DataGridView和SqlDataAdapter沒有正確更新

我一直在尋找很多，我無法弄清楚這個問題來自哪裏。發生什麼事是我有一個使用BindingSource，SqlDataAdapter，SqlCommandBuilder和DataTable的datagridview。 datagridview填充了一個簡單的select查詢（它只使用MSSQL Server DB中的一個表）。我希望能夠編輯此表中的內容。現在，編輯工作，但不是它應該的方式。我想我可以編輯一個單元格，按回車鍵，並將更改提交給數據庫。實際發生的情況是，直到完成編輯第二個單元格爲止，這些更改纔會出現。任何人都知道我在這裏忽略了什麼？謝謝！DataGridView和SqlDataAdapter沒有正確更新

這裏是在cs文件的相關代碼：

public partial class CheckIn : Form 
{ 

    private BindingSource searchDGVBindingSource = new BindingSource(); 
    private SqlDataAdapter searchDGVDataAdapter; 
    private SqlCommandBuilder searchDGVSqlCommandBuilder; 
    private DataTable searchDGVDataTable; 


    public CheckIn() 
    { 
     InitializeComponent(); 
     this.Load += new System.EventHandler(CheckIn_Load); 
    } 

    private void CheckIn_Load(object sender, EventArgs e) 
    { 
     searchDGV.DataSource = searchDGVBindingSource; 
     searchDGVDataAdapter = new SqlDataAdapter(selectCommand, connectionString); 
     searchDGVSqlCommandBuilder = new SqlCommandBuilder(searchDGVDataAdapter); 
     searchDGVDataTable = new DataTable(); 
     searchDGVDataTable.Locale = System.Globalization.CultureInfo.InvariantCulture; 
     searchDGVDataAdapter.Fill(searchDGVDataTable); 
     searchDGVBindingSource.DataSource = searchDGVDataTable; 

     searchDGV.AutoResizeColumns(); 
    } 

    private void searchGridView_RowEndEdit(object sender, DataGridViewCellEventArgs e) 
    { 
     searchDGVDataAdapter.Update(searchDGVDataTable); 
    } 
}

下面是從了.Designer.cs文件中的相關代碼：

 // 
     // searchDGV 
     // 
     this.searchDGV.AllowUserToAddRows = false; 
     this.searchDGV.AllowUserToDeleteRows = false; 
     this.searchDGV.BackgroundColor = System.Drawing.Color.White; 
     this.searchDGV.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize; 
     this.searchDGV.Location = new System.Drawing.Point(10, 250); 
     this.searchDGV.MultiSelect = false; 
     this.searchDGV.Name = "searchDGV"; 
     this.searchDGV.SelectionMode = System.Windows.Forms.DataGridViewSelectionMode.FullRowSelect; 
     this.searchDGV.Size = new System.Drawing.Size(619, 150); 
     this.searchDGV.TabIndex = 7; 
     this.searchDGV.CellClick += new System.Windows.Forms.DataGridViewCellEventHandler(this.searchGridView_CellClick); 
     this.searchDGV.CellEndEdit += new System.Windows.Forms.DataGridViewCellEventHandler(this.searchGridView_RowEndEdit);

來源

2012-02-24 mjb2424

任何你有'CellEndEdit'事件被一個名爲'searchGridView_RowEndEdit'的方法處理的原因？ – 2012-02-24 19:21:04

我只是沒有將searchGridView_RowEndEdit方法重命名爲更合適的東西。我之所以這樣命名，是因爲我正在嘗試一種不同的方法。 – mjb2424 2012-02-24 20:11:38

您是否驗證了您正在執行的更改實際上是有效的？ – 2012-02-24 20:30:24

你需要調用searchDGVBindingSource.EndEdit()在事件處理程序，它會工作：

private void searchGridView_RowEndEdit(object sender, DataGridViewCellEventArgs e) 
{ 
    searchDGVBindingSource.EndEdit(); 
    searchDGVDataAdapter.Update(searchDGVDataTable); 
}

檢查documentation爲BindingSource.EndEdit()瞭解更多信息。

來源

2012-02-24 20:36:03

這個伎倆！我花了相當長的時間試圖追查下來，謝謝！ – mjb2424 2012-02-25 01:54:39

DataGridView和SqlDataAdapter沒有正確更新

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