM"></asp:TextBox>
</InsertItemTemplate>
<ItemTemplate>
<asp:Label ID="Label8" runat="server" Text='<%# Bind("lendtime") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField AccessibleHeaderText="Return Time" HeaderText="Return Time">
<EditItemTemplate>
<asp:TextBox ID="TextBox8" runat="server" Text='<%# Bind("lendtime") %>' Width="85px"></asp:TextBox>
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBox ID="TextBox8" runat="server" Text='<%# Bind("lsttime") %>' Width="85px"
Height="22px" ToolTip="Type 'A' or 'P' to switch AM/PM"></asp:TextBox>
<asp:MaskedEditExtender ID="TextBox8_MaskedEditExtender" runat="server"
AcceptAMPM="True" CultureAMPMPlaceholder="" CultureCurrencySymbolPlaceholder=""
CultureDateFormat="" CultureDatePlaceholder="" CultureDecimalPlaceholder=""
CultureThousandsPlaceholder="" CultureTimePlaceholder="" Enabled="True"
ErrorTooltipEnabled="True" Mask="99:99" MaskType="Time"
TargetControlID="TextBox8" />
</InsertItemTemplate>
<ItemTemplate>
<asp:Label ID="Label10" runat="server" Text='<%# Bind("standby") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField AccessibleHeaderText="Standby" HeaderText="On Standby">
<EditItemTemplate>
<asp:TextBox ID="TextBox10" runat="server" Text='<%# Bind("standby") %>' MaxLength="1" Width="21px"></asp:TextBox>
</EditItemTemplate>
<InsertItemTemplate>
<asp:DropDownList ID="DropDownList1" runat="server" DataSourceID="SqlDataSource10"
DataTextField=""Y/N"" DataValueField=""Y/N"" SelectedValue='<%# BIND("standby") %>'>
</asp:DropDownList>
</InsertItemTemplate>
<ItemTemplate>
<asp:Label ID="Label12" runat="server" Text='<%# Bind("rsndecline") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField AccessibleHeaderText="Reason Decline"
HeaderText="Request Decline Reason" InsertVisible="False">
<EditItemTemplate>
<asp:TextBox ID="TextBox12" style="text-transform:uppercase;" runat="server" Text='<%# Bind("rsndecline") %>'
Visible="False"></asp:TextBox>
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBox ID="TextBox12" runat="server" Text='<%# Bind("rsndecline") %>'
Visible="False"></asp:TextBox>
</InsertItemTemplate>
<ItemTemplate>
<asp:Label ID="Label13" runat="server" Text='<%# Bind("status") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField AccessibleHeaderText="Status" HeaderText="Request Status" InsertVisible="False">
<EditItemTemplate>
<asp:TextBox ID="TextBox13" runat="server" Text='<%# Bind("status") %>'></asp:TextBox>
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBox ID="TextBox13" runat="server" Text='<%# Bind("status") %>' Visible="False"></asp:TextBox>
</InsertItemTemplate>
<ItemTemplate>
<asp:Label ID="Label14" runat="server" Text='<%# Bind("empremarks") %>'
ToolTip="Additional information pertaining to leave request"></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField AccessibleHeaderText="empremarks" HeaderText="Leave Request Remarks">
<EditItemTemplate>
<asp:TextBox ID="TextBox14" runat="server" style="text-transform:uppercase;" Text='<%# Bind("empremarks") %>'
TextMode="MultiLine" Height="50px" Width="449px"
ToolTip="Additional information pertaining to leave request"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="server"
ControlToValidate="TextBox14" Display="Dynamic" Enabled="False"
ErrorMessage="*Leave Remarks Required for "Other" selection"
ForeColor="Red"></asp:RequiredFieldValidator>
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBox ID="TextBox14" runat="server" style="text-transform:uppercase;" Text='<%# Bind("empremarks") %>'
TextMode="MultiLine" Height="47px" Width="452px"
ToolTip="Additional information pertaining to leave request."></asp:TextBox>
</InsertItemTemplate>
<ItemTemplate>
<asp:Button ID="Button1" runat="server" CausesValidation="False"
CommandName="Edit" Height="21px" Text="Edit" Width="65px" />
<asp:Button ID="Button2" runat="server" CausesValidation="False"
CommandName="New" Height="21px" Text="New" Width="65px" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField ShowHeader="False">
<EditItemTemplate>
<asp:Button ID="Button1" runat="server" CausesValidation="True"
CommandName="Update" Text="Update" />
<asp:Button ID="Button2" runat="server" CausesValidation="False"
CommandName="Cancel" Text="Cancel" />
</EditItemTemplate>
<InsertItemTemplate>
<asp:Button ID="Button1" runat="server" CommandName="Insert"
