Question

我正在尝试检查DataGridView上是否选择了任何行。问题是当我尝试执行下面的行时。我怎么能解决这个问题？

＆＃xA;＆＃xA;

尝试这个

＆＃xA;＆＃xA;

  private void btnExcluir_Click（object sender，EventArgs e ）{＆＃xA; int row = gridUsuarios.CurrentRow.Index;＆＃xA; Console.WriteLine（行）;＆＃XA; }＆＃XA;

＆＃XA;＆＃XA;  例外 
＆＃XA;＆＃XA;

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＆＃ XA;

Answer 1

您可以使用SelectedRows属性进行验证。

if( gridUsuarios.SelectedRows != null && gridUsuarios.SelectedRows.Count > 0 )
{
    // logic.
}

Answer 2

@HariPrasad的答案是正确的，但效率低下。即使您只想知道是否选择了至少一个并且行变为非共享（see），它也会使用Count。如果您将DataGridView子类化（我建议您在项目中使用的每个组件），您可以创建此属性：

[Browsable(false)]
public bool SelectedOneOrMore
{
    get
    {
        return Rows.GetFirstRow(DataGridViewElementStates.Selected) != -1;
    }
}

如何检查DataGridView上是否选择了任何行？

2 个答案: