I have on a ASPX-WebForm in Classic ASP a GridView with Customer-Informations for CSV-Export.
In this GridView i have in TemplateField a Checkbox for Selection by the User. In CodeBehind on ClickEvent I go with ForEach-Loop through the Rows of the GridView and want to check the self-generated (data comes not from database) Checkbox if checked. With FindCOntrol i unbox the Checkbox and up to there is everything allright. But every Checkbox is NOT checked although it is checked on the Webform.
Can anyone tell me what I´m doing wrong?
ASPX:
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridViewAdressen" runat="server" AutoGenerateColumns="false" DataKeyNames="order_id" EnablePersistedSelection="true" style="width:100%;" PagerSettings-Mode="Numeric">
<Columns>
<asp:TemplateField HeaderText="Auswahl">
<ItemTemplate>
<input type="checkbox" name="chkSelect" runat="server"/>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField HeaderText="ID" DataField="order_id"/>
<asp:BoundField HeaderText="Zeit" DataField="zeitpunkt"/>
<asp:BoundField HeaderText="Preis" DataField="preis"/>
<asp:BoundField HeaderText="Name" DataField="name"/>
<asp:BoundField HeaderText="Nick" DataField="username"/>
</Columns>
</asp:GridView>
<asp:Button Text="CSV erstellen" runat="server" OnClick="Unnamed_Click"/>
</div>
</form>
CodeBehind:
protected void Page_Load(object sender, EventArgs e)
{
if (Request.QueryString["security"] != null && Request.QueryString["security"] == token.seitenSicherheit)
{
// Anzahl Adressen
string menge = "10";
if(Request.QueryString["menge"] != null)
{
menge = Request.QueryString["menge"];
}
DataTable table = new DataTable();
using (OdbcConnection connection = new OdbcConnection(ConfigurationManager.ConnectionStrings["MySQLConnStr"].ConnectionString))
{
connection.Open();
using (OdbcCommand command = new OdbcCommand("SELECT * FROM bestellvorgang order by zeitpunkt desc limit " + menge, connection))
{
using(OdbcDataAdapter ad = new OdbcDataAdapter(command))
{
ad.Fill(table);
}
}
}
GridViewAdressen.DataSource = table;
GridViewAdressen.DataBind();
}
else
{
Response.Write("Keine Zugangsberechtigung");
}
}
protected void Unnamed_Click(object sender, EventArgs e)
{
// string für csv erstellen
// Grid View durchlaufen und checkBox prüfen
foreach (GridViewRow row in GridViewAdressen.Rows)
{
HtmlGenericControl chk = (HtmlGenericControl)row.FindControl("chkSelect");
if(chk.Checked)
{
// Abfrage für den order_id
Response.Write("Order-ID: " + GridViewAdressen.DataKeys[row.RowIndex].Value);
}
}
}
UNBOXING WITH FINDCONTROL IS NOT NULL, BUT NEVER CHECKED !!!!!!!
Alternatively i have tried to use Html-input Checkbox but thats always NULL when use FindControl und unbox as HtmlGenericControl ....
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