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How do I navigate to next screen after validation? – Flutter

SizedBox( height: 50, width: 160, child: Container( decoration: BoxDecoration( borderRadius: BorderRadius.circular(10), color: const Color(0xFF0890F2)), child: TextButton( style: TextButton.styleFrom( backgroundColor: const Color(0xFF223843), ), onPressed: () { final form = _formkey.currentState; if (form != null && form.validate()) { Navigator.push( context, MaterialPageRoute( builder:…

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I want to make a required field validator for each text box having blank spaces in gridview using javascript in asp.net C#

<div style="height: 500px; overflow: scroll;" id="divEmployee" runat="server"> <asp:GridView ID="gView" runat="server" AllowPaging="false" AutoGenerateColumns="False" CssClass="LabelText" DataKeyNames="Id" EmptyDataText="No Data Found !" EnableModelValidation="True" OnRowEditing="gView_RowEditing" Width="100%"> <HeaderStyle CssClass="GridHeader" Height="30px" /> <PagerStyle CssClass="GridRowPage" Font-Size="10pt" /> <RowStyle CssClass="NormalGridRow" Height="30px" /> <FooterStyle CssClass="GridHeader" /> <Columns> <asp:BoundField DataField="Id" HeaderStyle-HorizontalAlign="Center"…

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