Question

我希望能够update Gridview行row中的textbox数据，并确保label message字段中的数据是有效输入。但是我的代码是检查整个页面是否有有效输入，并且即使我尝试更新的行中的数据有效，也阻止我更新更新。在error message的情况下，我的invalid data也未显示row。如何检查update我尝试error message是否有效输入，如果没有输出<br /> <asp:Label ID="MessageLbl" runat="server"></asp:Label> <br /> <asp:Label ID="Label1" runat="server" Text="Editing Table"></asp:Label> <br /> <asp:GridView ID="GridView4" runat="server" CellPadding="4" ForeColor="#333333" GridLines="None" OnRowCommand="GridView4_RowCommand" OnSelectedIndexChanged="GridView4_SelectedIndexChanged" AutoGenerateColumns="False"> <AlternatingRowStyle BackColor="White" /> <Columns> <asp:TemplateField ShowHeader="False"> <ItemTemplate> <asp:LinkButton OnClick="UpdateRow_Click" ID="LinkButton1" runat="server" CausesValidation="false" CommandName="UpdateGCommand" Text="Update"> </asp:LinkButton> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Name"> <ItemTemplate> <asp:TextBox ID="textBox1" runat="server" Text='<%#Eval("Name")%>'> </asp:TextBox> <asp:RequiredFieldValidator ValidationGroup="UpdatingGrid" ID="rfvName" runat="server" ErrorMessage="Name is a required field" ControlToValidate="textBox1" Text="*" ForeColor="Red"> </asp:RequiredFieldValidator> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Email"> <ItemTemplate> <asp:TextBox ID="textBox2" runat="server" Text='<%#Eval("Email")%>'> </asp:TextBox> <asp:RequiredFieldValidator ValidationGroup="UpdatingGrid" ID="rfvEmail" runat="server" ErrorMessage="Email is a required field" ControlToValidate="textBox2" Text="*" ForeColor="Red"> </asp:RequiredFieldValidator> <asp:RegularExpressionValidator ValidationGroup="UpdatingGrid" ID="RegularExpressionValidatorEmail" runat="server" ErrorMessage="*Invalid Email" ForeColor="Red" ControlToValidate="textBox2" ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"> </asp:RegularExpressionValidator> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Mobile"> <ItemTemplate> <asp:TextBox ID="textBox3" runat="server" Text='<%#Eval("Mobile")%>'> </asp:TextBox> <asp:RequiredFieldValidator ValidationGroup="UpdatingGrid" ID="rfvMobile" runat="server" ErrorMessage="Mobile is a required field" ControlToValidate="textBox3" Text="*" ForeColor="Red"> </asp:RequiredFieldValidator> </ItemTemplate> </asp:TemplateField> </Columns> <FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" /> <HeaderStyle BackColor="#990000" Font-Bold="True" ForeColor="White" /> <PagerStyle BackColor="#FFCC66" ForeColor="#333333" HorizontalAlign="Center" /> <RowStyle BackColor="#FFFBD6" ForeColor="#333333" /> <SelectedRowStyle BackColor="#FFCC66" Font-Bold="True" ForeColor="Navy" /> <SortedAscendingCellStyle BackColor="#FDF5AC" /> <SortedAscendingHeaderStyle BackColor="#4D0000" /> <SortedDescendingCellStyle BackColor="#FCF6C0" /> <SortedDescendingHeaderStyle BackColor="#820000" /> </asp:GridView>？这是我的HTML代码：

＆＃13;

  protected void GridView4_RowCommand(object sender, GridViewCommandEventArgs e) {
    if (e.CommandName == "UpdateGCommand") {
      if (IsPostBack) {

        Page.Validate("UpdatingGrid");
        while (!Page.IsValid) {
          if (Page.IsValid) {

            DataSet EditT = new DataSet();
            DataSet ValidT = new DataSet();
            DataRow row;
            if (Session["Edit"] != null) {
              EditT = (DataSet) Session["Edit"];
            }
            if (Session["Valid"] != null) {
              ValidT = (DataSet) Session["Valid"];
            }

            DataTable dtEdit = EditT.Tables[0];
            DataTable dtValid = ValidT.Tables[0];



            GridViewRow gvr = (GridViewRow)(((LinkButton) e.CommandSource).NamingContainer);
            int RowIndex = gvr.RowIndex;
            row = dtEdit.Rows[RowIndex];
            string txtName = ((TextBox) GridView4.Rows[RowIndex].FindControl("textBox1")).Text;
            string txtEmail = ((TextBox) GridView4.Rows[RowIndex].FindControl("textBox2")).Text;
            string txtMobile = ((TextBox) GridView4.Rows[RowIndex].FindControl("textBox3")).Text;

            if (txtName != null) {
              EditT.Tables[0].Rows[RowIndex]["Name"] = txtName;
            }


            if (txtEmail != null) {
              EditT.Tables[0].Rows[RowIndex]["Email"] = txtEmail;
            }

            if (txtMobile != null) {
              EditT.Tables[0].Rows[RowIndex]["Mobile"] = txtMobile;
            }
            dtValid.Rows.Add(row.ItemArray);
            dtEdit.Rows[RowIndex].Delete();
            GridView4.DataSource = EditT;
            GridView5.DataSource = ValidT;
            GridView4.DataBind();
            GridView5.DataBind();
          } else {
            MessageLbl.Text = "Invalid Input";
          }
        }
      }

    }
  }

＆＃13;

这是我的c＃代码：

＆＃13;

drawRec

＆＃13;

Answer 1

您必须添加

的ValidationGroup

也属于你的链接按钮。

<asp:LinkButton ID="yourId" CausesValidation="true" ValidationGroup="UpdatingGrid" runat="server">LinkButton</asp:LinkButton>

Answer 2

即使将ValidationGroup属性放在按钮上也不确定，因为所有行都有相同的控件验证组。您可以尝试使验证组对每一行都是唯一的，例如将其放入：

<asp:RequiredFieldValidator 
 ValidationGroup="<%# String.Format("UpdatingGrid{0}", Container.DataItemIndex)%>" ...>
</asp:RequiredFieldValidator>

以及按钮：

<asp:LinkButton ValidationGroup="<%# String.Format("UpdatingGrid{0}", Container.DataItemIndex)%>"

如果这不起作用，那么您可以点击旧的RowCreated事件（或RowDataBound）：

GridView1_RowCreated(object sender, GridViewRowEventArgs e){
    if(e.Row.RowType != DataControlRowType.DataRow) 
        return;

    var rfem = e.Row.FindControl("rfvEmail") as RequiredFieldValidator;
    if(rfem!=null){
        rfem.ValidationGroup = "UpdatingGrid" + e.Row.RowIndex;
    }
    //do same for other validators and button as well.
}

验证程序甚至无法使用验证组，以确保自定义更新按钮的更新输入有效

2 个答案: