C# 如何在SaveFileDialog中处理结果 public void SaveAs() { 如果(dataGridView1.ColumnCount>=2) { SaveFileDialog SaveFileDialog=新建SaveFileDialog(); saveFileDialog.Filter=“Excel文件(*.xls)|*.xls”; saveFileDialog.FilterIndex=0; saveFileDialog.RestoreDirectory=true; saveFileDialog.CreatePrompt=true; saveFileDialog.Title=“将Excel文件导出到”; saveFileDialog.ShowDialog(); myStream; myStream=saveFileDialog.OpenFile(); StreamWriter sw=新的StreamWriter(myStream,System.Text.Encoding.GetEncoding(-0)); 字符串str=“”; 尝试 { for(int i=0;i0) { str+=“\t”; } str+=dataGridView1.Columns[i].HeaderText; } sw.WriteLine(str); 对于(int j=0;j
当我打开保存窗口并通过单击C# 如何在SaveFileDialog中处理结果 public void SaveAs() { 如果(dataGridView1.ColumnCount>=2) { SaveFileDialog SaveFileDialog=新建SaveFileDialog(); saveFileDialog.Filter=“Excel文件(*.xls)|*.xls”; saveFileDialog.FilterIndex=0; saveFileDialog.RestoreDirectory=true; saveFileDialog.CreatePrompt=true; saveFileDialog.Title=“将Excel文件导出到”; saveFileDialog.ShowDialog(); myStream; myStream=saveFileDialog.OpenFile(); StreamWriter sw=新的StreamWriter(myStream,System.Text.Encoding.GetEncoding(-0)); 字符串str=“”; 尝试 { for(int i=0;i0) { str+=“\t”; } str+=dataGridView1.Columns[i].HeaderText; } sw.WriteLine(str); 对于(int j=0;j,c#,dialog,C#,Dialog,当我打开保存窗口并通过单击取消决定不保存DataGridView1时,我发现一个错误索引超出了数组的边界。 myStream=saveFileDialog.OpenFile() 我不知道这里出了什么问题。您的罪犯代码在这里: public void SaveAs() { if(dataGridView1.ColumnCount>=2) { SaveFileDialog saveFileDialog = new SaveFileDia
取消决定不保存DataGridView1
时,我发现一个错误索引超出了数组的边界。
myStream=saveFileDialog.OpenFile()
我不知道这里出了什么问题。您的罪犯代码在这里:
public void SaveAs()
{
if(dataGridView1.ColumnCount>=2)
{
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.Filter = "Excel files (*.xls)|*.xls";
saveFileDialog.FilterIndex = 0;
saveFileDialog.RestoreDirectory = true;
saveFileDialog.CreatePrompt = true;
saveFileDialog.Title = "Export Excel File To";
saveFileDialog.ShowDialog();
Stream myStream;
myStream = saveFileDialog.OpenFile();
StreamWriter sw = new StreamWriter(myStream, System.Text.Encoding.GetEncoding(-0));
string str = "";
try
{
for (int i = 0; i < dataGridView1.ColumnCount; i++)
{
if (i > 0)
{
str += "\t";
}
str += dataGridView1.Columns[i].HeaderText;
}
sw.WriteLine(str);
for (int j = 0; j < dataGridView1.Rows.Count; j++)
{
string tempStr = "";
for (int k = 0; k < dataGridView1.Columns.Count; k++)
{
if (k > 0)
{
tempStr += "\t";
}
tempStr += dataGridView1.Rows[j].Cells[k].Value.ToString();
}
sw.WriteLine(tempStr);
}
sw.Close();
myStream.Close();
}
catch (Exception e)
{
// MessageBox.Show(e.ToString());
}
finally
{
sw.Close();
myStream.Close();
}
}
else
MessageBox.Show("No data to save", "OK",
MessageBoxButtons.OKCancel, MessageBoxIcon.Asterisk);
}
应该是这样的:
saveFileDialog.ShowDialog();
Stream myStream;
myStream = saveFileDialog.OpenFile();
如果您关闭对话框(通过“x”)或按“取消”,则您的saveFileDialog
中有一些“空”值,您可以尝试并引用这些值(这会给您带来错误)。您的罪魁祸首代码如下:
public void SaveAs()
{
if(dataGridView1.ColumnCount>=2)
{
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.Filter = "Excel files (*.xls)|*.xls";
saveFileDialog.FilterIndex = 0;
saveFileDialog.RestoreDirectory = true;
saveFileDialog.CreatePrompt = true;
saveFileDialog.Title = "Export Excel File To";
saveFileDialog.ShowDialog();
Stream myStream;
myStream = saveFileDialog.OpenFile();
StreamWriter sw = new StreamWriter(myStream, System.Text.Encoding.GetEncoding(-0));
string str = "";
try
{
for (int i = 0; i < dataGridView1.ColumnCount; i++)
{
if (i > 0)
{
str += "\t";
}
str += dataGridView1.Columns[i].HeaderText;
}
sw.WriteLine(str);
for (int j = 0; j < dataGridView1.Rows.Count; j++)
{
string tempStr = "";
for (int k = 0; k < dataGridView1.Columns.Count; k++)
{
if (k > 0)
{
tempStr += "\t";
}
tempStr += dataGridView1.Rows[j].Cells[k].Value.ToString();
}
sw.WriteLine(tempStr);
}
sw.Close();
myStream.Close();
}
catch (Exception e)
{
// MessageBox.Show(e.ToString());
}
finally
{
sw.Close();
myStream.Close();
}
}
else
MessageBox.Show("No data to save", "OK",
MessageBoxButtons.OKCancel, MessageBoxIcon.Asterisk);
}
应该是这样的:
saveFileDialog.ShowDialog();
Stream myStream;
myStream = saveFileDialog.OpenFile();
如果您关闭对话框(通过“x”)或按“取消”,则您的saveFileDialog
中有一些“空”值,您可以尝试并引用这些值(这会给您带来错误)。该函数返回一个对话框结果
,以确定采取了哪些操作。在继续之前,只需检查返回值即可。例如:
if (saveFileDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK) {
// code here for user pressing OK instead of the 'X' or 'Cancel'
Stream myStream = saveFileDialog.OpenFile();
}
函数返回一个对话框result
,以确定采取了什么操作。在继续之前,只需检查返回值即可。例如:
if (saveFileDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK) {
// code here for user pressing OK instead of the 'X' or 'Cancel'
Stream myStream = saveFileDialog.OpenFile();
}