我根据页面的 id 号从数据库中获取一些记录,将显示的记录数量会有所不同,从 1 条记录到 50 条记录。我需要获取这些记录,然后选择要修改、删除的记录,或者根本不会改变。我希望它看起来像这样:
无法使用stackoverflow图像上传器显示图像,所以在这里:https ://dl.dropboxusercontent.com/u/9446763/code/dropdownlist.jpg
如果选择了“无更改”或“删除”,我希望禁用文本字段,如果选择了“修改”选项,我希望启用修改的字段。
以下是我到目前为止所拥有的,我正在努力的部分是 selectedindex 更改我不知道如何对其进行编码,以便在下拉框中选择 Modify 时,启用相应的文本框。
ASPX 页面
<asp:PlaceHolder ID="PlaceHolder1" runat="server"></asp:PlaceHolder>
客户服务页面
private void createControls()
{
var id = Request.Params["ID"];
System.Data.OleDb.OleDbConnection pcn;
System.Data.OleDb.OleDbCommand pcm;
System.Data.OleDb.OleDbDataReader prs;
pcn = new System.Data.OleDb.OleDbConnection("");
pcm = new System.Data.OleDb.OleDbCommand();
pcn.Open();
pcm.Connection = pcn;
var tableSql = @"select * FROM grouplist where ptid = '" + id + "'";
pcm.CommandText = tableSql;
prs = pcm.ExecuteReader();
var rowcount = 0;
while (prs.Read())
{
rowcount++;
PlaceHolder1.Controls.Add(new Literal() { Text = "<div class='row'><div class='span3'>" });
TextBox tx = new TextBox();
tx.ID = "txtData" + rowcount.ToString();
tx.Text = prs["name"].ToString().Trim();
tx.Width = 200;
tx.CssClass = "span2";
tx.Enabled = false;
PlaceHolder1.Controls.Add(tx);
PlaceHolder1.Controls.Add(new Literal() { Text = "</div><div class='span2'>" });
TextBox txa = new TextBox();
txa.ID = "amtData" + rowcount.ToString();
txa.Text = prs["amt"].ToString();
txa.CssClass = "span2";
txa.Enabled = false;
PlaceHolder1.Controls.Add(txa);
PlaceHolder1.Controls.Add(new Literal() { Text = "</div><div class='span3'>" });
DropDownList ddl = new DropDownList();
ddl.Items.Add("No Change");
ddl.Items.Add("Modify");
ddl.Items.Add("Remove");
ddl.Width = 200;
ddl.CssClass = "span2";
ddl.SelectedIndexChanged += new EventHandler(ddl_SelectedIndexChanged);
ddl.AutoPostBack = true;
ddl.ID = "ddlData" + rowcount.ToString();
PlaceHolder1.Controls.Add(ddl);
PlaceHolder1.Controls.Add(new Literal() { Text = "</div></div>" });
}
prs.Close();
}
void ddl_SelectedIndexChanged(object sender, EventArgs e)
{
}