Question

我需要将 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 ADDS NEW 列到我的 DataGridView 。我不需要这个，我只需要在现有列下编写。 拜托，帮助我，伙计们！

Answer 1

试试这个：

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

如果您不想清除所有现有列，则必须为每个现有列设置DataPropertyName，如下所示：

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;
}

Answer 2

更好：

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();

你告诉可绑定的源它绑定到DataTable，反过来你需要告诉你的DataGridView不要自动生成列，所以它只会为你手动输入的列提取数据控件...最后刷新控件以更新数据绑定。

Answer 3

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

Answer 4

//我首先构建了我的数据表，然后填充它，列，行和所有。 //然后，一旦数据表正常运行，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”，否则从datatable到dgv的列名称“分配”将不起作用。我之前也将我的数据表“添加”到了数据集中，但我认为没有必要。

 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();

Answer 5

foreach (DictionaryEntry entry in Hashtable)
{
    datagridviewTZ.Rows.Add(entry.Key.ToString(), entry.Value.ToString());
}

Answer 6

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;
        }

Answer 7

例如，我们要通过以下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());

如何在c＃中将数据表绑定到datagridview

7 个答案: