public void dgvbind(DataGridView dgv, string mystr, string tb)//绑定数据的自定义方法
{
commondb mydb = new commondb();
DataSet mydataset = mydb.ExecuteQuery(mystr, tb);
dgv.DataSource = mydataset.Tables[tb];
}
private void mainform_Load(object sender, EventArgs e)
{
commondb mydb = new commondb();
string mysql = "";
string name = "";
mysql = "select name from worker where worker_num='" + username + "'";
int count = 0;
try
{
count = mydb.Rownum(mysql);
if (count > 0)
{
name = mydb.Returnafield(mysql);
lbl_user_num.Text = username;
lbl_user_name.Text = name;
lbl_admin.Visible = false;
}
if (degree == "管理员")
{
lbl_user_num.Text = username;
lbl_user_name.Text = "";
lbl_admin.Visible = true;
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "操作数据库出错！", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return;
}
}
/// <summary>
/// 绑定查询数据库后的datatable数据
/// </summary>
/// <param name="cbo"></param>
/// <param name="cmdText"></param>
/// <param name="tb"></param>
/// <param name="DisplayFied"></param>
public void tablecbobind(ComboBox cbo, string cmdText, string tb, string DisplayFied)
{
commondb mydb = new commondb();
DataSet mydataset;
// string mystr = "SELECT distinct 接待人 FROM [Table]";
mydataset = mydb.ExecuteQuery(cmdText, tb);
cbo.DataSource = mydataset.Tables[tb];
cbo.DisplayMember = DisplayFied;
}
public void ExportExcel(string fileName, string tablename)
{
/*string saveFileName = "";
* //bool fileSaved = false;
* SaveFileDialog saveDialog = new SaveFileDialog();
* saveDialog.DefaultExt = "xlsx";
* saveDialog.Filter = "Excel文件|*.xlsx";
* saveDialog.FileName = fileName;
* saveDialog.ShowDialog();
* Cursor.Current = Cursors.WaitCursor;*/
string saveFileName = fileName;
if (saveFileName.IndexOf(":") < 0)
{
return; //被点了取消
}
Excel.Application xlApp = new Excel.Application();
if (xlApp == null)
{
MessageBox.Show("无法创建Excel对象，可能您的机子未安装Excel");
return;
}
Excel.Workbooks workbooks = xlApp.Workbooks;
Excel.Workbook workbook = workbooks.Add(Excel.XlWBATemplate.xlWBATWorksheet);
Excel.Worksheet worksheet = (Excel.Worksheet)workbook.Worksheets[1];//取得sheet1
commondb mydb = new commondb();
string mysql = "select * from " + tablename;
DataSet mydataset = mydb.ExecuteQuery(mysql, tablename);
DataTable dt = mydataset.Tables[0];
//写入标题
for (int i = 0; i < dt.Columns.Count; i++)
{
worksheet.Cells[1, i + 1] = dt.Columns[i].ColumnName;
}
//写入数值
Cursor.Current = Cursors.WaitCursor;
for (int r = 0; r < dt.Rows.Count; r++)
{
for (int i = 0; i
< dt.Columns.Count; i++)
{
worksheet.Cells[r + 2, i + 1] = dt.Rows[r][i];
}
System.Windows.Forms.Application.DoEvents();
Cursor.Current = Cursors.WaitCursor;
}
worksheet.Columns.EntireColumn.AutoFit();//列宽自适应
//if (Microsoft.Office.Interop.cmbxType.Text != "Notification")
//{
// Excel.Range rg = worksheet.get_Range(worksheet.Cells[2, 2], worksheet.Cells[ds.Tables[0].Rows.Count + 1, 2]);
// rg.NumberFormat = "00000000";
//}
if (saveFileName != "")
{
try
{
workbook.Saved = true;
workbook.SaveCopyAs(saveFileName);
//fileSaved = true;
}
catch (Exception ex)
{
//fileSaved = false;
MessageBox.Show("导出文件时出错,文件可能正被打开！\n" + ex.Message);
}
}
//else
//{
// fileSaved = false;
//}
xlApp.Quit();
GC.Collect();//强行销毁
// if (fileSaved && System.IO.File.Exists(saveFileName)) System.Diagnostics.Process.Start(saveFileName); //打开EXCEL
}