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我一直在环顾四周，我无法弄清楚这个问题来自哪里。发生的事情是我有一个使用 BindingSource、SqlDataAdapter、SqlCommandBuilder 和 DataTable 的 datagridview。datagridview 填充了一个简单的选择查询（仅使用 MSSQL Server DB 中的一个表）。我希望能够编辑此表中的内容。现在，编辑工作，但不是它应该的方式。我认为我可以编辑一个单元格，按回车键，并将更改提交到数据库。实际发生的情况是，在我完成第二个单元格的编辑之前，这些更改不会出现。有人知道我在这里俯瞰什么吗？谢谢！

以下是 .cs 文件中的相关代码：

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);
    }
}

以下是 .Designer.cs 文件中的相关代码：

        // 
        // 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);
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1 回答 1

2

您需要调用searchDGVBindingSource.EndEdit()事件处理程序，它将起作用：

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

检查文档以BindingSource.EndEdit()了解更多信息。

于 2012-02-24T20:36:03.073 回答