如何通过单击按钮将选定的gridview值显示到文本框中 [英] Howdo I display selected gridview value into textbox by clicking button

问题描述

我有一个datagridview，其中包含来自excel文件的一些数据。

我希望能够使用我单击按钮时当前选择的单元格填充文本框。

我尝试过以下方法，但未找到方法做到这一点。

 private void btnGetValue_Click（object sender，EventArgs e）
 {
 
 txtField1.Text = dataGridView1.Rows [e.RowIndex] .Cells [e.ColumnIndex] .Value.ToString（）; 
} 
 

我尝试过：



txtField1.Text = dataGridView1.Rows [e.RowIndex] .Cells [e.ColumnIndex] .Value.ToString（）;

解决方案

如果您只使用单一选择，请确保在DataGridView上设置模式：

 dataGridView1.SelectionMode = DataGridViewSelectionMode.CellSelect; 

现在，您可以使用 dataGridView 控件的 SelectedCells 属性：

  private   void  btnGetValue_Click（< span class =code-keyword> object  sender，System.EventArgs e）
 {
  var  selectedcell = dataGridView1.SelectedCells ？。计数==  1  
？ dataGridView1.SelectedCells [ 0 ] 
： null ; 
 
  if （selectedcell！=  null ）
 {
  //  对所选单元格执行某些操作...  
} 
 } 

I have a datagridview that gets populated with some data from an excel file.
I want to be able to populate a textbox with the cell that I have currently selected when I click the button.
I have tried the following but have been unsuccessful in finding a way to do this.

private void btnGetValue_Click(object sender, EventArgs e)
       {

           txtField1.Text = dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Value.ToString();
       }

What I have tried:

txtField1.Text = dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Value.ToString();

解决方案

If you are only working with single selection make sure that you set the mode on the DataGridView:

dataGridView1.SelectionMode = DataGridViewSelectionMode.CellSelect;

Now, you can work with the SelectedCells property of the dataGridView control:

private void btnGetValue_Click(object sender, System.EventArgs e)
{
    var selectedcell = dataGridView1.SelectedCells?.Count == 1
                           ? dataGridView1.SelectedCells[0]
                           : null;

    if (selectedcell != null)
    {
        // do something with the selected cell...
    }
}

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