0

我有以下数据库设计：

Employee Table: Username, Name, JobTitle, BadgeNo, IsActive, DivisionCode
Divisions Table: SapCode, DivisionShortcut

（DivisionCode 是 Divisions 表中 SapCode 的外键）

我有一个 GridView，我用它来添加、删除和更新/编辑员工信息。此信息是员工用户名、姓名、徽章编号、职位名称、IsActive 和部门快捷方式。部门将列在 DropDownList 中。现在的问题是：更新员工的部门。我编写了代码，但出现以下错误：*

列名“DivisionShortcut”无效。

  • ASP.NET 代码：

        <asp:TemplateField HeaderText="Division">
        <ItemTemplate>
            <%# Eval("DivisionShortcut")%>
        </ItemTemplate>
        <EditItemTemplate>
            <asp:DropDownList ID="DivisionsList" runat="server" DataSourceID="DivisionsListDataSource"
                                DataTextField="DivisionShortcut" DataValueField="SapCode">
            </asp:DropDownList>
        </EditItemTemplate>
    </asp:TemplateField>

    <asp:BoundField DataField="Username" HeaderText="Network ID" ReadOnly="True" 
        SortExpression="Username" />

    <asp:TemplateField HeaderText="Name">
        <ItemTemplate>
            <%# Eval("Name")%>
        </ItemTemplate>
        <EditItemTemplate>
            <asp:TextBox ID="txtEmployeeName" runat="server" Text='<%# Bind("Name")%>' />
        </EditItemTemplate>
    </asp:TemplateField>

    <asp:TemplateField HeaderText="Job Title">
        <ItemTemplate>
            <%# Eval("JobTitle")%>
        </ItemTemplate>
        <EditItemTemplate>
            <asp:TextBox ID="txtJobTitle" runat="server" Text='<%# Bind("JobTitle")%>' />
        </EditItemTemplate>
    </asp:TemplateField>

    <asp:TemplateField HeaderText="Badge No.">
        <ItemTemplate>
            <%# Eval("BadgeNo")%>
        </ItemTemplate>
        <EditItemTemplate>
            <asp:TextBox ID="txtBadgeNo" runat="server" Text='<%# Bind("BadgeNo")%>' />
        </EditItemTemplate>
    </asp:TemplateField>

    <asp:TemplateField HeaderText="Is Active?">
        <ItemTemplate>
            <%# Eval("IsActive")%>
        </ItemTemplate>
        <EditItemTemplate>
            <asp:CheckBox ID="isActive" runat="server" 
                          Checked='<%# Eval("IsActive").ToString().Equals("True") %>'/>
        </EditItemTemplate>
    </asp:TemplateField>

    <asp:TemplateField HeaderText="Delete?">
        <ItemTemplate>
            <span onclick="return confirm('Are you sure to Delete the record?')">
                <asp:ImageButton ID="lnkB" runat="server" ImageUrl="Images/icons/delete24.png" CommandName="Delete" />
            </span>
        </ItemTemplate>
    </asp:TemplateField>
</Columns>

    "

    SelectCommand="SELECT     dbo.Divisions.DivisionShortcut, dbo.employee.Username, dbo.employee.Name, dbo.employee.JobTitle, dbo.employee.BadgeNo, dbo.employee.IsActive
                FROM         dbo.Divisions INNER JOIN
                            dbo.employee ON dbo.Divisions.SapCode = dbo.employee.DivisionCode"
UpdateCommand="UPDATE [employee] SET [Name] = @Name, [JobTitle] = @JobTitle, 
                                    [BadgeNo] = @BadgeNo WHERE [Username] = @Username"
DeleteCommand="DELETE FROM [employee] WHERE [Username] = @Username">
<UpdateParameters>
    <asp:Parameter Name="Name" Type="String"  />
    <asp:Parameter Name="JobTitle" Type="String" />
    <asp:Parameter Name="BadgeNo" Type="String" />
    <asp:Parameter Name="Username" Type="String" />
</UpdateParameters>
<DeleteParameters>
    <asp:Parameter Name="Username" Type="String" />
</DeleteParameters>

