输入字符串的格式不正确
在我的gridview中，我有一个页脚模板，其中有一个插入链接按钮，TextBox和DropDownList。在gridview中我有编辑，更新和删除选项，在页脚模板中，在ddl中我有来自另一个的值表格，如城市，国籍，高中等。当我点击“插入”按钮时出现此错误：输入字符串的格式不正确。我想我必须转换ddl中的值，因为在我的db中我使用查找向导。这是我的cs代码：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Text;
using System.Data;
using System.Data.OleDb;
namespace Admitere1.Controale
{
public partial class WebUserControl1 : System.Web.UI.UserControl
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void lbInsert_Click(Object sender, EventArgs e)
{
TextBox txtNume = (TextBox)GridView3.FooterRow.FindControl("txtNume");
TextBox txtPrenume = (TextBox)GridView3.FooterRow.FindControl("txtPrenume");
TextBox txtPTata = (TextBox)GridView3.FooterRow.FindControl("txtPTata");
DropDownList ddlSex = (DropDownList)GridView3.FooterRow.FindControl("ddlSex");
DropDownList ddlLN = (DropDownList)GridView3.FooterRow.FindControl("ddlLN");
DropDownList ddlLD = (DropDownList)GridView3.FooterRow.FindControl("ddlLD");
DropDownList ddlNationalitate = (DropDownList)GridView3.FooterRow.FindControl("ddlNationalitate");
TextBox txtCnp = (TextBox)GridView3.FooterRow.FindControl("txtCnp");
TextBox txtSerie = (TextBox)GridView3.FooterRow.FindControl("txtSerie");
TextBox txtNumar = (TextBox)GridView3.FooterRow.FindControl("txtNumar");
TextBox txtTelefon = (TextBox)GridView3.FooterRow.FindControl("txtTelefon");
TextBox txtEmail = (TextBox)GridView3.FooterRow.FindControl("txtEmail");
DropDownList ddlLiceu = (DropDownList)GridView3.FooterRow.FindControl("ddlLiceu");
DropDownList ddlSala = (DropDownList)GridView3.FooterRow.FindControl("ddlSala");
DropDownList ddlAdmis = (DropDownList)GridView3.FooterRow.FindControl("ddlAdmis");
DropDownList ddlUser = (DropDownList)GridView3.FooterRow.FindControl("ddlUser");
SqlDataSource1.InsertParameters["Nume"].DefaultValue = ((TextBox)GridView3.FooterRow.FindControl("txtNume")).Text;
SqlDataSource1.InsertParameters["Prenume"].DefaultValue = ((TextBox)GridView3.FooterRow.FindControl("txtPrenume")).Text;
SqlDataSource1.InsertParameters["prenumeTata"].DefaultValue = ((TextBox)GridView3.FooterRow.FindControl("txtPTata")).Text;
SqlDataSource1.InsertParameters["Sex"].DefaultValue = ((DropDownList)GridView3.FooterRow.FindControl("ddlSex")).SelectedValue;
SqlDataSource1.InsertParameters["LocalitateNastere"].DefaultValue = ((DropDownList)GridView3.FooterRow.FindControl("ddlLN")).SelectedValue;
SqlDataSource1.InsertParameters["LocalitateDomiciliu"].DefaultValue = ((DropDownList)GridView3.FooterRow.FindControl("ddlLD")).SelectedValue;
SqlDataSource1.InsertParameters["Nationalitate"].DefaultValue = ((DropDownList)GridView3.FooterRow.FindControl("ddlNationalitate")).SelectedValue; ;
SqlDataSource1.InsertParameters["Cnp"].DefaultValue = ((TextBox)GridView3.FooterRow.FindControl("txtCnp")).Text;
SqlDataSource1.InsertParameters["SerieCI"].DefaultValue = ((TextBox)GridView3.FooterRow.FindControl("txtSerie")).Text;
SqlDataSource1.InsertParameters["NumarCI"].DefaultValue = ((TextBox)GridView3.FooterRow.FindControl("txtNumar")).Text;
SqlDataSource1.InsertParameters["Telefon"].DefaultValue = ((TextBox)GridView3.FooterRow.FindControl("txtTelefon")).Text;
SqlDataSource1.InsertParameters["Email"].DefaultValue = ((TextBox)GridView3.FooterRow.FindControl("txtEmail")).Text;
// SqlDataSource1.InsertParameters["A2aFacultate"].DefaultValue = ((CheckBox)GridView3.FooterRow.FindControl("ckFac")).Text;
SqlDataSource1.InsertParameters["Liceu"].DefaultValue = ((DropDownList)GridView3.FooterRow.FindControl("ddlLiceu")).SelectedValue;
// SqlDataSource1.InsertParameters["Inmatriculat"].DefaultValue = ((CheckBox)GridView3.FooterRow.FindControl("ckInmatriculat")).Text;
// SqlDataSource1.InsertParameters["Inmatriculat"].DefaultValue = ((CheckBox)GridView3.FooterRow.FindControl("ckInmatriculat")).Text;
SqlDataSource1.InsertParameters["Sala"].DefaultValue = ((DropDownList)GridView3.FooterRow.FindControl("ddlSala")).SelectedValue;
SqlDataSource1.InsertParameters["admisLa"].DefaultValue = ((DropDownList)GridView3.FooterRow.FindControl("ddlAdmis")).SelectedValue;
SqlDataSource1.InsertParameters["User"].DefaultValue = ((DropDownList)GridView3.FooterRow.FindControl("ddlUser")).SelectedValue;
SqlDataSource1.Insert();
this.GridView3.ShowFooter = true;
this.GridView3.DataBind();
Response.Redirect(Request.Url.AbsolutePath);
}
}
}
And a part of my ascx code:
<asp:GridView ID="GridView3" runat="server" AllowPaging="True" AutoGenerateColumns="False" DataKeyNames="idCandidat" DataSourceID="SqlDataSource1" ShowFooter="True">
<Columns>
<asp:CommandField ShowDeleteButton="True" ShowEditButton="True" />
<asp:TemplateField HeaderText="idCandidat" InsertVisible="False" SortExpression="idCandidat">
<EditItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("idCandidat") %>'></asp:Label>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Bind("idCandidat") %>'></asp:Label>
</ItemTemplate>
<FooterTemplate>
<asp:LinkButton ValidationGroup="INSERT" OnClick="lbInsert_Click" ID="lbInsert" runat="server">Insert</asp:LinkButton>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="nume" SortExpression="nume">
<EditItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("nume") %>'></asp:TextBox>
<asp:RequiredFieldValidator ID="eqNume" runat="server" ErrorMessage="Introduceţi numele"
ControlToValidate="TextBox1" Text="*" ForeColor="Red">
</asp:RequiredFieldValidator>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label2" runat="server" Text='<%# Bind("nume") %>'></asp:Label>
</ItemTemplate>
<FooterTemplate>
<asp:TextBox ID="txtNume" runat="server" style="margin-top: 15px"></asp:TextBox>
<asp:RequiredFieldValidator ValidationGroup="INSERT" ID="eqInsertNume" runat="server" ErrorMessage="Introduceţi numele"
ControlToValidate="txtNume" Text="*" ForeColor="Red">
</asp:RequiredFieldValidator>
</FooterTemplate>
</asp:TemplateField>
.............................................................................
<asp:TemplateField HeaderText="user" SortExpression="user">
<EditItemTemplate>
<asp:TextBox ID="TextBox16" runat="server" Text='<%# Bind("user") %>'></asp:TextBox>
<asp:RequiredFieldValidator ID="eqUser" runat="server" ErrorMessage="Introduceţi userul"
ControlToValidate="TextBox16" Text="*" ForeColor="Red">
</asp:RequiredFieldValidator>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label17" runat="server" Text='<%# Bind("user") %>'></asp:Label>
</ItemTemplate>
<FooterTemplate>
<asp:DropDownList ID="ddlUser" runat="server" DataSourceID="SqlDataSource8" DataTextField="email" DataValueField="email" Height="21px" Width="126px" style="margin-top:15px" >
<asp:ListItem>User</asp:ListItem>
</asp:DropDownList>
<asp:SqlDataSource ID="SqlDataSource8" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString9 %>" ProviderName="<%$ ConnectionStrings:ConnectionString9.ProviderName %>" SelectCommand="SELECT [email] FROM [USERI]"></asp:SqlDataSource>
<asp:RequiredFieldValidator ValidationGroup="INSERT" ID="eqInsertUser" runat="server" ErrorMessage="Introduceţi userul"
ControlToValidate="ddlUser" Text="*" ForeColor="Red">
</asp:RequiredFieldValidator>
</FooterTemplate>
</asp:TemplateField>
</Columns>
<asp:ValidationSummary ValidationGroup="INSERT" ID="ValidationSummary1" ForeColor="Red" runat="server" />
<p>
<asp:ValidationSummary ID="ValidationSummary2" ForeColor="Red" runat="server" />
<p>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString9 %>"
DeleteCommand="DELETE FROM [CANDIDATI] WHERE [idCandidat] = ?"
InsertCommand="INSERT INTO [CANDIDATI] ([idCandidat], [nume], [prenume], [prenumeTata], [sex], [localitateNastere], [localitateDomiciliu], [nationalitate], [cnp], [serieCI], [numarCI], [telefon], [email], [a2aFacultate], [liceu], [înmatriculat], [sala], [admisLa], [user]) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)" ProviderName="<%$ ConnectionStrings:ConnectionString9.ProviderName %>"
SelectCommand="SELECT * FROM [CANDIDATI]"
UpdateCommand="UPDATE [CANDIDATI] SET [nume] = ?, [prenume] = ?, [prenumeTata] = ?, [sex] = ?, [localitateNastere] = ?, [localitateDomiciliu] = ?, [nationalitate] = ?, [cnp] = ?, [serieCI] = ?, [numarCI] = ?, [telefon] = ?, [email] = ?, [a2aFacultate] = ?, [liceu] = ?, [înmatriculat] = ?, [sala] = ?, [admisLa] = ?, [user] = ? WHERE [idCandidat] = ?">
<DeleteParameters>
<asp:Parameter Name="idCandidat" Type="Int32" />
</DeleteParameters>
<InsertParameters>
<asp:Parameter Name="idCandidat" Type="Int32" />
<asp:Parameter Name="nume" Type="String" />
<asp:Parameter Name="prenume" Type="String" />
<asp:Parameter Name="prenumeTata" Type="String" />
<asp:Parameter Name="sex" Type="String" />
<asp:Parameter Name="localitateNastere" Type="Int32" />
<asp:Parameter Name="localitateDomiciliu" Type="Int32" />
<asp:Parameter Name="nationalitate" Type="Int32" />
<asp:Parameter Name="cnp" Type="String" />
<asp:Parameter Name="serieCI" Type="String" />
<asp:Parameter Name="numarCI" Type="Int32" />
<asp:Parameter Name="telefon" Type="String" />
<asp:Parameter Name="email" Type="String" />
<asp:Parameter Name="a2aFacultate" Type="Boolean" />
<asp:Parameter Name="liceu" Type="Int32" />
<asp:Parameter Name="înmatriculat" Type="Boolean" />
<asp:Parameter Name="sala" Type="Int32" />
<asp:Parameter Name="admisLa" Type="Int32" />
<asp:Parameter Name="user" Type="Int32" />
</InsertParameters>
.................................................................
并且在源错误：SqlDataSource1.Insert（）; 堆栈跟踪：
[FormatException：输入字符串的格式不正确。] System.Number.StringToNumber（String str，NumberStyles options，NumberBuffer＆amp; number，NumberFormatInfo info，Boolean parseDecimal）+10689507 System.Number.ParseInt32（String s，NumberStyles style，NumberFormatInfo info）+145 System.String.System.IConvertible.ToInt32（IFormatProvider provider）+46 System.Convert.ChangeType（Object value，TypeCode typeCode，IFormatProvider provider）+297 System.Web.UI.WebControls.Parameter.GetValue（Object value，String defaultValue，TypeCode type，Boolean convertEmptyStringToNull，Boolean ignoreNullableTypeChanges）+126 System.Web.UI.WebControls.Parameter.GetValue（Object value，Boolean ignoreNullableTypeChanges）+63 System.Web.UI.WebControls.Parameter.get_ParameterValue（）+ 40 System.Web.UI.WebControls.ParameterCollection.GetValues（HttpContext context，Control control）+247 System.Web.UI.WebControls.SqlDataSourceView.InitializeParameters（DbCommand命令，ParameterCollection参数，IDictionary exclusionList）+257 System.Web.UI.WebControls.SqlDataSourceView.ExecuteInsert（IDictionary values）+196 System.Web.UI.WebControls.SqlDataSource.Insert（）+19 admitere1.Controale.WebUserControl1.lbInsert_Click（Object sender，EventArgs e）位于c：\ Users \ Iulia \ Desktop \ LICENTA \ Admitere1 \ Admitere1 \ Controale \ WebUserControl1.ascx.cs：63 System.Web.UI.WebControls.LinkButton.OnClick（EventArgs e）+116 System.Web.UI.WebControls.LinkButton.RaisePostBackEvent（String eventArgument）+101 System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent（String eventArgument）+10 System.Web.UI.Page.RaisePostBackEvent（IPostBackEventHandler sourceControl，String eventArgument）+13 System.Web.UI.Page.RaisePostBackEvent（NameValueCollection postData）+9643314 System.Web.UI.Page.ProcessRequestMain（Boolean includeStagesBeforeAsyncPoint，Boolean includeStagesAfterAsyncPoint）+1724
1 个答案:
答案 0 :(得分：0)
我无法在不知道GridView内每个控件的值的情况下为您提供直接的解决方案。该错误是由一个或多个插入参数引起的，Type="Int32"没有整数作为其相应控件传递的值。一个例子是numarCI。尝试调试lblInsert_Click并检查每个应该有整数的控件的值。
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