我有更改datagridView中单元格的方法,并且当我重写text(String)时工作正常
但我希望例如重写电子邮件到空值,我不知道这是怎么做的。
我只能将电子邮件重写为另一封电子邮件(字符串到另一个字符串)
我改变细胞的方法是:
public void ChangeCellEmail(int col, string[] emails)
{
string sep = ";";
string text = "";
foreach (DataGridViewCell cell in dataGridView1.SelectedCells)
{
for (int i = 0; i < emails.Length ;i++)
{
if (emails[i].ToString().Trim() != "")
{
text = text + emails[i] + sep ;
dataGridView1.Rows[cell.RowIndex].Cells[col].Value = text;
}
}
}
}
我方法的调用代码是
string mail = txtBox1.Text;
string mail1 = txtBox2.Text;
string mail2 = txtBox3.Text;
string mail3 = txtBox4.Text;
string mail4 = txtBox5.Text;
string[] mails = new string[] { mail, mail1, mail2, mail3, mail4 };
frm1.ChangeCellEmail(2, mails);
this.Dispose();
感谢您的帮助。
答案 0 :(得分:1)
使用以下代码,我可以传递5个完整的电子邮件地址,其中部分/全部可能为“空”,tempVar
将始终包含正确的数据。
public Form1()
{
InitializeComponent();
const string mail = "First";
const string mail1 = "Second";
const string mail2 = "Third";
const string mail3 = "";
const string mail4 = "Fifth";
var mails = new string[] { mail, mail1, mail2, mail3, mail4 };
ChangeCellEmail(2, mails);
}
public void ChangeCellEmail(int col, string[] emails)
{
var sep = ";";
var text = "";
var tempVar = ""; //New temp variable (representing your dataGrid.value)
for (int emailList = 1; emailList < 5; emailList++)
{
for (var i = 0; i < emails.Length; i++)
{
if (emails[i].Trim() != "")
{
text = text + emails[i] + sep;
tempVar = text;
}
else
{
tempVar = string.Empty;
}
}
}
}
检查每个循环上的tempVar,你会看到我指的是什么。
答案 1 :(得分:0)
以下是建议的解决方案:
public void ChangeCellEmail(int emailColumnIndex, string[] emails)
{
var emailsAsCsv = string.Join(";", emails.Where(e => !string.IsNullOrWhiteSpace(e)));
foreach (DataGridViewCell cell in dataGridView1.SelectedCells)
{
dataGridView1.Rows[cell.RowIndex].Cells[emailColumnIndex].Value = emailsAsCsv;
}
}
这会使用以分号分隔的非空电子邮件列表更新所选单元格的Email
列。
用法:
var emailColumnIndex = 2; // The third column in the DataGridView (zero-indexed)
var emails = new[] {txtBox1.Text, txtBox2.Text, txtBox3.Text, txtBox4.Text, txtBox5.Text};
ChangeCellEmail(emailColumnIndex, emails);
希望这有帮助。