我有8个ComboBox，它们具有类似的SelectedIndexChanged块，其中存储着List和string的{{1}}。
combobox这些是我活动的3个示例块，还有5个具有相同块但排列不同的示例。存储的private void cmbPItem_SelectedIndexChanged(object sender, EventArgs e)
{
List<string> srchtxt = new List<string> { "Item", "Brand", "Part No.", "Description", "Manufacturer", "Car", "Year", "Made In", cmbPItem.Text };
List<ComboBox> cmb = new List<ComboBox> { cmbPBrand, cmbPPart, cmbPDesc, cmbPMan, cmbPCar, cmbPYr, cmbPMade };
cmbValue(srchtxt, cmb);
}
private void cmbPBrand_SelectedIndexChanged(object sender, EventArgs e)
{
List<string> srchtxt = new List<string> { "Brand", "Item", "Part No.", "Description", "Manufacturer", "Car", "Year", "Made In", cmbPBrand.Text };
List<ComboBox> cmb = new List<ComboBox> { cmbPItem, cmbPPart, cmbPDesc, cmbPMan, cmbPCar, cmbPYr, cmbPMade };
cmbValue(srchtxt, cmb);
}
private void cmbPPart_SelectedIndexChanged(object sender, EventArgs e)
{
List<string> srchtxt = new List<string> { "Part No.", "Item", "Brand", "Description", "Manufacturer", "Car", "Year", "Made In", cmbPPart.Text };
List<ComboBox> cmb = new List<ComboBox> { cmbPItem, cmbPBrand, cmbPDesc, cmbPMan, cmbPCar, cmbPYr, cmbPMade };
cmbValue(srchtxt, cmb);
}
必须以正确的顺序传递到List函数中。
现在我使用if语句将其更改为单个事件
cmbValue有没有一种方法可以简化它，使其更整齐，更易于阅读。由于可以添加更多private void combobox_SelectedIndexChanged(object sender, EventArgs e)
{
if (cmbPItem.SelectedIndex != -1)
{
List<string> srchtxt = new List<string> { "Item", "Brand", "Part No.", "Description", "Manufacturer", "Car", "Year", "Made In", cmbPItem.Text };
List<ComboBox> cmb = new List<ComboBox> { cmbPBrand, cmbPPart, cmbPDesc, cmbPMan, cmbPCar, cmbPYr, cmbPMade };
cmbValue(srchtxt, cmb);
}
if (cmbPBrand.SelectedIndex != -1)
{
List<string> srchtxt = new List<string> { "Brand", "Item", "Part No.", "Description", "Manufacturer", "Car", "Year", "Made In", cmbPBrand.Text };
List<ComboBox> cmb = new List<ComboBox> { cmbPItem, cmbPPart, cmbPDesc, cmbPMan, cmbPCar, cmbPYr, cmbPMade };
cmbValue(srchtxt, cmb);
}
if (cmbPPart.SelectedIndex != -1)
{
List<string> srchtxt = new List<string> { "Part No.", "Item", "Brand", "Description", "Manufacturer", "Car", "Year", "Made In", cmbPPart.Text };
List<ComboBox> cmb = new List<ComboBox> { cmbPItem, cmbPBrand, cmbPDesc, cmbPMan, cmbPCar, cmbPYr, cmbPMade };
cmbValue(srchtxt, cmb);
}
if (cmbPDesc.SelectedIndex != -1)
{
List<string> srchtxt = new List<string> { "Description", "Item", "Brand", "Part No.", "Manufacturer", "Car", "Year", "Made In", cmbPDesc.Text };
List<ComboBox> cmb = new List<ComboBox> { cmbPItem, cmbPBrand, cmbPPart, cmbPMan, cmbPCar, cmbPYr, cmbPMade };
cmbValue(srchtxt, cmb);
}
if (cmbPMan.SelectedIndex != -1)
{
List<string> srchtxt = new List<string> { "Manufacturer", "Item", "Brand", "Part No.", "Description", "Car", "Year", "Made In", cmbPItem.Text };
List<ComboBox> cmb = new List<ComboBox> { cmbPItem, cmbPBrand, cmbPPart, cmbPDesc, cmbPCar, cmbPYr, cmbPMade };
cmbValue(srchtxt, cmb);
}
if (cmbPCar.SelectedIndex != -1)
{
List<string> srchtxt = new List<string> { "Car", "Item", "Brand", "Part No.", "Description", "Manufacturer", "Year", "Made In", cmbPCar.Text };
List<ComboBox> cmb = new List<ComboBox> { cmbPItem, cmbPBrand, cmbPPart, cmbPDesc, cmbPMan, cmbPYr, cmbPMade };
cmbValue(srchtxt, cmb);
}
if (cmbPYr.SelectedIndex != -1)
{
List<string> srchtxt = new List<string> { "Year", "Item", "Brand", "Part No.", "Description", "Manufacturer", "Car", "Made In", cmbPYr.Text };
List<ComboBox> cmb = new List<ComboBox> { cmbPItem, cmbPBrand, cmbPPart, cmbPDesc, cmbPMan, cmbPCar, cmbPMade };
cmbValue(srchtxt, cmb);
}
if (cmbPMade.SelectedIndex != -1)
{
List<string> srchtxt = new List<string> { "Made In", "Item", "Brand", "Part No.", "Description", "Manufacturer", "Car", "Year", cmbPMade.Text };
List<ComboBox> cmb = new List<ComboBox> { cmbPItem, cmbPBrand, cmbPPart, cmbPDesc, cmbPMan, cmbPCar, cmbPYr };
cmbValue(srchtxt, cmb);
}
}
答案 0 :(得分：0)
您可以使用 /* unvisited link */
a:link {
color: red;
}
/* visited link */
a: visited {
color: green;
}
/* mouse over link */
a:hover {
color: pink;
}
/* selected link */
a:active {
color: blue;
}
对象来确定哪个组合框触发了事件。另外，您可以使用元组和LINQ进行很多清理：
sender答案 1 :(得分：0)
我会将所有组合框放在一个列表中，并将其存储在from的成员变量中。
然后，您可以将srchtxt中的名称放入comboboxes Tag属性。
然后循环遍历所有组合框，并使用new ComboBox[] { current }.Union(comboboxes.Where(x => x != current)).Select(x => x.Tag as string).Union(new string [] { current.Text }).ToList()生成srchtxt，您将获得一个列表，该列表看起来与您在帖子中使用硬编码创建的列表非常相似。