C# 如何在DataGridView中使用验证
在我的程序中,当我单击DataGridView中的某一行时,如果该行包含C# 如何在DataGridView中使用验证,c#,datagridview,C#,Datagridview,在我的程序中,当我单击DataGridView中的某一行时,如果该行包含“\”,它应该会弹出一条错误消息,指出“\在名称或路径中是不允许的”。我不知道怎么做 代码如下: namespace OVF_ImportExport { public partial class Form1 : Form { string sName = ""; string sPath = ""; public Form1()
“\”
,它应该会弹出一条错误消息,指出“\在名称或路径中是不允许的”
。我不知道怎么做
代码如下:
namespace OVF_ImportExport
{
public partial class Form1 : Form
{
string sName = "";
string sPath = "";
public Form1()
{
InitializeComponent();
}
private void dataGridView1_CellMouseClick(object sender, DataGridViewCellMouseEventArgs e)
{
foreach (DataGridViewRow row in dataGridView1.SelectedRows)
{
sName = row.Cells[0].Value.ToString();
sPath = row.Cells[1].Value.ToString();
}
}
private void BtnCreate_Click(object sender, EventArgs e)
{
richTextBox1.Text = "";
StreamWriter file = new StreamWriter("Export.bat");
file.WriteLine("c: ");
file.WriteLine("cd \\");
file.WriteLine("cd Program Files ");
file.WriteLine("cd VMware");
file.WriteLine("cd VMware OVF Tool");
foreach (DataGridViewRow row in dataGridView1.SelectedRows)
{
sName = row.Cells[0].Value.ToString();
sName = sName.Trim();
sPath = row.Cells[1].Value.ToString();
file.WriteLine("start ovftool.exe --powerOffSource vi://" + TxtUsername.Text + ":" + TxtPassword.Text + "@"
+ TxtIP.Text + sPath + " " + "\"" + TxtBrowsepath.Text + "\\" + sName + "\\" + sName + ".ovf" + "\"" + Environment.NewLine);
}
file.WriteLine("pause");
MessageBox.Show("Batch File Created","Batch File");
file.Close();
}
尝试使用以下方法:
// Attach DataGridView events to the corresponding event handlers.
this.dataGridView1.CellValidating += new DataGridViewCellValidatingEventHandler(dataGridView1_CellValidating);
用于上述事件处理程序的方法:
private void dataGridView1_CellValidating(object sender,
DataGridViewCellValidatingEventArgs e)
{
// Validate the CompanyName entry by disallowing empty strings.
if (dataGridView1.Columns[e.ColumnIndex].Name == "CompanyName")
{
if (String.IsNullOrEmpty(e.FormattedValue.ToString()))
{
dataGridView1.Rows[e.RowIndex].ErrorText =
"Company Name must not be empty";
e.Cancel = true;
}
}
}
为什么您只想在单击行时标记此错误?如果行中不允许某些数据,那么为什么不在数据绑定之前清除这些数据呢?