27

我需要将我的DataTable绑定到我的DataGridView。我这样做：

        DTable = new DataTable();
        SBind = new BindingSource();
        //ServersTable - DataGridView
        for (int i = 0; i < ServersTable.ColumnCount; ++i)
        {
            DTable.Columns.Add(new DataColumn(ServersTable.Columns[i].Name));
        }

        for (int i = 0; i < Apps.Count; ++i)
        {
            DataRow r = DTable.NewRow();
            r.BeginEdit();
            foreach (DataColumn c in DTable.Columns)
            {
                r[c.ColumnName] = //writing values
            }
            r.EndEdit();
            DTable.Rows.Add(r);
        }
        SBind.DataSource = DTable;
        ServersTable.DataSource = SBind;

但我得到的只是DataTable将 新列添加到我的DataGridView中。我不需要这个，我只需要写在现有的列下。

4

7 回答 7

29

Try this:

    ServersTable.Columns.Clear();
    ServersTable.DataSource = SBind;

If you don't want to clear all the existing columns, you have to set DataPropertyName for each existing column like this:

for (int i = 0; i < ServersTable.ColumnCount; ++i) {
  DTable.Columns.Add(new DataColumn(ServersTable.Columns[i].Name));
  ServersTable.Columns[i].DataPropertyName = ServersTable.Columns[i].Name;
}
于 2013-10-01T11:15:40.133 回答
15

更好的是：

DataTable DTable = new DataTable();
BindingSource SBind = new BindingSource();
SBind.DataSource = DTable;
DataGridView ServersTable = new DataGridView();

ServersTable.AutoGenerateColumns = false;
ServersTable.DataSource = DTable;

ServersTable.DataSource = SBind;
ServersTable.Refresh();

您告诉可绑定源它已绑定到 DataTable，反过来您需要告诉 DataGridView 不要自动生成列，因此它只会将数据拉入您手动输入到控件中的列。 .. 最后刷新控件以更新数据绑定。

于 2013-10-01T11:20:59.037 回答
3

在 DataGridView 上，将列的 DataPropertyName 设置为 DataTable 的列名。

于 2013-11-22T13:53:09.177 回答
2

// 我首先构建了我的数据表，并填充了它的列、行和所有内容。//然后，一旦数据表正常工作，请执行以下操作将其绑定到 DGV。注意：对于此示例，DGV 的 AutoGenerateColumns 属性必须为“true”，否则将列名从数据表“分配”到 dgv 将不起作用。我之前也将我的数据表“添加”到了数据集，但我认为这没有必要。

 BindingSource SBind = new BindingSource();
 SBind.DataSource = dtSourceData;

 ADGView1.AutoGenerateColumns = true;  //must be "true" here
 ADGView1.Columns.Clear();
 ADGView1.DataSource = SBind;

 //set DGV's column names and headings from the Datatable properties
 for (int i = 0; i < ADGView1.Columns.Count; i++)
 {
       ADGView1.Columns[i].DataPropertyName = dtSourceData.Columns[i].ColumnName;
       ADGView1.Columns[i].HeaderText = dtSourceData.Columns[i].Caption;
 }
 ADGView1.Enabled = true;
 ADGView1.Refresh();
于 2018-05-25T18:38:25.403 回答
0 
foreach (DictionaryEntry entry in Hashtable)
{
    datagridviewTZ.Rows.Add(entry.Key.ToString(), entry.Value.ToString());
}
于 2014-02-20T19:03:35.857 回答
0 
private void Form1_Load(object sender, EventArgs e)
    {
        DataTable StudentDataTable = new DataTable("Student");

        //perform this on the Load Event of the form
        private void AddColumns() 
        {
            StudentDataTable.Columns.Add("First_Int_Column", typeof(int));
            StudentDataTable.Columns.Add("Second_String_Column", typeof(String));

            this.dataGridViewDisplay.DataSource = StudentDataTable;
        }
    }

    //Save_Button_Event to save the form field to the table which is then bind to the TableGridView
    private void SaveForm()
        {
            StudentDataTable.Rows.Add(new object[] { textBoxFirst.Text, textBoxSecond.Text});

            dataGridViewDisplay.DataSource = StudentDataTable;
        }
于 2018-08-20T12:47:38.333 回答
0

例如，我们想通过以下 2 个步骤将 DataTable 'Users' 设置为 DataGridView： 第 1 步 - 通过以下方式获取所有用户：

public DataTable  getAllUsers()
    {
        OracleConnection Connection = new OracleConnection(stringConnection);
        Connection.ConnectionString = stringConnection;
        Connection.Open();

        DataSet dataSet = new DataSet();

        OracleCommand cmd = new OracleCommand("semect * from Users");
        cmd.CommandType = CommandType.Text;
        cmd.Connection = Connection;

        using (OracleDataAdapter dataAdapter = new OracleDataAdapter())
        {
            dataAdapter.SelectCommand = cmd;
            dataAdapter.Fill(dataSet);
        }

        return dataSet.Tables[0];
    }

第 2 步 - 将返回结果设置为 DataGridView ：

public void setTableToDgv(DataGridView DGV, DataTable table)
    {
        DGV.DataSource = table;
    }

使用示例：

    setTableToDgv(dgv_client,getAllUsers());
于 2018-12-17T21:53:29.500 回答