我正在为自己创建一个小网站，在这个网站中你可以创建用户。添加用户的那一刻，它就会进入数据库。您还可以在gridview中查看现有用户，因此当您创建新用户时，它会进入gridview。但是一个小问题，当我尝试在此gridview中使用验证器时，它会验证每一行。我需要它来验证一行。有人说行ID，但我不知道如何做到这一点。
正如你所看到的，我已经尝试过RowIndex的一些东西，但是无法让它工作
感谢任何帮助 Management.Aspx：
<asp:GridView runat="server" ID="gridUsers" AutoGenerateColumns="False" DataKeyNames="username" DataSourceID="DSUserList" OnRowCommand="gridUsers_RowCommand">
<Columns>
<asp:BoundField DataField="username" HeaderText="Gebruikersnaam" ReadOnly="True" SortExpression="username"></asp:BoundField>
<asp:BoundField DataField="display_name" HeaderText="Naam" SortExpression="display_name"></asp:BoundField>
<asp:TemplateField >
<ItemTemplate>
<asp:Button OnClientClick="ConfirmDeleteAdmin()" Text="Verwijderen" runat="server" id="btnDeleteUser" CommandName="delUser" CommandArgument="<%# ((GridViewRow) Container).RowIndex %>"/>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:TextBox runat="server" id="txtChangePassword" />
<%-- TODO: Mike: Validators via code --%>
<asp:Button OnClientClick="ConfirmChangePassword()" ValidationGroup="vgChangePW" Text="Wachtwoord wijzigen" runat="server" ID="btnChangePassword" CommandName="changePassword" CommandArgument="<%# ((GridViewRow) Container).RowIndex %>" />
<%-- <asp:RequiredFieldValidator ID="rfChangePassReq" ControlToValidate="<%# String.Format("txtChangePW{0}",((GridViewRow) Container).RowIndex).ToString() %>" ValidationGroup="vgChangePW" runat="server" ErrorMessage="<br/>U heeft geen nieuw wachtwoord ingevoerd"></asp:RequiredFieldValidator>--%>
<%-- asp:RegularExpressionValidator ID="rfChangePassReg" ValidationExpression="^(?=.*[A-Z])(?=.*\d)[a-zA-Z\d]{8,}$" ControlToValidate="<%# String.Format("txtChangePW{0}",((GridViewRow) Container).RowIndex).ToString() %>" ValidationGroup="vgChangePW" runat="server" ErrorMessage="<br/>Uw wachtwoord moet uit minimaal 6 tekenen bestaan en moet minimaal 1 hoofdletter en 1 cijfer bevatten"></asp:RegularExpressionValidator>--%>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
Management.aspx.cs：
protected void btnCreateUser_Click(object sender, EventArgs e)
{
try {
connection.Open();
} catch (Exception) {}
String password = txtPassword.Text.Trim();
password = password != "" ? ProjectManager.GetSHA1HashData(password) : "";
cmd.CommandType = CommandType.StoredProcedure;
cmd.Connection = connection;
cmd.CommandText = "sp_add_user";
cmd.Parameters.Add("@username", SqlDbType.NVarChar, 100).Value = txtUsername.Text;
cmd.Parameters.Add("@password", SqlDbType.NVarChar, 100).Value = password;
cmd.Parameters.Add("@displayName", SqlDbType.NVarChar, 100).Value = txtDisplayName.Text;
cmd.Parameters.Add("@return_value", SqlDbType.Int).Direction = ParameterDirection.ReturnValue;
cmd.ExecuteNonQuery();
int code = int.Parse(cmd.Parameters["@return_value"].Value.ToString());
if (code == 0)
{
lblNewUserStatus.Text = "Gebruiker bestaat al";
lblNewUserStatus.ForeColor = Color.Red;
}
else
{
DSUserList.EnableCaching = false;
gridUsers.DataBind();
DSUserList.EnableCaching = true;
lblNewUserStatus.Text = "Gebruiker toegevoegd";
lblNewUserStatus.ForeColor = Color.Black;
txtUsername.Text = "";
txtPassword.Text = "";
txtDisplayName.Text = "";
}