Text="Submit Request" />
<asp:Button ID="Button2" runat="server" CausesValidation="False"
CommandName="Cancel" Height="21px" onclick="Button2_Click1" Text="Cancel" />
</InsertItemTemplate>
<ItemTemplate>
<asp:Label ID="Label5" runat="server" Text='<%# Bind("lstdate") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Fields>
</asp:DetailsView>
</td>
</tr>
</table>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionStringEvent %>"
ProviderName="<%$ ConnectionStrings:ConnectionStringEvent.ProviderName %>"
SelectCommand="SELECT REASON, LEAVECODE FROM BWLEAVRSN">
<SelectParameters>
<asp:Parameter Name="LEAVECODE" Type="String" />
</SelectParameters>
</asp:SqlDataSource>
<asp:SqlDataSource ID="SQLLEAVECODE" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionStringEvent %>"
ProviderName="<%$ ConnectionStrings:ConnectionStringEvent.ProviderName %>"
SelectCommand="SELECT LEAVETYPE, LEAVECODE FROM BWLVTYPE ORDER BY LEAVECODE">
</asp:SqlDataSource>
<asp:SqlDataSource ID="SqlDataSourceApprover" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionStringEvent %>"
ProviderName="<%$ ConnectionStrings:ConnectionStringEvent.ProviderName %>"
SelectCommand="SELECT APPROVERID, APPROVNAME FROM BWAPPROVER ORDER BY APPROVERID">
</asp:SqlDataSource>
<asp:SqlDataSource ID="SqlDataSource10" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionStringEvent %>"
ProviderName="<%$ ConnectionStrings:ConnectionStringEvent.ProviderName %>"
SelectCommand="SELECT * FROM BWYNSELECT ORDER BY ALPH"></asp:SqlDataSource>
<asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">
</asp:ToolkitScriptManager>
<asp:Label ID="Label27" runat="server" ></asp:Label>
</asp:Content>
最佳答案
我注意到的一件事是第一个 丢失了,我怀疑它只是从复制和粘贴中丢失了。我不认为它会编译,所以我猜你的代码中不存在。但是,值得检查。
您的错误可能是由于 TemplateField
中有 SqlDataSource
引起的。将它们移到 DetailsView
之外并试一试。
之前
<asp:DetailsView ....
....
<InsertItemTemplate>
<asp:DropDownList ID="DropDownList4" runat="server" style="text-transform:uppercase;" DataSourceID="SqlDataSourceApprover"
DataTextField="APPROVNAME" DataValueField="APPROVERID"
SelectedValue='<%# Bind("approverid") %>'>
</asp:DropDownList>
<asp:SqlDataSource ID="SqlDataSourceApprover" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionStringEvent %>"
ProviderName="<%$ ConnectionStrings:ConnectionStringEvent.ProviderName %>"
SelectCommand="SELECT APPROVERID, APPROVNAME FROM BWAPPROVER ORDER BY APPROVERID">
</asp:SqlDataSource>
</InsertItemTemplate>
....
<EditItemTemplate>
<asp:DropDownList ID="DropDownList7" runat="server" AppendDataBoundItems="True"
AutoPostBack="True" DataSourceID="SQLLEAVECODE"
style="text-transform:uppercase;" DataTextField="LEAVETYPE"
DataValueField="LEAVECODE"
onselectedindexchanged="DropDownList6_SelectedIndexChanged"
SelectedValue='<%# BIND("REQLEAVECODE") %>' ViewStateMode="Enabled"
Width="165px" Height="19px">
<asp:ListItem></asp:ListItem>
</asp:DropDownList>
</EditItemTemplate>
<InsertItemTemplate>
<asp:DropDownList ID="DropDownList6" runat="server" DataSourceID="SQLLEAVECODE"
DataTextField="LEAVETYPE" style="text-transform:uppercase;" DataValueField="LEAVECODE"
onselectedindexchanged="DropDownList6_SelectedIndexChanged"
AppendDataBoundItems="True" ViewStateMode="Enabled" AutoPostBack="True"
SelectedValue='<%# BIND("REQLEAVECODE") %>' Width="166px" Height="19px"><asp:ListItem></asp:ListItem>
</asp:DropDownList>
<asp:SqlDataSource ID="SQLLEAVECODE" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionStringEvent %>"
ProviderName="<%$ ConnectionStrings:ConnectionStringEvent.ProviderName %>"
SelectCommand="SELECT LEAVETYPE, LEAVECODE FROM BWLVTYPE ORDER BY LEAVECODE">
</asp:SqlDataSource>
<asp:DropDownList ID="DropDownList5" runat="server" AppendDataBoundItems="True"
AutoPostBack="True" DataSourceID="SqlDataSource1" DataTextField="REASON"
DataValueField="REASON" Height="19px"
onselectedindexchanged="DropDownList5_SelectedIndexChanged1"
SelectedValue='<%# Bind("leavetype") %>' Visible="False" Width="163px">
</asp:DropDownList>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionStringEvent %>"
ProviderName="<%$ ConnectionStrings:ConnectionStringEvent.ProviderName %>"
SelectCommand="SELECT REASON, LEAVECODE FROM BWLEAVRSN">
<SelectParameters>
<asp:ControlParameter ControlID="Label27" Name="LEAVECODE" PropertyName="Text"
Type="String" />
</SelectParameters>
</asp:SqlDataSource>
....
