传递值到处理器

Question

我有这样的代码：

private void button1_Click(object sender, EventArgs e) 
{ 
    openFileDialog1.ShowDialog(); 
} 
private void openFileDialog1_FileOk(object sender, CancelEventArgs e) 
{ 
    string ext = Path.GetExtension(openFileDialog1.FileName); 
    if(string.Compare(ext, ".FDB") == 0) 
    { 
     string fileName = openFileDialog1.SafeFileName; 
     string fileDirectory = Path.GetDirectoryName(openFileDialog1.FileName); 
     string databaseTxt = @"C:\Users\arist\AppData\Roaming\TDWork\"; 
     string[] database = { fileDirectory + fileName }; 
     if (Directory.Exists(databaseTxt)) 
     { 
      System.IO.File.WriteAllLines(databaseTxt + "databases.txt", database); 
     } 
     else 
     { 
      DirectoryInfo di = Directory.CreateDirectory(databaseTxt); 
      System.IO.File.WriteAllLines(databaseTxt + "databases.txt", database); 
     } 
    } 
    else 
    { 
     MessageBox.Show("Fajl koji ste izabrali nije Firebird baza (.FDB)"); 
     e.Cancel = true; 
    }       
} 

现在，我要创造更多的按钮，打开同一个文件对话框。问题是我想将openFileDialog目录传递给不同的文本框。因此，逻辑是这样的：

如果我和按钮1，通价值TextBox1中， 如果我BUTTON2开开，传递价值TextBox2中， 如果我BUTTON3打开，传递价值textbox3。所以我想创建int检查（1，2，3），所以当我按下button1时，它将check = 1传递给OpenDialog1_FileOk，所以我只是在那里切换并执行操作。

问题是我不知道如何将它传递给处理程序，如果这是可能的。如果还有其他解决方案，请写下来。

Answer 1

第一，你可以像这样使用你的openfiledialog，而不需要处理一个全新的函数：

if(openFileDialog1.ShowDialog() == DialogResult.OK){ 
    //...code 
} 

第二，为了您的目标，您必须确保您的控件名称完全以您想要的数字结尾（例如， “button1”和“textbox1”）。然后你可以这样做：

void Button1Click(object sender, EventArgs e) 
    { 

     //MessageBox.Show(bt.Name[bt.Name.Length - 1].ToString()); 
     if(openFileDialog1.ShowDialog() == DialogResult.OK) 
     { 

      if(!Path.GetExtension(openFileDialog1.FileName).EndsWith(".FDB")) //checking if the extension is .FDB (as you've shown in your example) 
      { 
       MessageBox.Show("Fajl koji ste izabrali nije Firebird baza (.FDB)"); 
       return; //return if it's not and no further code gets executed 
      } 

      string fileDirectory = Path.GetDirectoryName(openFileDialog1.FileName); //getting the directory 
      string nameOfMyButton = (sender as Button).Name; //you get the name of your button 
      int lastDigitOfMyName = Convert.ToInt16(Name[Name.Length - 1]); //returns the number of your button 
      TextBox neededTextboxToShowDirectory = this.Controls.Find("textbox" + lastDigitOfMyName, true).FirstOrDefault() as TextBox; //this will search for a control with the name "textbox1" 
      neededTextboxToShowDirectory.Text = fileDirectory; //you display the text 
      //... doing the rest of your stuff here 
     } 
    } 

Answer 2

你可以使用的保存位置暂时您TextBox的文本的私人领域，在这样的单击事件进行部署：

private int whichButton = 0; 

private void button1_Click(object sender, EventArgs e) 
{ 
    whichButton = 1; 
    openFileDialog1.ShowDialog(); 
} 


private void button2_Click(object sender, EventArgs e) 
{ 
    whichButton = 2; 
    openFileDialog1.ShowDialog(); 
} 


private void button3_Click(object sender, EventArgs e) 
{ 
    whichButton = 3; 
    openFileDialog1.ShowDialog(); 
} 

使用则whichButton选择

private void openFileDialog1_FileOk(object sender, CancelEventArgs e) 
{ 
    switch (whichButton) 
    { 
     .... 
    } 


}