connection.Close();
}
protected void gridUsers_RowCommand(object sender, GridViewCommandEventArgs e)
{
// Deletes user or changes a password of a user
if (e.CommandName == "delUser")
{
string confirmValue = Request.Form["delete_admin"];
if (confirmValue == "Yes") {
int index = Convert.ToInt32(e.CommandArgument);
GridViewRow row = gridUsers.Rows[index];
String usernameToDelete = row.Cells[0].Text;
try {
connection.Open();
} catch (Exception) { }
cmd.CommandType = CommandType.StoredProcedure;
cmd.Connection = connection;
cmd.CommandText = "sp_delete_user";
cmd.Parameters.Add("@username", SqlDbType.NVarChar, 100).Value = usernameToDelete;
cmd.Parameters.Add("@return_value", SqlDbType.Int).Direction = ParameterDirection.ReturnValue;
cmd.ExecuteNonQuery();
int code = int.Parse(cmd.Parameters["@return_value"].Value.ToString());
if (code == 0) {
//Failed
lblDelteStatus.Text = "Kan gebruiker admin niet verwijderen";
lblDelteStatus.ForeColor = Color.Red;
} else {
// Deleted
lblDelteStatus.Text = "Gebruiker verwijderd";
lblDelteStatus.ForeColor = Color.Black;
// Reload user list
DSUserList.EnableCaching = false;
gridUsers.DataBind();
DSUserList.EnableCaching = true;
}
connection.Close();
if (usernameToDelete == Session["username"].ToString()) {
ProjectManager.logout();
Page.Response.Redirect(Page.Request.Url.ToString());
}
}
}
else if (e.CommandName == "changePassword")
{
string confirmValue = Request.Form["change_password"];
if (confirmValue == "Yes") {
int index = Convert.ToInt32(e.CommandArgument);
GridViewRow row = gridUsers.Rows[index];
String username = row.Cells[0].Text;
TextBox txtPassword = (TextBox)row.Cells[3].FindControl("txtChangePassword");
String password = txtPassword.Text.Trim();
password = password != "" ? ProjectManager.GetSHA1HashData(password) : "";
try {
connection.Open();
} catch (Exception) { }
cmd.Connection = connection;
cmd.CommandType = CommandType.StoredProcedure;
cmd.CommandText = "sp_change_password";
cmd.Parameters.Add("@password", SqlDbType.NVarChar, 100).Value = password;
cmd.Parameters.Add("@username", SqlDbType.NVarChar, 100).Value = username;
cmd.Parameters.Add("@return_value", SqlDbType.Int).Direction = ParameterDirection.ReturnValue;
cmd.ExecuteNonQuery();
int code = int.Parse(cmd.Parameters["@return_value"].Value.ToString());
if (code == 0) {
lblDelteStatus.Text = "Dit wachtwoord is onlangs gebruikt, kies een ander wachtwoord";
lblDelteStatus.ForeColor = Color.Red;
} else if (code == 1) {
lblDelteStatus.Text = "Wachtwoord gewijzigd";
lblDelteStatus.ForeColor = Color.Black;
}
connection.Close();
}
}
}
答案 0 :(得分：2)
在RowDataBound事件中尝试此操作：
创建一个行特定的验证组名称，该名称是某些前缀和行索引的串联，并将其分配给验证组中的每一个验证器和控件...即：
valGroupName = string.format("vgRow{0}", e.row.rowindex.tostring);
Button btn = e.row.FindControl("btnChangePassword");
btn.ValidationGroup = valGroupName
RequiredFieldValidator vreq = e.row.FindControl("rfChangePassReq");
vreq.ValidationGroup = valGroupName
RegularExpressionValidator vregx = e.row.FindControl("rfChangePassReg");
vregx.ValidationGroup = valGroupName
...etc...
这样，当您选择要保存的行按钮时，应仅触发特定行的验证。
我不记得，我现在无法对其进行测试，但是您可能会遇到与RequiredFieldValidator相关联的任何字段的问题，这可能会阻止发布。你必须检查出来。您可能没问题，因为他们将成为不同验证组的一部分。