</asp:DetailsView>
之后
<asp:DetailsView ....
....
<InsertItemTemplate>
<asp:DropDownList ID="DropDownList4" runat="server" style="text-transform:uppercase;" DataSourceID="SqlDataSourceApprover"
DataTextField="APPROVNAME" DataValueField="APPROVERID"
SelectedValue='<%# Bind("approverid") %>'>
</asp:DropDownList>
</InsertItemTemplate>
....
<EditItemTemplate>
<asp:DropDownList ID="DropDownList7" runat="server" AppendDataBoundItems="True"
AutoPostBack="True" DataSourceID="SQLLEAVECODE"
style="text-transform:uppercase;" DataTextField="LEAVETYPE"
DataValueField="LEAVECODE"
onselectedindexchanged="DropDownList6_SelectedIndexChanged"
SelectedValue='<%# BIND("REQLEAVECODE") %>' ViewStateMode="Enabled"
Width="165px" Height="19px">
<asp:ListItem></asp:ListItem>
</asp:DropDownList>
</EditItemTemplate>
<InsertItemTemplate>
<asp:DropDownList ID="DropDownList6" runat="server" DataSourceID="SQLLEAVECODE"
DataTextField="LEAVETYPE" style="text-transform:uppercase;" DataValueField="LEAVECODE"
onselectedindexchanged="DropDownList6_SelectedIndexChanged"
AppendDataBoundItems="True" ViewStateMode="Enabled" AutoPostBack="True"
SelectedValue='<%# BIND("REQLEAVECODE") %>' Width="166px" Height="19px"><asp:ListItem></asp:ListItem>
</asp:DropDownList>
<asp:DropDownList ID="DropDownList5" runat="server" AppendDataBoundItems="True"
AutoPostBack="True" DataSourceID="SqlDataSource1" DataTextField="REASON"
DataValueField="REASON" Height="19px"
onselectedindexchanged="DropDownList5_SelectedIndexChanged1"
SelectedValue='<%# Bind("leavetype") %>' Visible="False" Width="163px">
</asp:DropDownList>
....
</asp:DetailsView>
<asp:SqlDataSource ID="SqlDataSourceApprover" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionStringEvent %>"
ProviderName="<%$ ConnectionStrings:ConnectionStringEvent.ProviderName %>"
SelectCommand="SELECT APPROVERID, APPROVNAME FROM BWAPPROVER ORDER BY APPROVERID">
</asp:SqlDataSource>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionStringEvent %>"
ProviderName="<%$ ConnectionStrings:ConnectionStringEvent.ProviderName %>"
SelectCommand="SELECT REASON, LEAVECODE FROM BWLEAVRSN">
<SelectParameters>
<asp:ControlParameter ControlID="Label27" Name="LEAVECODE" PropertyName="Text"
Type="String" />
</SelectParameters>
</asp:SqlDataSource>
<asp:SqlDataSource ID="SQLLEAVECODE" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionStringEvent %>"
ProviderName="<%$ ConnectionStrings:ConnectionStringEvent.ProviderName %>"
SelectCommand="SELECT LEAVETYPE, LEAVECODE FROM BWLVTYPE ORDER BY LEAVECODE">
</asp:SqlDataSource>
直接为 DropDownList5 更改 SqlDataSource
您的错误现在可能是由于 SqlDataSource1 试图从 DetailsView
内部访问 Label
引起的。这不可能真的发生,所以直接改变参数。
改变你的参数类型
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionStringEvent %>"
ProviderName="<%$ ConnectionStrings:ConnectionStringEvent.ProviderName %>"
