我在datagridview上遇到问题隐藏列..
我不知道为什么我的代码不起作用..
这是我的代码..
private void kodeSatuanList() // this one
{
Connection.sqlConnection.Close();
Connection.Connector(server, database, user, password);
adapterKodeSatuan = new SqlDataAdapter(
"SELECT ID,KOSAT,KETERANGAN FROM KOSAT", Connection.sqlConnection);
dataTableKodeSatuan.Clear();
dataGridView1.ClearSelection();
adapterKodeSatuan.Fill(dataTableKodeSatuan);
dataViewKodeSatuan = dataTableKodeSatuan.DefaultView;
dataGridView1.ColumnCount = 3;
dataGridView1.Columns[0].Visible = false; //this..column id, i set it false..
dataGridView1.Columns[0].Name = "id";
dataGridView1.Columns[0].HeaderText = "id";
dataGridView1.Columns[0].DataPropertyName = "id";
dataGridView1.Columns[1].Name = "Kode";
dataGridView1.Columns[1].HeaderText = "Kode";
dataGridView1.Columns[1].DataPropertyName = "kosat";
dataGridView1.Columns[2].HeaderText = "Keterangan";
dataGridView1.Columns[2].Name = "Keterangan";
dataGridView1.Columns[2].DataPropertyName = "keterangan";
dataGridView1.Columns[1].SortMode = DataGridViewColumnSortMode.Automatic;
dataGridView1.Columns[2].SortMode = DataGridViewColumnSortMode.Automatic;
dataGridView1.DataSource = dataViewKodeSatuan;
Console.WriteLine("dataGridView1.Rows.Count = " + dataGridView1.Rows.Count);
dataGridView1.Rows[dataGridView1.Rows.Count - 1].Selected = true;
}
根据我的代码......当我运行我的代码时......列“id”必须是不可见的。
请注意this video ..我录了它...... 或者从我的4shared中获取video。
我仍然不知道我的问题，我仍然不知道我的代码有什么问题......旁边...... 我改变了我的代码，但是我没有使用SqlDataAdapter ..
private void kodeSatuanList()//this one
{
Connection.sqlConnection.Close();
Connection.Connector(server, database, user, password);
Connection.sqlCommand.Connection = Connection.sqlConnection;
Connection.sqlCommand.CommandType = CommandType.Text;
Connection.sqlCommand.CommandText = "SELECT ID,KOSAT,KETERANGAN FROM KOSAT";
SqlDataReader kosatList = Connection.sqlCommand.ExecuteReader();
while (kosatList.Read())
{
dataGridView1.Rows.Add(kosatList["ID"], kosatList["KOSAT"], kosatList["KETERANGAN"]);
}
Connection.sqlConnection.Close();
//adapterKodeSatuan = new SqlDataAdapter("SELECT id,Kode,Keterangan FROM KOSAT", Connection.sqlConnection);
//dataTableKodeSatuan.Clear();
//dataGridView1.Columns.Clear();
////dataGridView1.ClearSelection();
//dataGridView1.ColumnCount = 3;
////dataGridView1.Columns[0].Visible = false; //this..column id, i set it false..
