如何设置DataGridViewTextBoxColumn的Password属性 [英] How to set Password property for DataGridViewTextBoxColumn

问题描述

我使用 DataGridView 来实现用户名密码UI。密码显示在 DataGridViewTextBoxColumn 类型列中。如何使用现有代码 DataGridViewTextBoxColumn 并为文本实现password属性？

I have used DataGridView to implement username-password UI. The passwords are shown in DataGridViewTextBoxColumn type column. How can I use the existing code for DataGridViewTextBoxColumn and implement password property for the text?

推荐答案

处理 EditingControlShowing 事件，然后将编辑控件转换为 TextBox 并手动将 UseSystemPasswordChar 设置为true：

Handle the EditingControlShowing event and then cast the editing control to a TextBox and manually set the UseSystemPasswordChar to true:

TextBox passwordText = e.Control as TextBox;
if (passwordText != null)
{
    passwordText.UseSystemPasswordChar = true;
}

编辑

你可以试试这个：

Edit

Could you try this :

private void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
{
    if (dataGridView1.Columns[e.ColumnIndex].Name == "passwordDataGridViewTextBoxColumn" && e.Value != null)
    {
        dataGridView1.Rows[e.RowIndex].Tag = e.Value;
        e.Value = new String(‘*’, e.Value.ToString().Length);
    }
}
private void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
{
    if (dataGridView1.CurrentRow.Tag != null)
        e.Control.Text = dataGridView1.CurrentRow.Tag.ToString();
}

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