我正在以编程方式向ASP.NET WebForm添加复选框。我想迭代Request.Form.Keys并获取复选框的值。 ASP.NET复选框没有值属性。
如何设置value属性,以便当我遍历Request.Form.Keys时,我得到一个比默认值“on”更有意义的值。
将复选框添加到页面的代码:
List<string> userApps = GetUserApplications(Context);
Panel pnl = new Panel();
int index = 0;
foreach (BTApplication application in Userapps)
{
Panel newPanel = new Panel();
CheckBox newCheckBox = new CheckBox();
newPanel.CssClass = "filterCheckbox";
newCheckBox.ID = "appSetting" + index.ToString();
newCheckBox.Text = application.Name;
if (userApps.Contains(application.Name))
{
newCheckBox.Checked = true;
}
newPanel.Controls.Add(newCheckBox);
pnl.Controls.Add(newPanel);
index++;
}
Panel appPanel = FindControlRecursive(this.FormViewAddRecordPanel, "applicationSettingsPanel") as Panel;
appPanel.Controls.Add(pnl);
从Request.Form中检索复选框值的代码:
StringBuilder settingsValue = new StringBuilder();
foreach (string key in Request.Form.Keys)
{
if (key.Contains("appSetting"))
{
settingsValue.Append(",");
settingsValue.Append(Request.Form[key]);
}
}
答案 0 :(得分:16)
InputAttributes.Add()!
以下方法不起作用,因为“CheckBox控件不会呈现属性值(它实际上在渲染事件阶段[]中删除了属性]。”:
newCheckBox.Attributes.Add("Value", application.Name);
解决方案:
newCheckBox.InputAttributes.Add("Value", application.Name);
感谢Dave Parslow的博文:Assigning a value to an ASP.Net CheckBox