    " SelectCommand="SELECT * FROM Divisions">

Code-Behind: //用于编辑 GridView 中的任何行 protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e) { GridView1.EditIndex = e.NewEditIndex; }

//For canceling any editng in any row in the GridView
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
    e.Cancel = true;
    GridView1.EditIndex = -1;
}

//For updating the information in any row in the GridView
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
    GridViewRow gvrow = GridView1.Rows[e.RowIndex];

    DropDownList DivisionsList = (DropDownList)gvrow.FindControl("DivisionsList"); 

    TextBox txtEmployeeName = (TextBox)gvrow.FindControl("txtEmployeeName");
    TextBox txtJobTitle = (TextBox)gvrow.FindControl("txtJobTitle");
    TextBox txtBadgeNo = (TextBox)gvrow.FindControl("txtBadgeNo");

    CheckBox isActive = (CheckBox)gvrow.FindControl("isActive");

    //For getting the ID (primary key) of that row
    string username = GridView1.DataKeys[e.RowIndex].Value.ToString();

    string name = txtEmployeeName.Text;
    string jobTitle = txtJobTitle.Text;
    string badgeNo = txtBadgeNo.Text;
    string division = DivisionsList.SelectedValue.ToString();

    UpdateEmployeeInfo(username, name, jobTitle, badgeNo, division);
}


private void UpdateEmployeeInfo(string username, string name, string jobTitle, string badgeNo, string division)
{
    string connString = ConfigurationManager.ConnectionStrings["UsersInfoDBConnectionString"].ConnectionString;
    SqlConnection conn = new SqlConnection(connString);
    string update = @"UPDATE Employee SET Name = @Name, JobTitle = @JobTitle, 
                        BadgeNo = @BadgeNo, DivisionShortcut = @division WHERE Username = @Username; 
                        UPDATE Divisions SET [DivisionShortcut] = @division WHERE SapCode = @SapCode;";

    SqlCommand cmd = new SqlCommand(update, conn);

    cmd.Parameters.AddWithValue("@Name", name);
    cmd.Parameters.AddWithValue("@JobTitle", jobTitle);
    cmd.Parameters.AddWithValue("@BadgeNo", badgeNo);
    cmd.Parameters.AddWithValue("@division", division);
    cmd.Parameters.AddWithValue("@Username", username);
    //cmd.Parameters.AddWithValue("@IsActive", isActive.checked);

    try
    {
        conn.Open();
        cmd.ExecuteNonQuery();
        conn.Close();

        GridView1.EditIndex = -1;
    }
    catch (Exception ex)
    {
        throw ex;
    }
    finally
    {
        cmd.Dispose();
        conn.Close();
        conn.Dispose();
    }
    GridView1.DataBind();
}

那么我如何能够使用 GridView 中的 DropDownList 更新员工的 Divivsion 字段？

更新：

这是我更新的代码，但仍然没有什么对我有用： ASP.NET 代码：

<asp:GridView ID="GridView1" runat="server" AllowSorting="True" 
            AutoGenerateColumns="False" DataKeyNames="Username" 
            DataSourceID="SqlDataSource1" BorderWidth="1px" BackColor="#DEBA84" 
             CellPadding="3" CellSpacing="2" BorderStyle="None" 
             BorderColor="#DEBA84">
            <FooterStyle ForeColor="#8C4510" 
              BackColor="#F7DFB5"></FooterStyle>
            <PagerStyle ForeColor="#8C4510" 
              HorizontalAlign="Center"></PagerStyle>
            <HeaderStyle ForeColor="White" Font-Bold="True" 
              BackColor="#A55129"></HeaderStyle>
            <Columns>
                <asp:CommandField ButtonType="Image" ShowEditButton="true" ShowCancelButton="true"
                                EditImageUrl="Images/icons/edit24.png" UpdateImageUrl="Images/icons/update24.png" 
                                CancelImageUrl="Images/icons/cancel324.png" />

