C# 将值传递给处理程序

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;
    }                        
}

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();
}

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
        }
    }

现在，我想创建更多打开同一文件对话框的按钮。问题是我想将openFileDialog目录传递给不同的文本框。逻辑是这样的：

如果我用按钮1打开，将值传递给textbox1， 如果我用按钮2打开，将值传递给textbox2， 如果我用按钮3打开，将值传递给textbox3

所以我想创建int-check（1，2，3），所以当我按下按钮1时，它会将check=1传递给OpenDialog1\u文件OK，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，如果可能的话。另外，如果还有其他解决方案，请编写。

您可以使用一个专用字段，在该字段中临时保存

文本框的文本，并在单击事件中部署它，如下所示：

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;
    }                        
}

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();
}

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
        }
    }

然后使用
按钮
进行选择

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


}

首先，您可以像这样使用openfiledialog，而无需为其处理一个全新的函数：

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

其次，为了实现目标，您必须确保控件的名称正好以您想要的数字结尾（例如“button1”和“textbox1”）。然后你可以这样做：

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;
    }                        
}

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();
}

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
        }
    }

您想在哪里使用文本框中的文本？@MongZhu nowhere，只需显示OK，那么您想在哪里显示它？以相同的
形式
？或者在
OpenfileDialog
？@sowjanyaattaluri我知道，请再次阅读我的问题。我知道如何使用相同的处理程序，但我需要处理程序的操作依赖于调用的按钮it@MongZhu在同样的形式中，这是我想到的解决方案之一，但我认为有更有效的方法来做，而不是声明全局变量。不管怎样，谢谢你。@Pacijent我很肯定有。只晚了一秒钟。你还是可以看一看。我刚刚又读了一遍你的问题，我的答案似乎不太正确。您不想将结果值从
OpenFileDialog
传递到相应的
文本框中吗？@Pacijent我编辑了我的答案。现在它更接近你的想法了吗？就个人而言，我喜欢D.彼得罗夫建议的答案。是的，我从一开始就这样做了。对代码做了一点修改，它工作正常。彼得罗夫也是一个很好的解决方案。目前我正在做另一个解决方案，因为我知道现在做的逻辑，所以我会在完成后发布它。但如果我这样做，如果扩展不成功，我就不能取消事件。fdbYou可以始终将检查置于代码之上，伙计。这很简单，只要用一个简单的
返回
，你就可以告诉你的代码，如果你的第一次检查没有完成，就不要再执行了。