如何在GridView中默认显示下拉菜单中的选择 [英] how to display select in dropdown by default in gridview

问题描述

如何在网格视图中设置选择" HardCode第一值下拉菜单.

  <asp:TemplateField HeaderText="Professional Role">
                                            <itemtemplate>
                                                <asp:DropDownList runat="server" ID="ddlProfRole" width="87%" DataValueField="ProfRoleCode" DataSourceID="SqlDataSource2" DataTextField="ProfRoleDescription">
                                            </itemtemplate>
                                            <itemstyle horizontalalign="Center" width="25%" />
                                       

<asp:SqlDataSource ID="SqlDataSource2" runat="server"   
    ConnectionString="<%$ConnectionStrings:MPP%>"
    SelectCommand="select ProfRoleCode,ProfRoleDescription,Designcode,DeptID from mppProfRoleMapping order by ProfRoleCode">

问候，
Ganesh.S

解决方案

ConnectionStrings:MPP％> SelectCommand =从ProfppoleCode的mppProfRoleMapping顺序中选择ProfRoleCode，ProfRoleDescription，Designcode，DeptID">

问候，
Ganesh.S

您好，

在关闭您的dropdownlistcontrol
之前添加此代码 < asp:ListItem Text ="Select" Value =-1"></asp:ListItem>

希望对您有帮助

谢谢
sanjeev

使用属性AppendDataBoundItems

<asp:dropdownlist runat="server" id="ddlProfRole" width="87%" datavaluefield="ProfRoleCode" datasourceid="SqlDataSource2" datatextfield="ProfRoleDescription" appenddatabounditems="true" xmlns:asp="#unknown">
    <asp:listitem text="ALL" value="" />   
</asp:dropdownlist>

进一步阅读
ASP.NET中的ListControl.AppendDataBoundItems属性 [

  <asp:TemplateField HeaderText="Professional Role">
                                            <itemtemplate>
                                                <asp:DropDownList runat="server" ID="ddlProfRole" width="87%" DataValueField="ProfRoleCode" DataSourceID="SqlDataSource2" DataTextField="ProfRoleDescription">
                                            </itemtemplate>
                                            <itemstyle horizontalalign="Center" width="25%" />
                                       

<asp:SqlDataSource ID="SqlDataSource2" runat="server"   
    ConnectionString="<%$ConnectionStrings:MPP%>"
    SelectCommand="select ProfRoleCode,ProfRoleDescription,Designcode,DeptID from mppProfRoleMapping order by ProfRoleCode">

Regards,
Ganesh.S

解决方案

ConnectionStrings:MPP%>" SelectCommand="select ProfRoleCode,ProfRoleDescription,Designcode,DeptID from mppProfRoleMapping order by ProfRoleCode">

Regards,
Ganesh.S

Hello,

add this before closing ur dropdownlistcontrol
<asp:ListItem Text="Select" Value="-1" ></asp:ListItem>

hoping it will help you

thanks
sanjeev

Use the property AppendDataBoundItems

<asp:dropdownlist runat="server" id="ddlProfRole" width="87%" datavaluefield="ProfRoleCode" datasourceid="SqlDataSource2" datatextfield="ProfRoleDescription" appenddatabounditems="true" xmlns:asp="#unknown">
    <asp:listitem text="ALL" value="" />   
</asp:dropdownlist>

Further reading
ListControl.AppendDataBoundItems Property in ASP.NET[^]

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