                <asp:TemplateField HeaderText="Division">
                    <ItemTemplate>
                        <%# Eval("DivisionShortcut")%>
                        <asp:HiddenField ID="divisioncode" value='<%#Eval("divisioncode")%>' runat="server" />
                    </ItemTemplate>
                    <EditItemTemplate>
                        <asp:DropDownList ID="DivisionsList" runat="server" DataSourceID="DivisionsListDataSource"
                                          DataTextField="DivisionShortcut" DataValueField="SapCode">
                        </asp:DropDownList>
                    </EditItemTemplate>
                </asp:TemplateField>

                <asp:BoundField DataField="Username" HeaderText="Network ID" ReadOnly="True" 
                    SortExpression="Username" />

                <asp:TemplateField HeaderText="Name">
                    <ItemTemplate>
                        <%# Eval("Name")%>
                    </ItemTemplate>
                    <EditItemTemplate>
                        <asp:TextBox ID="txtEmployeeName" runat="server" Text='<%# Bind("Name")%>' />
                    </EditItemTemplate>
                </asp:TemplateField>

                <asp:TemplateField HeaderText="Job Title">
                    <ItemTemplate>
                        <%# Eval("JobTitle")%>
                    </ItemTemplate>
                    <EditItemTemplate>
                        <asp:TextBox ID="txtJobTitle" runat="server" Text='<%# Bind("JobTitle")%>' />
                    </EditItemTemplate>
                </asp:TemplateField>

                <asp:TemplateField HeaderText="Badge No.">
                    <ItemTemplate>
                        <%# Eval("BadgeNo")%>
                    </ItemTemplate>
                    <EditItemTemplate>
                        <asp:TextBox ID="txtBadgeNo" runat="server" Text='<%# Bind("BadgeNo")%>' />
                    </EditItemTemplate>
                </asp:TemplateField>

                <asp:TemplateField HeaderText="Is Active?">
                    <ItemTemplate>
                        <%# Eval("IsActive")%>
                    </ItemTemplate>
                    <EditItemTemplate>
                        <asp:CheckBox ID="isActive" runat="server" 
                                      Checked='<%# Eval("IsActive").ToString().Equals("True") %>'/>
                    </EditItemTemplate>
                </asp:TemplateField>

                <asp:TemplateField HeaderText="Delete?">
                    <ItemTemplate>
                        <span onclick="return confirm('Are you sure to Delete the record?')">
                            <asp:ImageButton ID="lnkB" runat="server" ImageUrl="Images/icons/delete24.png" CommandName="Delete" />
                        </span>
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>
        <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
            ConnectionString="<%$ ConnectionStrings:UsersInfoDBConnectionString %>" 

            SelectCommand="SELECT     dbo.Divisions.DivisionShortcut,dbo.employee.DivisionCode, dbo.employee.Username, dbo.employee.Name, dbo.employee.JobTitle, dbo.employee.BadgeNo, dbo.employee.IsActive
                    FROM         dbo.Divisions INNER JOIN
                                dbo.employee ON dbo.Divisions.SapCode = dbo.employee.DivisionCode"
            UpdateCommand="UPDATE [employee] SET [Name] = @Name, [JobTitle] = @JobTitle, 
                                                [BadgeNo] = @BadgeNo WHERE [Username] = @Username"
            DeleteCommand="DELETE FROM [employee] WHERE [Username] = @Username">
            <UpdateParameters>
                <asp:Parameter Name="Name" Type="String"  />
                <asp:Parameter Name="JobTitle" Type="String" />
                <asp:Parameter Name="BadgeNo" Type="String" />
                <asp:Parameter Name="Username" Type="String" />
            </UpdateParameters>
            <DeleteParameters>
                <asp:Parameter Name="Username" Type="String" />
            </DeleteParameters>
        </asp:SqlDataSource>

        <asp:SqlDataSource ID="DivisionsListDataSource" runat="server" 
            ConnectionString="<%$ ConnectionStrings:UsersInfoDBConnectionString %>" 
            SelectCommand="SELECT * FROM Divisions">
        </asp:SqlDataSource>

代码隐藏：

//For editing any row in the GridView
    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e) 
    {
        GridView1.EditIndex = e.NewEditIndex;
    }

