根据DGV的使用方式，我无法使用绑定数据。我将发布所有正在完成的事情，几乎按照我要做的顺序。问题是，当我尝试点击SAVE时，该方法就好像不知道这个＆＃34; dataGridView1＆＃34;角色，几乎就像它超出了范围，但它并没有超出范围。
private void RefreshDGV1(){
dataGridView1.DataSource = null;
dataGridView1.Columns.Clear();
dataGridView1.Rows.Clear();
string query = (@"
SELECT HLD_ID AS 'HLD_ID' ,
HoldName AS 'Hold Name' ,
BeginDate AS 'Begin Date' ,
FileNumber AS 'File Number' ,
Operation AS 'Operation' ,
Brand AS 'Brand' ,
PAddress AS 'Property Address' ,
Found AS 'Found' ,
Match AS 'Address Match' ,
Secured AS 'File Secured' ,
Relocated AS 'File Relocated' ,
Comment AS 'Comment'
FROM Records
");
//dataGridView1.DataSource = bindingSource1;
//dataGridView1.ColumnCount = 11;
//dataGridView1.Columns[0].Name = "Hold Name";
DataGridViewTextBoxColumn HoldName = new DataGridViewTextBoxColumn();
HoldName.HeaderText = "Hold Name";
HoldName.Name = "Hold Name";
HoldName.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
dataGridView1.Columns.Add(HoldName);
//dataGridView1.Columns[1].Name = "Begin Date";
DataGridViewTextBoxColumn BeginDate = new DataGridViewTextBoxColumn();
BeginDate.HeaderText = "Begin Date";
BeginDate.Name = "Begin Date";
BeginDate.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
dataGridView1.Columns.Add(BeginDate);
//dataGridView1.Columns[2].Name = "File Number";
DataGridViewTextBoxColumn FileNumber = new DataGridViewTextBoxColumn();
FileNumber.HeaderText = "File Number";
FileNumber.Name = "File Number";
FileNumber.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
dataGridView1.Columns.Add(FileNumber);
//dataGridView1.Columns[3].Name = "Operation";
DataGridViewTextBoxColumn Operation = new DataGridViewTextBoxColumn();
Operation.HeaderText = "Operation";
Operation.Name = "Operation";
Operation.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
dataGridView1.Columns.Add(Operation);
//dataGridView1.Columns[4].Name = "Brand";
DataGridViewTextBoxColumn Brand = new DataGridViewTextBoxColumn();
Brand.HeaderText = "Brand";
Brand.Name = "Brand";
Brand.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
dataGridView1.Columns.Add(Brand);
//dataGridView1.Columns[5].Name = "Property Address";
DataGridViewTextBoxColumn PropertyAddress = new DataGridViewTextBoxColumn();
PropertyAddress.HeaderText = "Property Address";
PropertyAddress.Name = "PropertyAddress";
PropertyAddress.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
dataGridView1.Columns.Add(PropertyAddress);
//dataGridView1.Columns[6].Name = "Found";
DataGridViewComboBoxColumn Found = new DataGridViewComboBoxColumn();
Found.HeaderText = "Found";
Found.Name = "Found";
Found.Items.Add("");
Found.Items.Add("Found");
Found.Items.Add("Not Found");
Found.Items.Add("In Progress");
Found.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
dataGridView1.Columns.Add(Found);
//dataGridView1.Columns[7].Name = "Address Match";
DataGridViewComboBoxColumn AddressMatch = new DataGridViewComboBoxColumn();
AddressMatch.HeaderText = "Address Match";
AddressMatch.Name = "Address Match";
AddressMatch.Items.Add("");
AddressMatch.Items.Add("Yes");
AddressMatch.Items.Add("No");
AddressMatch.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
dataGridView1.Columns.Add(AddressMatch);
//dataGridView1.Columns[8].Name = "File Secured";
DataGridViewCheckBoxColumn FileSecured = new DataGridViewCheckBoxColumn();
FileSecured.HeaderText = "File Secured";
FileSecured.Name = "File Secured";
FileSecured.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
dataGridView1.Columns.Add(FileSecured);
//dataGridView1.Columns[9].Name = "File Relocated";
DataGridViewTextBoxColumn FileRelocated = new DataGridViewTextBoxColumn();
FileRelocated.HeaderText = "File Relocated";
FileRelocated.Name = "File Relocated";
FileRelocated.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
dataGridView1.Columns.Add(FileRelocated);
//dataGridView1.Columns[10].Name = "Comment";
DataGridViewTextBoxColumn Comment = new DataGridViewTextBoxColumn();
Comment.HeaderText = "Comment";
Comment.Name = "Comment";
Comment.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
Comment.Width = (dataGridView1.Width / 11);
dataGridView1.Columns.Add(Comment);
//dataGridView1.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
//other stuff
//dataGridView1.Columns[(dataGridView1.ColumnCount-1)].AutoSizeMode = DataGridViewAutoSizeColumnMode.DisplayedCells;
dataGridView1.Columns[(dataGridView1.ColumnCount-1)].DefaultCellStyle.WrapMode = DataGridViewTriState.True;
dataGridView1.CellValueChanged += handler_dataGridView1_CellValueChanged;
ReadSQL(query, dataGridView1);
}
private void ReadSQL(string query, DataGridView grid){
try{
string connectionString = "Server=SERVERNAME;Database=DATABASENAME;Persist Security Info=True;User ID=USERNAME;Password=PASSWORD";
dataAdapter = new SqlDataAdapter(query, connectionString);
SqlCommandBuilder commandBuilder = new SqlCommandBuilder(dataAdapter);
DataTable table = new DataTable();
table.Locale = System.Globalization.CultureInfo.InvariantCulture;
dataAdapter.Fill(table);
for(int i = 0 ; i < table.Rows.Count; i++){
int n = grid.Rows.Add();
grid.ColumnCount = 11;
InitializeComponent();
//Add to ID array (list)
RecordIDs.Add(table.Rows[i].ItemArray[0].ToString());
grid.Rows[n].Cells[0].Value = table.Rows[i].ItemArray[1].ToString();
grid.Rows[n].Cells[1].Value = table.Rows[i].ItemArray[2].ToString();
grid.Rows[n].Cells[2].Value = table.Rows[i].ItemArray[3].ToString();
grid.Rows[n].Cells[3].Value = table.Rows[i].ItemArray[4].ToString();
grid.Rows[n].Cells[4].Value = table.Rows[i].ItemArray[5].ToString();
grid.Rows[n].Cells[5].Value = table.Rows[i].ItemArray[6].ToString();
string selection1 = table.Rows[i].ItemArray[7].ToString();
switch(selection1){
case "Found" : try{grid.Rows[n].Cells[6].Value = (grid.Rows[i].Cells[6] as DataGridViewComboBoxCell).Items[1];}catch{}; break;
case "Not Found" : try{grid.Rows[n].Cells[6].Value = (grid.Rows[i].Cells[6] as DataGridViewComboBoxCell).Items[2];}catch{}; break;
case "In Progress" : try{grid.Rows[n].Cells[6].Value = (grid.Rows[i].Cells[6] as DataGridViewComboBoxCell).Items[3];}catch{}; break;
default : try{grid.Rows[n].Cells[6].Value = (grid.Rows[i].Cells[6] as DataGridViewComboBoxCell).Items[0];}catch{}; break;
}
string selection2 = table.Rows[i].ItemArray[8].ToString();
switch(selection2){
case "Yes" : try{grid.Rows[n].Cells[7].Value = (grid.Rows[i].Cells[7] as DataGridViewComboBoxCell).Items[1];}catch{}; break;
case "No" : try{grid.Rows[n].Cells[7].Value = (grid.Rows[i].Cells[7] as DataGridViewComboBoxCell).Items[2];}catch{}; break;
default : try{grid.Rows[n].Cells[7].Value = (grid.Rows[i].Cells[7] as DataGridViewComboBoxCell).Items[0];}catch{}; break;
}
try{grid.Rows[n].Cells[8].Value = table.Rows[i].ItemArray[9].ToString();}catch{}
try{grid.Rows[n].Cells[9].Value = table.Rows[i].ItemArray[10].ToString();}catch{}
try{grid.Rows[n].Cells[10].Value = table.Rows[i].ItemArray[11].ToString();}catch{}
}
LoadDGV1ToolTips();
grid.AutoResizeColumns(DataGridViewAutoSizeColumnsMode.AllCellsExceptHeader);
grid.RowHeadersVisible = false;
grid.EnableHeadersVisualStyles = false;
grid.ColumnHeadersDefaultCellStyle.BackColor = Color.DimGray;
grid.ColumnHeadersDefaultCellStyle.ForeColor = Color.White;
grid.GridColor = Color.RoyalBlue;
for(int i = 0 ; i < grid.Columns.Count; i++){
grid.Columns[i].Width = (grid.Size.Width / grid.Columns.Count) - 1;
}
}catch(SqlException ex){
MessageBox.Show("SQL ERROR: " + ex.ToString());
MessageBox.Show(query);
}
}
private void button4_Click(object sender, EventArgs e){ //SAVE
string name = "";
string date = "";
string file = "";
string operation = "";
string brand = "";
string address = "";
string found = "";
string match = "";
string secured = "";
string relocated = "";
string comment = "";
Console.WriteLine("Column Count: " + this.dataGridView1.ColumnCount);
for (int i = 0; i < this.dataGridView1.ColumnCount; i++){
switch(i){
//put some handlers in here for null values, try/catch?
case 0: try{name = this.dataGridView1.SelectedCells[0].OwningRow.Cells[i].Value.ToString();}catch{}; break;
case 1: try{date = this.dataGridView1.SelectedCells[0].OwningRow.Cells[i].Value.ToString();}catch{}; break;
case 2: try{file = this.dataGridView1.SelectedCells[0].OwningRow.Cells[i].Value.ToString();}catch{}; break;
case 3: try{operation = this.dataGridView1.SelectedCells[0].OwningRow.Cells[i].Value.ToString();}catch{}; break;
case 4: try{brand = this.dataGridView1.SelectedCells[0].OwningRow.Cells[i].Value.ToString();}catch{}; break;
case 5: try{address = this.dataGridView1.SelectedCells[0].OwningRow.Cells[i].Value.ToString();}catch{}; break;
case 6: try{found = this.dataGridView1.SelectedCells[0].OwningRow.Cells[i].Value.ToString();}catch{}; break;
case 7: try{match = this.dataGridView1.SelectedCells[0].OwningRow.Cells[i].Value.ToString();}catch{}; break;
case 8: try{secured = this.dataGridView1.SelectedCells[0].OwningRow.Cells[i].Value.ToString();}catch{}; break;
case 9: try{relocated = this.dataGridView1.SelectedCells[0].OwningRow.Cells[i].Value.ToString();}catch{}; break;
case 10: try{comment = this.dataGridView1.SelectedCells[0].OwningRow.Cells[i].Value.ToString();}catch{}; break;
default: break; //Do Nothing.
}
}
if(secured != "True"){secured = "False";}
string query = (@"
UPDATE Records
SET HoldName = '" + name + "', BeginDate = '" + date + "', FileNumber = '" + file + "', Operation = '" + operation + "', Brand = '" + brand + "', PAddress = '" + address + "', Found = '" + found + "', Match = '" + match + "', Secured = '" + secured + "', Relocated = '" + relocated + "', Comment = '" + comment + "'" +
"WHERE HLD_ID = '" + HLD_ID + "'");
//WriteSQL(query);
Console.WriteLine("Query: " + query);
RefreshDGV1();
}
答案 0 :(得分：1)
这是一个静态类，您可以使用它来更好地调用存储过程，也许您可以利用它并从中学习
//If you want to return a DataSet
public static class SqlDBHelper
{
public static DataSet ExecuteDataSet(string sql, CommandType cmdType, params SqlParameter[] parameters)
{
using (DataSet ds = new DataSet())
using (SqlConnection connStr = new SqlConnection(ConfigurationManager.ConnectionStrings["DbConn"].ConnectionString))
using (SqlCommand cmd = new SqlCommand(sql, connStr))
{
cmd.CommandType = cmdType;
foreach (var item in parameters)
{
cmd.Parameters.Add(item);
}
try
{
cmd.Connection.Open();
new SqlDataAdapter(cmd).Fill(ds);
}
catch (Exception ex)
{
//throw; trap for you exception(s) here
}
return ds;
}
}
//if you want to return a DataTable
public static DataTable ExecuteDataSet(string sql, CommandType cmdType, params SqlParameter[] parameters)
{
using (DataSet ds = new DataSet())
using (SqlConnection connStr = new SqlConnection(ConfigurationManager.ConnectionStrings["DbConn"].ConnectionString))
using (SqlCommand cmd = new SqlCommand(sql, connStr))
{
cmd.CommandType = cmdType;
foreach (var item in parameters)
{
cmd.Parameters.Add(item);
}
try
{
cmd.Connection.Open();
new SqlDataAdapter(cmd).Fill(ds);
}
catch (Exception ex)
{
//Show a message or log a message on ex.Message
}
return ds.Tables[0];
}
}
}