//dataGridView1.Columns[0].Name = "id";
//dataGridView1.Columns[0].HeaderText = "id";
//dataGridView1.Columns[0].DataPropertyName = "id";
//dataGridView1.Columns[1].Name = "Kode";
//dataGridView1.Columns[1].HeaderText = "Kode";
//dataGridView1.Columns[1].DataPropertyName = "kosat";
//dataGridView1.Columns[2].HeaderText = "Keterangan";
//dataGridView1.Columns[2].Name = "Keterangan";
//dataGridView1.Columns[2].DataPropertyName = "keterangan";
//dataGridView1.Columns[1].SortMode = DataGridViewColumnSortMode.Automatic;
//dataGridView1.Columns[2].SortMode = DataGridViewColumnSortMode.Automatic;
//adapterKodeSatuan.Fill(dataTableKodeSatuan);
//dataViewKodeSatuan = dataTableKodeSatuan.DefaultView;
//dataGridView1.DataSource = dataViewKodeSatuan;
////dataGridView1.Columns[0].Visible = false;
//Console.WriteLine("dataGridView1.Rows.Count = " + dataGridView1.Rows.Count);
//dataGridView1.Rows[dataGridView1.Rows.Count - 1].Selected = true;
//this.dataGridView1.Columns[0].Visible = false;
//try
//{
// Connection.Connector(server, database, user, password);
// listView1.Columns.Add("Kode", 70);
// listView1.Columns.Add("Keterangan", 140);
// //listView1.Items.Clear();
// adapterKodeSatuan = new SqlDataAdapter("SELECT * FROM KOSAT WHERE DELETEFLAG='N' ", Connection.sqlConnection);
// DataTable dt = new DataTable();
// adapterKodeSatuan.Fill(dt);
// ListViewItem listitem;
// Console.WriteLine("size = " + dt.Rows.Count);
// for (int i = 0; i < dt.Rows.Count; i++)
// {
// DataRow dr = dt.Rows[i];
// listitem = new ListViewItem();
// listitem.SubItems.Add( dr[0].ToString() );
// listitem.SubItems.Add( dr[1].ToString() );
// listitem.SubItems.Add( dr[2].ToString() );
// Console.WriteLine("aaa = " + dr[0].ToString());
// Console.WriteLine("bbb = " + dr[1].ToString());
// Console.WriteLine("ccc = " + dr[2].ToString());
// listView1.Items.Add(listitem);
// }
// listView1.Show();
//}
//catch (Exception ms)
//{
// Console.WriteLine("aaa");
//}
}
这是我在kodeSatuan.cs中的代码
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using Microsoft.Win32;
using System.Data.SqlClient;
namespace belajarVariabelGlobal
{
public partial class kodeSatuan : Form
{
public readonly static string server = Registry.LocalMachine.OpenSubKey("Software\\Session", true).GetValue("server").ToString();
public readonly static string database = Registry.LocalMachine.OpenSubKey("Software\\Session", true).GetValue("database").ToString();
public readonly static string user = Registry.LocalMachine.OpenSubKey("Software\\Session", true).GetValue("user").ToString();
public readonly static string password = Registry.LocalMachine.OpenSubKey("Software\\Session", true).GetValue("pass").ToString();
public static string kosat;
public static string ket;
SqlDataReader reader;
SqlDataAdapter adapterKodeSatuan;
DataTable dataTableKodeSatuan = new DataTable();
DataView dataViewKodeSatuan = new DataView();
public kodeSatuan()
{
InitializeComponent();
}
private void kodeSatuanList()//this one
{
Connection.sqlConnection.Close();
Connection.Connector(server, database, user, password);
Connection.sqlCommand.Connection = Connection.sqlConnection;
Connection.sqlCommand.CommandType = CommandType.Text;
Connection.sqlCommand.CommandText = "SELECT ID,KOSAT,KETERANGAN FROM KOSAT";
SqlDataReader kosatList = Connection.sqlCommand.ExecuteReader();
while (kosatList.Read())
{
dataGridView1.Rows.Add(kosatList["ID"], kosatList["KOSAT"], kosatList["KETERANGAN"]);
}
Connection.sqlConnection.Close();
//adapterKodeSatuan = new SqlDataAdapter("SELECT id,Kode,Keterangan FROM KOSAT", Connection.sqlConnection);
//dataTableKodeSatuan.Clear();
//dataGridView1.Columns.Clear();
////dataGridView1.ClearSelection();
//dataGridView1.ColumnCount = 3;
////dataGridView1.Columns[0].Visible = false; //this..column id, i set it false..
