Question

我正在执行以下请求。

用户选择ComboBox中的项目。
SelectedIndexChanged事件处理代码根据ComboBox的选定值格式化某些单元格。但是，它不起作用。

void Combobox1_OnSelectedIndexChanged(object sender, ...)
{
    foreach (DataGridViewRow row in GridView1.Rows)
    {
        var c = GridView1.Columns.Count;
        for (int i = 0; i < c; i++)
        {
            if (...some condition using selected value...) 
            {
                 row.Cells[i].Style.BackColor = Color.Green;
                 row.Cells[i].ToolTipText = "test";
            }
        }
    }

问题：是否应将其添加到事件CellFormatting，..事件中？但是，算法取决于组合框SelectedIndexChanged的事件？

Answer 1

在CellFormatting事件中尝试此操作..

Foreach循环

   DataGridViewTextBoxCell txt = new DataGridViewTextBoxCell();
   txt.Value = row.Cells[i].Value
   txt.ToolTipText = "test";
   txt.BackColor = Color.Green;
   row.Cells[i] = txt;

Answer 2

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {

            var c = dataGridView1.Columns.Count;
             foreach (DataGridViewRow row in this.dataGridView1.Rows)
                {
                    if (comboBox1.SelectedValue==1){
                                row.Cells[0].Style.BackColor = Color.Green;
                                row.Cells[0].ToolTipText = "test";
                        }

            else
            {
                        row.Cells[0].Style.BackColor = Color.Blue;
                        row.Cells[0].ToolTipText = "test";
                }
            }
    }

Thanks

触发从组合框的SelectedIndexChanged事件格式化DataGridView的单元格？

2 个答案: