我编写了一个访问excel文件的代码，并将excel文件中的数据提取到一个名为“liste”的二维数组中。此外，它还将用户输入的文本框和组合框从程序传输到excel文件中。问题是我的程序不会在用户第一次输入所需数据时进行传输，但会在第二次按“kaydet”按钮时进行传输。我已经调试和检查了if语句与我输入的数据一起正常工作但是我第一次点击“kaydet”按钮时似乎没有保存。我在C＃中使用WinForms
任何帮助将不胜感激。 谢谢。
private void button_kaydet_Click(object sender, EventArgs e){
//the text that is obtained from the text boxes and combo boxes.
string txt_LRU = this.txtbx_LRUno.Text.ToString();
string txt_yi = this.txtbx_yi.Text.ToString();
string txt_td = this.cmbx_td.Text.ToString();
string txt_toptarih = this.dtp_toplanti.Text.ToString();
string txt_bastarih = this.dtp_bas.Text.ToString();
string txt_teslimtarih = this.dtp_teslim.Text.ToString();
string txt_ilgilinot = this.txtbx_ilgiliNot.Text.ToString();
string txt_acikislem = this.txtbx_acikislem.Text.ToString();
string txt_referedosya = this.txtbx_referedosya.Text.ToString();
string txt_parcano = this.txtbx_parcano2.Text.ToString();
int lru_row = 0;
int kontrol = 0;
for (int f = 1; f < row_number + 1; f++)
{
//this if statements checks if the user's input already exists in the excel file
if (txt_LRU == liste[f - 1, 1])
{
kontrol = 1;
lru_row = f + 1;
//when first starting in the liste[0][0] has these indexes,in the excel cells
//liste[0][0] actually starts at Cell[1][2]
string hata_mesaji = "LRU " + txt_LRU + " already exists,would you like to update ?";
DialogResult dialogResult = MessageBox.Show(hata_mesaji, "Error", MessageBoxButtons.YesNo);
if (dialogResult == DialogResult.Yes)
{
//remember that Cell[column][row]
sheet1.Cells[2][lru_row] = txt_LRU;
sheet1.Cells[3][lru_row] = txt_parcano;
sheet1.Cells[4][lru_row] = txt_yi;
sheet1.Cells[5][lru_row] = txt_acikislem;
sheet1.Cells[7][lru_row] = txt_td;
sheet1.Cells[8][lru_row] = txt_toptarih;
MessageBox.Show("The data has been updated");
}
else if (dialogResult == DialogResult.No)
MessageBox.Show("The data has not been updated");
}
}
//if there is no existing LRU then save the data into a new row in excel
if (kontrol == 0)
{
int x = row_number + 1;
string satir_no = x.ToString();
sheet1.Cells[1][row_number + 2] = satir_no;
sheet1.Cells[2][row_number + 2] = txt_LRU;
sheet1.Cells[3][row_number + 2] = txt_parcano;
sheet1.Cells[4][row_number + 2] = txt_yi;
sheet1.Cells[5][row_number + 2] = txt_acikislem;
sheet1.Cells[7][row_number + 2] = txt_td;
sheet1.Cells[8][row_number + 2] = txt_toptarih;
sheet1.Cells[9][row_number + 2] = txt_bastarih;
sheet1.Cells[10][row_number + 2] = txt_teslimtarih;
sheet1.Cells[11][row_number + 2] = txt_ilgilinot;
}
//to save and close the excel file
uyg.DisplayAlerts = false;
kitap.Save();
kitap.Close();
uyg.DisplayAlerts = true;
uyg.Quit();
DialogResult dialogResult2 = MessageBox.Show("Would you like to see the excel file?", "Bilgilendirme", MessageBoxButtons.YesNo);
if (dialogResult2 == DialogResult.Yes)
{
Process.Start(@"C:\\Users\\casperpc\\Desktop\\hey.xls");
}
else if (dialogResult2 == DialogResult.No)
{
}
}