请有人帮我，我一直收到这个错误，它告诉我它的格式不正确，但我把它列为整数。如果你能告诉我我是个白痴，你将成为我真正的英雄。我肯定感谢任何人的帮助，是的，我刚刚开始在 asp.net 中有所帮助，所以请原谅我。
该页面是一项从客户 ID 获取事件的调查。它使用 sqlconnection 并且一直很好，直到我点击提交按钮然后出错。
这是我不断收到的错误代码，我想我只是没有看到它。我不明白为什么它会导致这个错误，我认为这将是所选值的问题。对于它的价值，我在它之前添加了 if 语句，希望这是问题，但显然不是。
Input string was not in a correct format.
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.
FormatException: Input string was not in a correct format.
Source Error:
Line 56: s.CustomerID = Convert.ToInt32(txtCustomerID.Text);
Line 57: if (lstIncident.SelectedIndex > -1)
Line 58: s.IncidentID = Convert.ToInt32(lstIncident.SelectedValue);
Line 59: if (rblResponse.SelectedIndex != -1)
Line 60: {
页面代码背后
public partial class CustomerSurvey : System.Web.UI.Page
{
private DataView IncidentsTable;
protected void Page_Load(object sender, EventArgs e)
{
txtCustomerID.Focus();
}
protected void btnGetIncidents_Click(object sender, EventArgs e)
{
IncidentsTable = (DataView)SqlDataSource1.Select(DataSourceSelectArguments.Empty);
IncidentsTable.RowFilter = "CustomerID = " + Convert.ToInt32(txtCustomerID.Text) + " AND DateClosed is Not Null";
if (IncidentsTable.Count > 0)
{
this.DisplayIncidents();
this.Enable(true);
lstIncident.Focus();
}
else
{
lblIncidentCount.Text = "I'm sorry there are no incidents that can be surveyed at this time.";
this.Enable(false);
}
}
private void DisplayIncidents()
{
lstIncident.Items.Add(new ListItem("--Select an Incident--"));
for (int j = 0; j < IncidentsTable.Count; j++)
{
DataRowView row = IncidentsTable[j];
Incident i = new Incident();
i.IncidentID = Convert.ToInt32(row["IncidentID"]);
i.ProductCode = row["ProductCode"].ToString();
i.DateClosed = Convert.ToDateTime(row["DateClosed"]);
i.Title = row["Title"].ToString();
lstIncident.Items.Add(i.CustomerIncidentDisplay());
}
lstIncident.SelectedIndex = 0;
lblIncidentCount.Text = "";
}
protected void btnSubmit_Click(object sender, EventArgs e)
{
if (Page.IsValid)
{
Survey s = new Survey();
s.CustomerID = Convert.ToInt32(txtCustomerID.Text);
if (lstIncident.SelectedIndex > -1)
s.IncidentID = Convert.ToInt32(lstIncident.SelectedValue);
if (rblResponse.SelectedIndex != -1)
{
s.ResponseTime = Convert.ToInt32(rblResponse.SelectedValue);
}
if (rblTechEfficiency.SelectedIndex != -1)
{
s.TechEfficiency = Convert.ToInt32(rblTechEfficiency.SelectedValue);
}
if (rblProblemResolution.SelectedIndex != -1)
{
s.Resolution = Convert.ToInt32(rblProblemResolution.SelectedValue);
}
s.Comments = txtComments.Text;
if (ckbContactMe.Checked)
{
s.Contact = true;
if (rdoContactEmail.Checked)
{
s.ContactBy = "Email";
}
else
{
s.ContactBy = "Phone";
}
Session.Add("Contact", true);
}
else
{
s.Contact = false;
Session.Add("Contact", false);
}
Response.Redirect("SurveyComplete.aspx");
}
}
private void Enable(bool e)
{
lstIncident.Enabled = e;
lblIncidents.Enabled = e;
lblResponse.Enabled = e;
lblProblemResolution.Enabled = e;
lblTechEfficiency.Enabled = e;
lblComments.Enabled = e;
rdoContactEmail.Enabled = e;
rdoContactPhone.Enabled = e;
rblProblemResolution.Enabled = e;
rblResponse.Enabled = e;
rblTechEfficiency.Enabled = e;
lblContact.Enabled = e;
txtComments.Enabled = e;
ckbContactMe.Enabled = e;
btnSubmit.Enabled = e;
}
}
这是我的班级，名为 Incident
public class Incident
{
public int IncidentID { get; set; }
public int CustomerID { get; set; }
public string ProductCode { get; set; }
public int TechID { get; set; }
public string DateOpened { get; set; }
public DateTime DateClosed { get; set; }
public string Title { get; set; }
public string Description { get; set; }
public string CustomerIncidentDisplay()
{
return "Incident for product " + ProductCode + " closed " + DateClosed.ToShortDateString() +
" (" + Title + ")";
}
}
public Incident()
{
}
这是来自母版页，但这里是页面
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<label>Enter your customer ID:</label>
<asp:TextBox ID="txtCustomerID" runat="server" Width="183px"></asp:TextBox>
