c# - 在编辑时只允许在 gridviewcell 中输入数字

Question

我的 C# windows 应用程序中有一个 gridview ......它允许被编辑，我想要一个特殊的单元格（名为“Price”）来只允许按键上的数字......我使用下面的代码用于 texboxes 只允许数字。 .. 在哪个网格视图事件中我应该编写这段代码？

     private void txtJustNumber_KeyPress(object sender, KeyPressEventArgs e)
    {
        if (!char.IsDigit((char)(e.KeyChar)) &&
            e.KeyChar != ((char)(Keys.Enter)) &&
            (e.KeyChar != (char)(Keys.Delete) || e.KeyChar == Char.Parse(".")) &&
            e.KeyChar != (char)(Keys.Back))
        {
            e.Handled = true;
        }
    }

Answer 1

You can use CellValidating event of DataGridView.


private void dataGridView1_CellValidating(object sender,
        DataGridViewCellValidatingEventArgs e)
    {
        // Validate the Price entry.
        if (dataGridView1.Columns[e.ColumnIndex].Name == "Price")
        {
        }
    }

Answer 2

thx伙计们......我使用了下面的代码，我的问题解决了......

    public Form1()
    {
        InitializeComponent();
        MyDataGridViewInitializationMethod();
    }

    private void MyDataGridViewInitializationMethod()
    {
        gvFactorItems.EditingControlShowing +=
            new DataGridViewEditingControlShowingEventHandler(gvFactorItems_EditingControlShowing);
    }

    private void gvFactorItems_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
    {
        e.Control.KeyPress += new KeyPressEventHandler(Control_KeyPress); ;
    }

    private void Control_KeyPress(object sender, KeyPressEventArgs e)
    {

        if (!char.IsDigit((char)(e.KeyChar)) &&
            e.KeyChar != ((char)(Keys.Enter)) &&
            (e.KeyChar != (char)(Keys.Delete) || e.KeyChar == Char.Parse(".")) &&
            e.KeyChar != (char)(Keys.Back))
        {
            e.Handled = true;
        }
    }

Answer 3

我认为你应该看看这个，它会有所帮助:-

DataGridView keydown 事件在 C# 中不起作用