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我試圖創建一個雙DataGridView Master-Detail窗體來顯示一條SQL語句的結果,但似乎有一個額外的複雜因素,我想要顯示的兩個結果來自同一個表格:我只想讓ID出現在頂部網格中,然後從表格的其餘部分詳細說明有關相同ID的信息以顯示在底部網格中。如果我使用了錯誤的方法,那麼有人可能會指出我錯誤的方向嗎?主要細節C#網格顯示空白和早期
我目前的問題是,代碼得到DataRelation Rel = new DataRelation....
,並顯示在這一點上的形式(兩個DataGrids爲空),而不是執行其餘的代碼。
我已經粘貼了以下完整版本:
private void Form1_Load(object sender, EventArgs e)
{
SpContain.Panel1.Controls.Add(masterDataGridView);
SpContain.Panel2.Controls.Add(detailsDataGridView);
masterDataGridView.DataSource = masterBindingSource;
detailsDataGridView.DataSource = detailsBindingSource;
GetData();
}
private void GetData()
{
string ConnStr = "Server=TradarUAT\\uattradar; Integrated Security=SSPI; Initial Catalog=TradeFiles;";
SqlConnection Conn = new SqlConnection(ConnStr);
DataSet Data = new DataSet();
Data.Locale = System.Globalization.CultureInfo.InvariantCulture;
SqlDataAdapter masterDataAdapter = new SqlDataAdapter("Select MasterReference from [TradeFiles].[dbo].[OMG-Rejects] GROUP BY MasterReference", Conn);
masterDataAdapter.Fill(Data, "[TradeFiles].[dbo].[OMG-Rejects]");
SqlDataAdapter detailDataAdapter = new SqlDataAdapter("Select ImportedDT,TypeIndicator,FileNumber,MasterReference,ClientAlocRef,VersionNumber,DateTimeStamp,ErrorID,ErrorKey,ErrorTxt,ErrorParamType,ErrorParamValue from [TradeFiles].[dbo].[OMG-Rejects]", Conn);
detailDataAdapter.Fill(Data, "[TradeFiles].[dbo].[OMG-Rejects]");
DataRelation Rel = new DataRelation("RejectDetail",
Data.Tables[0].Columns["MasterReference"], Data.Tables[1].Columns["MasterReference"]);
代碼停止上述行執行
Data.Relations.Add(Rel);
masterBindingSource.DataSource = Data;
masterBindingSource.DataMember = "[TradeFiles].[dbo].[OMG-Rejects]";
detailsBindingSource.DataSource = masterBindingSource;
detailsBindingSource.DataMember = "RejectDetail";
}