<asp:Button ID="btnGetIncidents" runat="server" Text="Get Incidents" OnClick="btnGetIncidents_Click" ValidationGroup="CustomerID" />
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="txtCustomerID" ErrorMessage="You must enter a customer ID" ForeColor="Red" ValidationGroup="CustomerID" Display="Dynamic"></asp:RequiredFieldValidator>
<asp:CompareValidator ID="CompareValidator1" runat="server" ControlToValidate="txtCustomerID" ErrorMessage="Customer ID must be a positive whole number" ForeColor="Red" Operator="DataTypeCheck" Type="Integer" ValidationGroup="CustomerID" Display="Dynamic"></asp:CompareValidator>
<br />
<asp:Label ID="lblIncidentCount" runat="server" ForeColor="Red"></asp:Label>
<br />
<asp:ListBox ID="lstIncident" runat="server" Width="622px" Enabled="False" AutoPostBack="True"></asp:ListBox>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:TechSupportConnectionString %>" SelectCommand="SELECT [IncidentID], [CustomerID], [ProductCode], [TechID], [DateOpened], [DateClosed], [Title] FROM [Incidents] ORDER BY [DateClosed]"></asp:SqlDataSource>
<asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ControlToValidate="lstIncident" ErrorMessage="You must select an incident" ForeColor="Red" ValidationGroup="Incidents" Display="Dynamic" ></asp:RequiredFieldValidator>
<br />
<asp:Label ID="lblIncidents" runat="server" Text="Please rate this incident by the following categories: " Enabled="False"></asp:Label><br />
<table id="tblIncidents">
<tr>
<td> <asp:Label ID="lblResponse" runat="server" Text="Response Time:" Enabled="False"></asp:Label></td>
<td><asp:RadioButtonList ID="rblResponse" runat="server" Font-Names="Arial" Font-Size="Small" RepeatDirection="Horizontal" Enabled="False">
<asp:ListItem Value="1">Not Satisfied</asp:ListItem>
<asp:ListItem Value="2">Somewhat Satisfied</asp:ListItem>
<asp:ListItem Value="3">Satisfied</asp:ListItem>
<asp:ListItem Value="4">Completely Satisfied</asp:ListItem>
</asp:RadioButtonList></td>
</tr>
<tr>
<td><asp:Label ID="lblTechEfficiency" runat="server" Text="Technician Efficiency:" Enabled="False"></asp:Label></td>
<td><asp:RadioButtonList ID="rblTechEfficiency" runat="server" RepeatDirection="Horizontal" Font-Names="Arial" Font-Size="Small" Enabled="False">
<asp:ListItem Value="1">Not Satisfied</asp:ListItem>
<asp:ListItem Value="2">Somewhat Satisfied</asp:ListItem>
<asp:ListItem Value="3">Satisfied</asp:ListItem>
<asp:ListItem Value="4">Completely Satisfied</asp:ListItem>
</asp:RadioButtonList></td>
</tr>
<tr>
<td><asp:Label ID="lblProblemResolution" runat="server" Text="Problem Resolution:" Enabled="False"></asp:Label></td>
<td><asp:RadioButtonList ID="rblProblemResolution" runat="server" RepeatDirection="Horizontal" Font-Names="Arial" Font-Size="Small" Enabled="False">
<asp:ListItem Value="1">Not Satisfied</asp:ListItem>
<asp:ListItem Value="2">Somewhat Satisfied</asp:ListItem>
<asp:ListItem Value="3">Satisfied</asp:ListItem>
<asp:ListItem Value="4">Completely Satisfied</asp:ListItem>
</asp:RadioButtonList></td>
</tr>
</table>
<asp:Label ID="lblComments" runat="server" Text="Additional Comments:" Enabled="False"></asp:Label>
<asp:TextBox ID="txtComments" runat="server" Height="81px" Width="551px" Enabled="False" Rows="4" TextMode="MultiLine"></asp:TextBox>
<br />
<br />
<asp:CheckBox ID="ckbContactMe" runat="server" Enabled="False" />
<asp:Label ID="lblContact" runat="server" Text="Please contact me to discuss this incident" Enabled="False"></asp:Label>
<br />
<asp:RadioButton ID="rdoContactEmail" runat="server" GroupName="ContactBy" Enabled="False" Text="Contact By Email" /><br />
<asp:RadioButton ID="rdoContactPhone" runat="server" Enabled="False" GroupName="ContactBy" Text="Contact By Phone" />
<br />
<br />
<asp:Button ID="btnSubmit" runat="server" OnClick="btnSubmit_Click" Text="Submit" Enabled="False" ValidationGroup="Incidents" Width="123px" />
</asp:Content>