    //For canceling any editng in any row in the GridView
    protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
    {
        e.Cancel = true;
        GridView1.EditIndex = -1;
    }

    //For updating the information in any row in the GridView
    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
    {
        GridViewRow gvrow = GridView1.Rows[e.RowIndex];

        DropDownList DivisionsList = (DropDownList)gvrow.FindControl("DivisionsList");
        HiddenField hidden = (HiddenField)gvrow.FindControl("divisioncode");
        string division_code = hidden.Value.ToString();

        TextBox txtEmployeeName = (TextBox)gvrow.FindControl("txtEmployeeName");
        TextBox txtJobTitle = (TextBox)gvrow.FindControl("txtJobTitle");
        TextBox txtBadgeNo = (TextBox)gvrow.FindControl("txtBadgeNo");

        CheckBox isActive = (CheckBox)gvrow.FindControl("isActive");

        //For getting the ID (primary key) of that row
        string username = GridView1.DataKeys[e.RowIndex].Value.ToString();

        string name = txtEmployeeName.Text;
        string jobTitle = txtJobTitle.Text;
        string badgeNo = txtBadgeNo.Text;
        string division = DivisionsList.SelectedValue.ToString();

        //string divisioncode = DivisionsList.SelectedValue;

        UpdateEmployeeInfo(username, name, jobTitle, badgeNo, division, division_code);
    }


    private void UpdateEmployeeInfo(string username, string name, string jobTitle, string badgeNo, string division, string divisioncode)
    {
        string connString = ConfigurationManager.ConnectionStrings["UsersInfoDBConnectionString"].ConnectionString;
        SqlConnection conn = new SqlConnection(connString);
        string update = @"UPDATE Employee SET Name = @Name, JobTitle = @JobTitle, 
                            BadgeNo = @BadgeNo WHERE Username = @Username; 
                            UPDATE Divisions SET [DivisionShortcut] = @division WHERE SapCode = @SapCode;";

        SqlCommand cmd = new SqlCommand(update, conn);

        cmd.Parameters.AddWithValue("@Name", name);
        cmd.Parameters.AddWithValue("@JobTitle", jobTitle);
        cmd.Parameters.AddWithValue("@BadgeNo", badgeNo);
        cmd.Parameters.AddWithValue("@division", division);
        cmd.Parameters.AddWithValue("@Username", username);
        cmd.Parameters.AddWithValue("@SapCode", divisioncode);
        //cmd.Parameters.AddWithValue("@IsActive", isActive.checked);

        try
        {
            conn.Open();
            cmd.ExecuteNonQuery();
            conn.Close();

            GridView1.EditIndex = -1;
        }
        catch (Exception ex)
        {
            throw ex;
        }
        finally
        {
            cmd.Dispose();
            conn.Close();
            conn.Dispose();
        }
        GridView1.DataBind();
    }
4

2 回答 2

2

您在以下行代码部分有错误：

string update = @"UPDATE Employee SET Name = @Name, JobTitle = @JobTitle, 
                        BadgeNo = @BadgeNo, DivisionShortcut = @division WHERE Username = @Username;
                                                     ^^
                        UPDATE Divisions SET [DivisionShortcut] = @division WHERE SapCode = @SapCode;";

dividionshortcut 不是员工表的成员。只需将其从标记位置删除并再次运行它，我相信这将消除您的错误。

要使用的代码。在您的网格视图中添加以下字段：

 <asp:TemplateField HeaderText="Division">
            <ItemTemplate>
                <%# Eval("DivisionShortcut")%>
<asp:HiddenField ID="divisioncode" value='<%#Eval("divisioncode")%>' runat="server" />
            </ItemTemplate>
            <EditItemTemplate>
                <asp:DropDownList ID="DivisionsList" runat="server" DataSourceID="DivisionsListDataSource"
                                    DataTextField="DivisionShortcut" DataValueField="SapCode">
                </asp:DropDownList>
            </EditItemTemplate>
        </asp:TemplateField>

首先使用以下选择命令

 SelectCommand="SELECT     dbo.Divisions.DivisionShortcut,dbo.employee.DivisionCode, dbo.employee.Username, dbo.employee.Name, dbo.employee.JobTitle, dbo.employee.BadgeNo, dbo.employee.IsActive
                    FROM         dbo.Divisions INNER JOIN
                                dbo.employee ON dbo.Divisions.SapCode = dbo.employee.DivisionCode"
    UpdateCommand="UPDATE [employee] SET [Name] = @Name, [JobTitle] = @JobTitle, 
                                        [BadgeNo] = @BadgeNo WHERE [Username] = @Username"
    DeleteCommand="DELETE FROM [employee] WHERE [Username] = @Username">
    <UpdateParameters>
        <asp:Parameter Name="Name" Type="String"  />
        <asp:Parameter Name="JobTitle" Type="String" />
        <asp:Parameter Name="BadgeNo" Type="String" />
        <asp:Parameter Name="Username" Type="String" />
    </UpdateParameters>
    <DeleteParameters>
        <asp:Parameter Name="Username" Type="String" />
    </DeleteParameters>

其次，当调用行更新事件时，使用以下内容：

protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
    GridViewRow gvrow = GridView1.Rows[e.RowIndex];

    DropDownList DivisionsList = (DropDownList)gvrow.FindControl("DivisionsList"); 
    HiddenField hidden = (HiddenField)gvrow.FindControl("divisioncode");
    string division_code=hidden.value.ToString();
    TextBox txtEmployeeName = (TextBox)gvrow.FindControl("txtEmployeeName");
    TextBox txtJobTitle = (TextBox)gvrow.FindControl("txtJobTitle");
    TextBox txtBadgeNo = (TextBox)gvrow.FindControl("txtBadgeNo");

    CheckBox isActive = (CheckBox)gvrow.FindControl("isActive");

    //For getting the ID (primary key) of that row
    string username = GridView1.DataKeys[e.RowIndex].Value.ToString();

    string name = txtEmployeeName.Text;
    string jobTitle = txtJobTitle.Text;
    string badgeNo = txtBadgeNo.Text;
    string division = DivisionsList.SelectedValue.ToString();

    UpdateEmployeeInfo(username, name, jobTitle, badgeNo, division,division_code);
}

现在在后面的代码中为您的函数中的除法代码添加一个参数并调用以下更新函数：

 private void UpdateEmployeeInfo(string username, string name, string jobTitle, string badgeNo, string division,string divisioncode)
    {
        string connString = ConfigurationManager.ConnectionStrings["UsersInfoDBConnectionString"].ConnectionString;
        SqlConnection conn = new SqlConnection(connString);
        string update = @"UPDATE Employee SET Name = @Name, JobTitle = @JobTitle, 
                            BadgeNo = @BadgeNo WHERE Username = @Username; 
                            UPDATE Divisions SET [DivisionShortcut] = @division WHERE SapCode = @SapCode;";

        SqlCommand cmd = new SqlCommand(update, conn);

        cmd.Parameters.AddWithValue("@Name", name);
        cmd.Parameters.AddWithValue("@JobTitle", jobTitle);
        cmd.Parameters.AddWithValue("@BadgeNo", badgeNo);
        cmd.Parameters.AddWithValue("@division", division);
        cmd.Parameters.AddWithValue("@Username", username);
        cmd.Parameters.AddWithValue("@DapCode", divisioncode);

        try
        {
            conn.Open();
            cmd.ExecuteNonQuery();
            conn.Close();

            GridView1.EditIndex = -1;
        }
        catch (Exception ex)
        {
            throw ex;
        }
        finally
        {
            cmd.Dispose();
            conn.Close();
            conn.Dispose();
        }
        GridView1.DataBind();
    }

我希望这能解决你的问题

于 2012-07-11T11:11:52.810 回答
0

这是你的代码

UPDATE Employee SET Name = @Name, JobTitle = @JobTitle, 
                    BadgeNo = @BadgeNo, DivisionShortcut = @division WHERE Username =     @Username;

DivisionShortcut 不是 Employee 表的成员。你有一个更新声明，所以我认为你只是不小心把它留在了那里，从这个更新行中删除它会解决这个问题。

于 2012-07-11T10:02:13.557 回答