主節點GridView中的多個DataKeyNames

該代碼允許您在Oracle數據庫中搜索表名。那麼當您選擇一行時，它會將所選表格的所有列放在第二個gridview中。主節點GridView中的多個DataKeyNames

下面的代碼工作，如果我只使用一個DatakeyName - 「Table_Name」，但它會顯示相同的表名與不同的所有者，如果他們存在這不是我想要的。我想根據兩個字段 - Table_Name和Owner來提取細節。

我不知道如何獲取詳細信息部分與兩個datakeyNames工作。

<asp:Label ID="lblTitleSrchOracleTab" runat="server" Text="Search For A Table In Oracle"></asp:Label> 
     <br /><br /> 
     <asp:Label ID="lblOracleTableName" runat="server" Text="Oracle Table Name"></asp:Label> 
     <asp:TextBox ID="txtOracleTableName" runat="server"></asp:TextBox> 
     <asp:Button ID="btnOracleTableName" runat="server" Text="Search" 
      /> 
     <br /><br /> 
    <asp:GridView ID="gvOracleTableName" runat="server" CssClass="mGrid" 
      AutoGenerateSelectButton="True" AutoGenerateColumns="False" 
       DataSourceID="sdsOracleTableName" DataKeyNames="Owner,Table_Name" > 
      <Columns> 
       <asp:BoundField DataField="OWNER" HeaderText="OWNER" SortExpression="OWNER" /> 
       <asp:BoundField DataField="TABLE_NAME" HeaderText="TABLE_NAME" 
        SortExpression="TABLE_NAME" /> 
       <asp:BoundField DataField="NUM_ROWS" HeaderText="NUM_ROWS" 
        SortExpression="NUM_ROWS" /> 
       <asp:BoundField DataField="TABLESPACE_NAME" HeaderText="TABLESPACE_NAME" 
        SortExpression="TABLESPACE_NAME" /> 
      </Columns> 
     </asp:GridView> 
     <asp:SqlDataSource ID="sdsOracleTableName" runat="server" 
      ConnectionString="<%$ ConnectionStrings:ConnectionString %>" 
      ProviderName="<%$ ConnectionStrings:ConnectionString.ProviderName %>" SelectCommand="SELECT Owner, Table_name, Num_Rows, Tablespace_name 
    FROM all_tables 
    WHERE trim(upper(table_name)) LIKE trim(upper('%' || :TableName || '%'))"> 
      <SelectParameters> 
       <asp:ControlParameter ControlID="txtOracleTableName" Name="TableName" 
        PropertyName="Text" /> 
      </SelectParameters> 
     </asp:SqlDataSource> 
     <br /><br /> 
     <asp:GridView ID="gvSelectedTableColumns" runat="server" CssClass="mGrid" 
      AutoGenerateColumns="False" DataSourceID="sdsgvSelectedTableColumns"> 
      <Columns> 
       <asp:BoundField DataField="OWNER" HeaderText="OWNER" SortExpression="OWNER" /> 
       <asp:BoundField DataField="TABLE_NAME" HeaderText="TABLE_NAME" 
        SortExpression="TABLE_NAME" /> 
       <asp:BoundField DataField="COLUMN_NAME" HeaderText="COLUMN_NAME" 
        SortExpression="COLUMN_NAME" /> 
       <asp:BoundField DataField="DATA_TYPE" HeaderText="DATA_TYPE" 
        SortExpression="DATA_TYPE" /> 
       <asp:BoundField DataField="DATA_LENGTH" HeaderText="DATA_LENGTH" 
        SortExpression="DATA_LENGTH" /> 
       <asp:BoundField DataField="NULLABLE" HeaderText="NULLABLE" 
        SortExpression="NULLABLE" /> 
      </Columns> 
      <SelectedRowStyle BorderColor="Red" Font-Bold="True" /> 
     </asp:GridView> 
     <asp:SqlDataSource ID="sdsgvSelectedTableColumns" runat="server" 
      ConnectionString="<%$ ConnectionStrings:ConnectionString %>" 


      ProviderName="<%$ ConnectionStrings:ConnectionString.ProviderName %>" SelectCommand="SELECT Owner, table_name, column_name, Data_Type, Data_Length, Nullable 
    FROM all_tab_columns 
    WHERE trim(upper(Owner)) =trim(upper(:SelectedOwner)) AND 
    trim(upper(table_name)) =trim(upper(:SelectedTableName)) 
    "> 
      <SelectParameters> 
       <asp:ControlParameter ControlID="gvOracleTableName" Name="SelectedOwner" 
        PropertyName="SelectedValue" /> 
       <asp:ControlParameter ControlID="gvOracleTableName" DefaultValue="" 
        Name="SelectedTableName" PropertyName="SelectedValue" /> 
      </SelectParameters> 
     </asp:SqlDataSource>

來源

2009-08-07 FashionHouseJewelry.com

我終於想出了這一個。你不能強大的鼠標 - 它需要實際的代碼！特別是gridview_SelectedIndexChanged事件。

下面是我做到的。

protected void gvOracleTableName_SelectedIndexChanged(object sender, EventArgs e) 
     { 
      string SelectedOwner; 

      SelectedOwner = gvOracleTableName.SelectedRow.Cells[1].Text ; 

      string SelectedTableName; 
      SelectedTableName = gvOracleTableName.SelectedRow.Cells[2].Text; 

      lblTest.Text = SelectedOwner + " " + SelectedTableName; 





      string strConn, strSQL; 
      strConn = @""; 
      strSQL = @"SELECT Owner, table_name, column_name, Data_Type, Data_Length, Nullable FROM all_tab_columns WHERE trim(upper(Owner)) =trim(upper(:SelectedOwner)) AND trim(upper(table_name)) =trim(upper(:SelectedTableName))"; 
      using (OracleConnection cn = new OracleConnection(strConn)) 
      { 
       OracleCommand cmd = new OracleCommand(strSQL, cn); 

       cmd.Parameters.AddWithValue(":SelectedOwner", SelectedOwner); 
       cmd.Parameters.AddWithValue(":SelectedTableName", SelectedTableName); 

       cn.Open(); 

       OracleDataReader rdr = cmd.ExecuteReader(); 

       gvSelectedTableColumns.DataSource = rdr; 
       gvSelectedTableColumns.DataBind(); 

       cn.Close(); 
      } 

     }

來源

2009-08-11 16:45:26

難道你不能擴展where子句嗎？

所以

from all_tables where ... and owner = 'MYOWNER'

或

select from user_tables instead of all_tables.

來源

2009-08-08 06:21:46 tuinstoel

那就是這是

WHERE trim(upper(Owner)) =trim(upper(:SelectedOwner)) AND 
trim(upper(table_name)) =trim(upper(:SelectedTableName))

我的問題是，當你使用SqlDataSource嚮導將paramters連接到GridView控件，它不會讓你選擇gridview的哪個數據鍵綁定它。

來源

2009-08-09 05:53:04

主節點GridView中的多個DataKeyNames

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