如何从另一个表单更新datagridview

本文关键字:更新 datagridview 表单 另一个 | 更新日期: 2023-09-27 18:10:03

我有两种形式:ProductSelectionFormQuantityPriceForm

ProductSelection表单包含一个3列的datagridview (

)
  • 产品名称
  • 价格

我从getQuantityPrice表单中取出Quantityprice,其中包含2个文本框用于上述值。

到目前为止,我已经完成了以下代码:

Productselection Form:

 public void getQuanPrice() // call getQuantityPrice form
    {
       QuantityPriceForm obj = new QuantityPriceForm(this);
        obj.ShowDialog();
    }

getQuantityPrice Form:

ProductSelection form1; // public initialization
public QuantityPriceForm(ProductSelection form_1)
    {
        InitializeComponent();
        form1 = form_1;
    }
   private void button1_Click(object sender, EventArgs e)
    {
        DialogResult saveData = MessageBox.Show("Do you want to save the data?",
      "Save Data",
      MessageBoxButtons.YesNo,
      MessageBoxIcon.Question);
        if (saveData == DialogResult.Yes)
        {
            form1.dgvProducts.CurrentRow.Cells[2].Value = quant;
            form1.dgvProducts.CurrentRow.Cells[3].Value = agreePrice;
            this.Close();
        }
    }

数据网格视图不更新表单1中的数量和价格列。我做错了什么?

如何从另一个表单更新datagridview

机会是,您的产品选择表单仍然有DataGridView控件dgvProducts设置为Private(默认)。

你可以将它设置为public,这样你的子窗体就可以访问它了,但这是很糟糕的样式。

相反,将参数传递给子表单,并在成功时读取它们:

产品选择表:

 public void getQuanPrice() // call getQuantityPrice form
 {
    QuantityPriceForm obj = new QuantityPriceForm(this);
    obj.quant = (int)dgvProducts.CurrentRow.Cells[2].Value;
    obj.agreePrice = (double)dgvProducts.CurrentRow.Cells[3].Value;
    if (obj.ShowDialog() == DialogResult.OK)
    {
      dgvProducts.CurrentRow.Cells[2].Value = obj.quant;
      dgvProducts.CurrentRow.Cells[3].Value = obj.agreePrice;
    }
 }

现在,在getQuantityPrice Form中,您需要创建这两个公共属性:

// ProductSelection form1; (you don't need this)
public QuantityPriceForm()
{
  InitializeComponent();
}
public int quant {
  get { return (int)txtQuantity.Text; }
  set { txtQuantity.Text = value.ToString(); }
}
public int agreePrice {
  get { return (double)txtAgreePrice.Text; }
  set { txtAgreePrice.Text = value.ToString(); }
}
private void button1_Click(object sender, EventArgs e)
{
  DialogResult saveData = MessageBox.Show("Do you want to save the data?",
    "Save Data",
    MessageBoxButtons.YesNo,
    MessageBoxIcon.Question);
  if (saveData == DialogResult.OK)
  {
    this.DialogResult = saveData;
    this.Close();
  }
}