我正在尝试使用数据网格的内容填充文本框。
我正在使用一个名为XYZCompany.accbd的数据源。我用数据库的内容填充dgv,在这种情况下,包含供应商ID(自动编号字段),供应商名称,供应商地址,电话号码和合同名称。
首先,我用这些字段填充dgv。然后,我要努力的下一步是,当我单击dgv中的一行时,它应该在文本框中显示该行的数据。问题是,当我单击dgv行时,在文本框中没有显示任何内容,并且没有收到任何错误。
我将连接作为参数传递给新表单。但是我还是会指定它。这是我通过的声明:
OleDbConnection dbConn; OleDbCommand dbCmd; DataSet ds = new DataSet(); OleDbDataAdapter dbAdapter; private void ViewAllSuppliers_Load(object sender, EventArgs e) { dbConn = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0; Data Source=XYZCompany.accdb"); dbCmd = new OleDbCommand("SELECT * FROM Supplier ORDER BY [Supplier ID]", dbConn); dbAdapter = new OleDbDataAdapter(dbCmd); dbAdapter.Fill(ds, "Suppliers"); } private void btnViewSuppliers_Click(object sender, EventArgs e) { dgvSuppliers.DataSource = ds.Tables["Suppliers"]; }
那就是我传递的参数代码。
这是我尝试用来填充文本框的形式的代码:
public partial class ChangeSupplier : Form { OleDbConnection dbConn; OleDbCommand dbCmd; DataSet ds; OleDbDataAdapter dbAdapter; OleDbDataReader dbReader; public ChangeSupplier(OleDbConnection dbConn, OleDbCommand dbCmd, DataSet ds, OleDbDataAdapter dbAdapter) { InitializeComponent(); this.dbConn = dbConn; this.dbCmd = dbCmd; this.ds = ds; this.dbAdapter = dbAdapter; } private void ChangeSupplier_Load(object sender, EventArgs e) { dgvSuppliers.DataSource = ds.Tables["Suppliers"]; } private void dgvSuppliers_CellContentClick(object sender, DataGridViewCellEventArgs e) { if (dgvSuppliers.SelectedRows.Count > 0) { dbConn.Open(); dbCmd = new OleDbCommand("SELECT * FROM Supplier WHERE [Supplier ID] = '" + dgvSuppliers.SelectedRows[0].Cells[0].Value + "'", dbConn); dbReader = dbCmd.ExecuteReader(); while (dbReader.Read()) { txtName.Text = dbReader["[Supplier Name]"].ToString(); txtTelNo.Text = dbReader["[Telephone No]"].ToString(); txtAddress.Text = dbReader["[Supplier Address]"].ToString(); txtContactName.Text = dbReader["[Contact Name]"].ToString(); } } } }
请随时提出任何建议…预先感谢
这是上述问题的解决方案:
private void dgvSuppliers_CellContentClick(object sender, DataGridViewCellEventArgs e) { if (e.RowIndex >= 0) { DataGridViewRow row = this.dgvSuppliers.Rows[e.RowIndex]; txtID.Text = row.Cells["Supplier ID"].Value.ToString(); txtName.Text = row.Cells["Supplier Name"].Value.ToString(); txtTelNo.Text = row.Cells["Telephone No"].Value.ToString(); txtAddress.Text = row.Cells["Supplier Address"].Value.ToString(); txtContactName.Text = row.Cells["Contact Name"].Value.ToString(); } }
我使用行索引来查找用户单击的单元格。