更新網格視圖中的specfic列

Question

我有一個從數據庫中檢索數據的GridView。用戶具有角色，一些用戶將更新GridView中的一列，其他列將根據角色更新其他列，請參閱下面的代碼！我創建瞭如下的存儲過程，並添加了代碼。當我測試項目時，以角色（AR-Tr​​anslator）作爲例子，在網格視圖中編輯列之後，用NULL值替換其他fied，所以請問我能做些什麼？

存儲過程

ALTER Proc [dbo].[GetAllTranslation] 
AS 
BEGIN 
    Select Id,Word 
    ,Trans_AR 
    ,Trans_EN 
    ,Add_Date 
    From Translation 
END 

ALTER Proc [dbo].[UpdateTranslation] 
(
    @IdINT 
    ,@Word NVARCHAR(MAX) 
    ,@Trans_AR NVARCHAR(MAX) 
    ,@Trans_EN NVARCHAR(MAX) 


) 
AS 
BEGIN 
    UPDATE Translation SET 

    Word =@Word 
    ,Trans_AR=@Trans_AR 
    ,Trans_EN=@Trans_EN 

    WHERE Id=@Id 
END 

aspx頁面

<div class="m10"> 
    <asp:GridView ID="GridView1" runat="server" BackColor="White" 
    BorderColor="#DEDFDE" BorderStyle="None" BorderWidth="1px" CellPadding="4" 
    ForeColor="Black" GridLines="Vertical" AllowPaging="True" 
    AllowSorting="True" AutoGenerateColumns="False" DataKeyNames="Id" 
    DataSourceID="SDSTrans" onrowupdated="GridView1_RowUpdated"> 
    <FooterStyle BackColor="#CCCC99" /> 
    <RowStyle BackColor="#F7F7DE" /> 
    <Columns> 
     <asp:CommandField HeaderText="Function" ShowEditButton="True" /> 
     <asp:BoundField DataField="Id" HeaderText="Id" InsertVisible="False" 
      ReadOnly="True" SortExpression="Id" /> 
     <asp:BoundField DataField="Word" HeaderText="Word" SortExpression="Word" /> 
     <asp:BoundField DataField="Trans_AR" HeaderText="Trans_AR" 
      SortExpression="Trans_AR" /> 
     <asp:BoundField DataField="Trans_EN" HeaderText="Trans_EN" 
      SortExpression="Trans_EN" /> 
     <asp:BoundField DataField="Add_Date" HeaderText="Add_Date" 
      SortExpression="Add_Date" /> 
    </Columns> 
    <PagerStyle BackColor="#F7F7DE" ForeColor="Black" HorizontalAlign="Right" /> 
    <SelectedRowStyle BackColor="#CE5D5A" Font-Bold="True" ForeColor="White" /> 
    <HeaderStyle BackColor="#6B696B" Font-Bold="True" ForeColor="White" /> 
    <AlternatingRowStyle BackColor="White" /> 
</asp:GridView> 
    <asp:SqlDataSource ID="SDSTrans" runat="server" 
     ConnectionString="Data Source=ELARABY-1EACFA3\SQLEXPRESS;Initial Catalog=ElarabyGroup;Integrated Security=True" 
     ProviderName="System.Data.SqlClient" SelectCommand="GetAllTranslation" 
     SelectCommandType="StoredProcedure" UpdateCommand="UpdateTranslation" 
     UpdateCommandType="StoredProcedure"> 
     <UpdateParameters> 
      <asp:ControlParameter ControlID="GridView1" Name="Id" 
       PropertyName="SelectedValue" Type="Int32" /> 
      <asp:ControlParameter ControlID="GridView1" Name="Word" 
       PropertyName="SelectedValue" Type="String" /> 
      <asp:ControlParameter ControlID="GridView1" Name="Trans_AR" 
       PropertyName="SelectedValue" Type="String" /> 
      <asp:ControlParameter ControlID="GridView1" Name="Trans_EN" 
       PropertyName="SelectedValue" Type="String" /> 
     </UpdateParameters> 
    </asp:SqlDataSource> 
<asp:Label ID="ResultLBL" runat="server" Visible="false"></asp:Label> 
</div> 

CS

public void CheckLoginAuthorty() 
{ 
    using (SqlConnection Con = Connection.GetConnection()) 
    { 
     SqlCommand com = new SqlCommand("CheackLoginInRole", Con); 
     com.CommandType = CommandType.StoredProcedure; 
     com.Parameters.Add(Parameter.NewNVarChar("@Login", Session.Contents["Username"].ToString())); 
     object O = com.ExecuteScalar(); 

     if (O != null) 
     { 
      string S = O.ToString(); 

      if (IsInRole("AR-Translator", O.ToString())) 
      { 

       ((BoundField)GridView1.Columns[2]).ReadOnly = false; 
       ((BoundField)GridView1.Columns[2]).InsertVisible = false; 
       ((BoundField)GridView1.Columns[4]).ReadOnly = false; 
       ((BoundField)GridView1.Columns[4]).InsertVisible = false; 


      } 

      else if (IsInRole("EN-Translator", O.ToString())) 
      { 
       ((BoundField)GridView1.Columns[2]).ReadOnly = true; 
       ((BoundField)GridView1.Columns[2]).InsertVisible = false; 
       ((BoundField)GridView1.Columns[3]).ReadOnly = true; 
       ((BoundField)GridView1.Columns[3]).InsertVisible = false; 
      } 
     } 
    } 
} 

Answer 1

我猜你需要更新你的「更新」 SP這樣

ALTER Proc [dbo].[UpdateTranslation] 
(
    @IdINT 
    ,@Word NVARCHAR(MAX) 
    ,@Trans_AR NVARCHAR(MAX) 
    ,@Trans_EN NVARCHAR(MAX) 


) 
AS 
BEGIN 
    UPDATE Translation SET 

    Word =isnull(@Word,Word) 
    ,Trans_AR=isnull(@Trans_AR, Trans_AR) 
    ,Trans_EN=isnull(@Trans_EN ,Trans_EN) 

    WHERE Id=@Id 
END 

Answer 2

我不完全理解，但如果我有要點...默認情況下，空值從數據庫中回來，像這樣：

ALTER Proc [dbo].[GetAllTranslation] 
AS 
BEGIN 
    Select Id 
    ,isnull(Word,'') as 'Word' 
    ,isnull(Trans_AR,'') as 'Trans_AR' 
    ,isnull(Trans_EN,'') as 'Trans_EN' 
    ,Add_Date 
    From Translation 
END