//dataGridView1.Columns[0].Name = "id";
//dataGridView1.Columns[0].HeaderText = "id";
//dataGridView1.Columns[0].DataPropertyName = "id";
//dataGridView1.Columns[1].Name = "Kode";
//dataGridView1.Columns[1].HeaderText = "Kode";
//dataGridView1.Columns[1].DataPropertyName = "kosat";
//dataGridView1.Columns[2].HeaderText = "Keterangan";
//dataGridView1.Columns[2].Name = "Keterangan";
//dataGridView1.Columns[2].DataPropertyName = "keterangan";
//dataGridView1.Columns[1].SortMode = DataGridViewColumnSortMode.Automatic;
//dataGridView1.Columns[2].SortMode = DataGridViewColumnSortMode.Automatic;
//adapterKodeSatuan.Fill(dataTableKodeSatuan);
//dataViewKodeSatuan = dataTableKodeSatuan.DefaultView;
//dataGridView1.DataSource = dataViewKodeSatuan;
////dataGridView1.Columns[0].Visible = false;
//Console.WriteLine("dataGridView1.Rows.Count = " + dataGridView1.Rows.Count);
//dataGridView1.Rows[dataGridView1.Rows.Count - 1].Selected = true;
//this.dataGridView1.Columns[0].Visible = false;
//try
//{
// Connection.Connector(server, database, user, password);
// listView1.Columns.Add("Kode", 70);
// listView1.Columns.Add("Keterangan", 140);
// //listView1.Items.Clear();
// adapterKodeSatuan = new SqlDataAdapter("SELECT * FROM KOSAT WHERE DELETEFLAG='N' ", Connection.sqlConnection);
// DataTable dt = new DataTable();
// adapterKodeSatuan.Fill(dt);
// ListViewItem listitem;
// Console.WriteLine("size = " + dt.Rows.Count);
// for (int i = 0; i < dt.Rows.Count; i++)
// {
// DataRow dr = dt.Rows[i];
// listitem = new ListViewItem();
// listitem.SubItems.Add( dr[0].ToString() );
// listitem.SubItems.Add( dr[1].ToString() );
// listitem.SubItems.Add( dr[2].ToString() );
// Console.WriteLine("aaa = " + dr[0].ToString());
// Console.WriteLine("bbb = " + dr[1].ToString());
// Console.WriteLine("ccc = " + dr[2].ToString());
// listView1.Items.Add(listitem);
// }
// listView1.Show();
//}
//catch (Exception ms)
//{
// Console.WriteLine("aaa");
//}
}
private void toolStripButton2_Click(object sender, EventArgs e)
{
toolStripButton1.Enabled = false;
toolStripButton2.Enabled = false;
toolStripButton3.Enabled = false;
toolStripButton4.Visible = false;
toolStripButton5.Visible = false;
toolStripButton6.Visible = false;
toolStripButton7.Visible = false;
toolStripButton10.Visible = true;
toolStripButton11.Visible = true;
kodesatuanTxt.Enabled = true;
keteranganTxt.Enabled = true;
deleteFlag.Enabled = true;
}
private void kodeSatuan_Load(object sender, EventArgs e)
{
kodesatuanTxt.Enabled = false;
keteranganTxt.Enabled = false;
deleteFlag.Enabled = false;
toolStripButton2.Visible = false;
toolStripButton3.Visible = false;
toolStripButton10.Visible = false;
toolStripButton11.Visible = false;
//kodeSatuanList();//this is my function that i call to datagridview or list
}
private void toolStripButton11_Click(object sender, EventArgs e)
{
DialogResult batal = MessageBox.Show("Perubahan dibatalkan ?", "Confirm", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (batal == DialogResult.Yes)
{
//this.Close();
kodesatuanTxt.Text = kosat;
keteranganTxt.Text = ket;
kodesatuanTxt.Enabled = false;
keteranganTxt.Enabled = false;
deleteFlag.Enabled = false;
toolStripButton1.Enabled = true;
toolStripButton2.Enabled = true;
toolStripButton3.Enabled = true;
toolStripButton4.Visible = true;
toolStripButton5.Visible = true;
toolStripButton6.Visible = true;
toolStripButton7.Visible = true;
toolStripButton8.Visible = true;
toolStripButton9.Visible = true;
toolStripButton10.Visible = false;
toolStripButton11.Visible = false;
}
}
private void button1_Click(object sender, EventArgs e)
{
this.Close();
}
private void toolStripButton1_Click(object sender, EventArgs e)
{
kodesatuanTxt.Enabled = true;
keteranganTxt.Enabled = true;
deleteFlag.Enabled = true;
toolStripButton10.Visible = true;
toolStripButton11.Visible = true;
toolStripButton1.Enabled = false;
toolStripButton2.Visible = false;
toolStripButton3.Visible = false;
toolStripButton4.Enabled = false;
toolStripButton5.Enabled = false;
toolStripButton6.Enabled = false;
toolStripButton7.Enabled = false;
toolStripButton8.Enabled = false;
toolStripButton9.Enabled = false;
kodesatuanTxt.Text = null;
keteranganTxt.Text = null;
idLbl.Text = "null";
}
private void toolStripButton10_Click(object sender, EventArgs e)
{//ini setelah saya menekan tombol save...atau simpan
try
{
string nonAktif = "N";
string keteranganTmp = null;
if (kodesatuanTxt.Text.Equals(""))
{
MessageBox.Show("Kode satuan tidak boleh kosong!", "Kode Satuan");
kodesatuanTxt.Focus();
return;
}
else
{
if(deleteFlag.Checked == true){
nonAktif = "Y";
}
if(!keteranganTxt.Text.Equals("")){
keteranganTmp = keteranganTxt.Text;
}
if (idLbl.Text.Equals("null"))
{
Connection.Connector(server, database, user, password);
Connection.sqlCommand = new SqlCommand("SELECT * FROM kosat where kosat = '" + kodesatuanTxt.Text + "'", Connection.sqlConnection);
reader = Connection.sqlCommand.ExecuteReader();
if (reader.Read())
{
//String id = Convert.ToString(reader["id"]);
//jika data yang mau saya buat itu belum ada...baru bisa insert baru..
DialogResult avaiable = MessageBox.Show("Kode satuan " + kodesatuanTxt.Text + " sudah ada", "Duplicate", MessageBoxButtons.OK, MessageBoxIcon.Error);
if (avaiable == DialogResult.Yes)
{
this.Close();
}
return;
}
else
{//ini coding buat insertnya..
Connection.sqlConnection.Close();
Connection.Connector(server, database, user, password);
Connection.sqlCommand = new SqlCommand();
Connection.sqlCommand.Connection = Connection.sqlConnection;
Connection.sqlCommand.CommandType = CommandType.Text;
Connection.sqlCommand.CommandText = "insert into kosat(kosat,keterangan,deleteFlag) values('" + kodesatuanTxt.Text + "','" + keteranganTmp + "','" + nonAktif + "')";
//con.Open();
Connection.sqlCommand.ExecuteNonQuery();
Connection.sqlConnection.Close();
kodeSatuanList();//disini saya panggil fungsi tadi..
//dataGridView1.Rows[dataGridView1.Rows.Count - 1].Selected = true;
//reader = Connection.sqlCommand.ExecuteReader();
}
}
else
{
Connection.Connector(server, database, user, password);
Connection.sqlCommand = new SqlCommand();
Connection.sqlCommand.Connection = Connection.sqlConnection;
Connection.sqlCommand.CommandType = CommandType.Text;
Connection.sqlCommand.CommandText = "UPDATE kosat SET kosat = '" + kodesatuanTxt.Text + "', keterangan = '" + keteranganTmp + "', deleteFlag = '" + nonAktif + "' WHERE id = "+ idLbl.Text;
//con.Open();
Console.WriteLine(Connection.sqlCommand.CommandText);
Connection.sqlCommand.ExecuteNonQuery();
Connection.sqlConnection.Close();
kodeSatuanList();
}
}
}
catch
{
}
}
private void dataGridView1_CellMouseClick(object sender, DataGridViewCellMouseEventArgs e)
{
System.Text.StringBuilder cellInformation = new System.Text.StringBuilder();
cellInformation.AppendFormat("{0} = {1}", "ColumnIndex", e.ColumnIndex);
cellInformation.AppendLine();
cellInformation.AppendFormat("{0} = {1}", "RowIndex", e.RowIndex);
cellInformation.AppendLine();
string row = dataGridView1.Rows[e.RowIndex].ToString();
MessageBox.Show(dataGridView1.Rows[e.RowIndex].Cells[0].Value.ToString(), "aa");//berdasarkan coding, kalau di coding 3 row, 1 row hidden brrt jadinya tetap 3 row
MessageBox.Show(dataGridView1.SelectedCells[0].Value.ToString(), "CellMouseClick Event");//berdasarkan tampilan, kalau di coding 3 row, 1 row hidden jadinya sisa 2 row
//kodesatuanTxt.Text = dataGridView1.Rows[e.RowIndex].Cells[1].Value.ToString();
//keteranganTxt.Text = dataGridView1.Rows[e.RowIndex].Cells[2].Value.ToString();
////kodesatuan = dataGridView1.Rows[e.RowIndex].Cells[1].Value.ToString();
////keterangan = dataGridView1.Rows[e.RowIndex].Cells[2].Value.ToString();
//toolStripButton2.Visible = true;
//toolStripButton3.Visible = true;
}
private void dataGridView1_ColumnHeaderMouseClick(object sender, DataGridViewCellMouseEventArgs e)
{