SelectCommand="SELECT REASON, LEAVECODE FROM BWLEAVRSN">
<SelectParameters>
<asp:Parameter Name="LEAVECODE" Type="String" />
</SelectParameters>
</asp:SqlDataSource>
改变参数
protected void DropDownList6_SelectedIndexChanged(object sender, EventArgs e)
{
DropDownList lvtype = (DropDownList)(DetailsView1.FindControl("DropDownList6"));
string selectedValue = lvtype.SelectedValue.ToString().ToUpper();
if (selectedValue == "4 " || selectedValue == "1F")
{
DropDownList lvreason = (DropDownList)(DetailsView1.FindControl("DropDownList5"));
SqlDataSource1.SelectParameters["LEAVECODE"].DefaultValue = selectedValue;
lvreason.Visible = true;
}
}
关于c# - 错误 - 数据绑定(bind)方法,例如 Eval()、XPath() 和 Bind(),我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/11971556/
我已经使用 vue-cli 两个星期了,直到今天一切正常。我在本地建立这个项目。 https://drive.google.com/open?id=0BwGw1zyyKjW7S3RYWXRaX24tQ
您好,我正在尝试使用 python 库 pytesseract 从图像中提取文本。请找到代码: from PIL import Image from pytesseract import image_
我的错误 /usr/bin/ld: errno: TLS definition in /lib/libc.so.6 section .tbss mismatches non-TLS reference
我已经训练了一个模型,我正在尝试使用 predict函数但它返回以下错误。 Error in contrasts<-(*tmp*, value = contr.funs[1 + isOF[nn]])
根据Microsoft DataConnectors的信息我想通过 this ODBC driver 创建一个从 PowerBi 到 PostgreSQL 的连接器使用直接查询。我重用了 Micros
我已经为 SoundManagement 创建了一个包,其中有一个扩展 MediaPlayer 的类。我希望全局控制这个变量。这是我的代码: package soundmanagement; impo
我在Heroku上部署了一个应用程序。我正在使用免费服务。 我经常收到以下错误消息。 PG::Error: ERROR: out of memory 如果刷新浏览器,就可以了。但是随后,它又随机发生
我正在运行 LAMP 服务器,这个 .htaccess 给我一个 500 错误。其作用是过滤关键字并重定向到相应的域名。 Options +FollowSymLinks RewriteEngine
我有两个驱动器 A 和 B。使用 python 脚本,我在“A”驱动器中创建一些文件,并运行 powerscript,该脚本以 1 秒的间隔将驱动器 A 中的所有文件复制到驱动器 B。 我在 powe
下面的函数一直返回这个错误信息。我认为可能是 double_precision 字段类型导致了这种情况,我尝试使用 CAST,但要么不是这样,要么我没有做对...帮助? 这是错误: ERROR: i
这个问题已经有答案了: Syntax error due to using a reserved word as a table or column name in MySQL (1 个回答) 已关闭
我的数据库有这个小问题。 我创建了一个表“articoli”,其中包含商品的品牌、型号和价格。 每篇文章都由一个 id (ID_ARTICOLO)` 定义,它是一个自动递增字段。 好吧,现在当我尝试插
我是新来的。我目前正在 DeVry 在线学习中级 C++ 编程。我们正在使用 C++ Primer Plus 这本书,到目前为止我一直做得很好。我的老师最近向我们扔了一个曲线球。我目前的任务是这样的:
这个问题在这里已经有了答案: What is an undefined reference/unresolved external symbol error and how do I fix it?
我的网站中有一段代码有问题;此错误仅发生在 Internet Explorer 7 中。 我没有在这里发布我所有的 HTML/CSS 标记,而是发布了网站的一个版本 here . 如您所见,我在列中有
如果尝试在 USB 设备上构建 node.js 应用程序时在我的树莓派上使用 npm 时遇到一些问题。 package.json 看起来像这样: { "name" : "node-todo",
在 Python 中,您有 None单例,在某些情况下表现得很奇怪: >>> a = None >>> type(a) >>> isinstance(a,None) Traceback (most
这是我的 build.gradle (Module:app) 文件: apply plugin: 'com.android.application' android { compileSdkV
我是 android 的新手,我的项目刚才编译和运行正常,但在我尝试实现抽屉导航后,它给了我这个错误 FAILURE: Build failed with an exception. What wen
谁能解释一下?我想我正在做一些非常愚蠢的事情,并且急切地等待着启蒙。 我得到这个输出: phpversion() == 7.2.25-1+0~20191128.32+debian8~1.gbp108
我是一名优秀的程序员,十分优秀!