DataGridView多个选择到文本框用逗号 [英] DataGridView Multiple selection to textbox with comma

问题描述

请帮我用逗号将datagridview多个选择添加到文本框，如果我选择多行，我仅将一行列添加到文本框，以下是我到目前为止已完成的代码..

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Hi, please help me on getting datagridview multiple selection to textbox with comma, if i select multiple row i am getting only one rows column to textbox, below is code which i have done so far..

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private void btnUpdate_Click(object sender, EventArgs e)
        {
            foreach (DataGridViewRow drv in dataGridView1.SelectedRows)
            {
                textBox1.Text = "";
                bool val = true;
                if (dataGridView1.SelectedRows != null)
                {
                    if (!firstvalue)
                    {
                        textBox1.Text = ",";
                    }
                    textBox1.Text = textBox1.Text + dataGridView1.SelectedCells[1].Value.ToString();
                    val = false;
                }
            }
        }

推荐答案

您正在重置文本，而不是在if循环中添加逗号.您在if块中的代码应该是.

You are resetting the text instead of appending the comma in the if loop. Your code in the if block should be.

if (!firstvalue)
{
     textBox1.Text += ",";
}

更新SM:
试试:

UPDATE SM:
Try:

if (!firstvalue)
{
   textBox1.Text += "," + dataGridView1.SelectedCells[1].Value.ToString();
}

更新#2 Tarak:
另一个问题是您要为每一行重置textBox1.Text =".您必须将其移出foreach.另外，您还需要使用drv并从中获取值.

Update #2 Tarak:
Another problem is you are resetting the textBox1.Text = "" for each of the row. You have to move it out of the foreach. Also you need to use the drv and get the value from that.

private void btnUpdate_Click(object sender, EventArgs e)
{
   if (dataGridView1.SelectedRows != null)
   {
       textBox1.Text = "";
       bool firstvalue = true;
       foreach (DataGridViewRow drv in dataGridView1.SelectedRows)
       {      
          if (!firstvalue)
          {
             textBox1.Text += ",";
          }
          textBox1.Text += drv.Cells[1].Value.ToString();
          firstvalue = false;
      }
   }
}

foreach (DataGridViewRow row in dataGridView1.SelectedRows)
{
        //Column Num represents col names
    MessageBox.Show(row.Cells[1].Value.ToString());
//////////////The 1 Represent the grid column you want the data from

}

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