dataGridView1.Columns[1].SortMode = DataGridViewColumnSortMode.Automatic;
}
private void button2_Click(object sender, EventArgs e)
{
dataGridView1.Columns[1].SortMode = DataGridViewColumnSortMode.Automatic;
}
private void dataGridView1_SelectionChanged(object sender, EventArgs e)
{
if (dataGridView1.SelectedCells.Count > 0)
{
int selectedrowindex = dataGridView1.SelectedCells[0].RowIndex;
DataGridViewRow selectedRow = dataGridView1.Rows[selectedrowindex];
string x = Convert.ToString(selectedRow.Cells[0].Value);
string code = Convert.ToString(selectedRow.Cells[1].Value);
string description = Convert.ToString(selectedRow.Cells[2].Value);
//string a = Convert.ToString(selectedRow.Cells["ID"].Value); //ID nama dari header table
Console.WriteLine("a = "+x);
Console.WriteLine("kodee = " + code);
Console.WriteLine("ket = " + description);
idLbl.Text = x;
kodesatuanTxt.Text = code;
keteranganTxt.Text = description;
kosat = code;
ket = description;
toolStripButton2.Visible = true;
toolStripButton3.Visible = true;
}
}
}
答案 0 :(得分：0)
在Form_load事件中编写以下代码行：
dataGridView1.Columns[0].Visible = false;
在自定义方法中删除该行。
或者您可以将句子移到最后一个方法：
private void kodeSatuanList()//this one
{
Connection.sqlConnection.Close();
Connection.Connector(server, database, user, password);
adapterKodeSatuan = new SqlDataAdapter("SELECT ID,KOSAT,KETERANGAN FROM KOSAT", Connection.sqlConnection);
dataTableKodeSatuan.Clear();
dataGridView1.ClearSelection();
adapterKodeSatuan.Fill(dataTableKodeSatuan);
dataViewKodeSatuan = dataTableKodeSatuan.DefaultView;
dataGridView1.ColumnCount = 3;
dataGridView1.Columns[0].Name = "id";
dataGridView1.Columns[0].HeaderText = "id";
dataGridView1.Columns[0].DataPropertyName = "id";
dataGridView1.Columns[1].Name = "Kode";
dataGridView1.Columns[1].HeaderText = "Kode";
dataGridView1.Columns[1].DataPropertyName = "kosat";
dataGridView1.Columns[2].HeaderText = "Keterangan";
dataGridView1.Columns[2].Name = "Keterangan";
dataGridView1.Columns[2].DataPropertyName = "keterangan";
dataGridView1.Columns[1].SortMode = DataGridViewColumnSortMode.Automatic;
dataGridView1.Columns[2].SortMode = DataGridViewColumnSortMode.Automatic;
dataGridView1.DataSource = dataViewKodeSatuan;
Console.WriteLine("dataGridView1.Rows.Count = " + dataGridView1.Rows.Count);
dataGridView1.Rows[dataGridView1.Rows.Count - 1].Selected = true;
dataGridView1.Columns[0].Visible = false; //this..column id, i set it false..
}
答案 1 :(得分：0)
在某些情况下，我确认填充.Visible时可能会丢失第一列的DataGridView属性。
我解决了在最后一个位置移动此列或将DataColumn.ColumnMapping设置为MappingType.Hidden。
在您的代码中尝试将adapterKodeSatuan的初始化更改为：
adapterKodeSatuan = new SqlDataAdapter("SELECT KOSAT, KETERANGAN, ID FROM KOSAT", Connection.sqlConnection);
因此，您可以修改.Visible列的ID属性，将其作为dataGridView1.Columns[2]访问。
仅当列无用且您在代码的其他部分不需要时才使用DataColumn.ColumnMapping解决方案。