在我的最后一年项目中,我正在使用 GridView ,它使用 ObjectDataSource 来显示数据库数据。 我的 ObjectDataSource 与正确的“select”,“update”,“delete”函数相关联,这些函数属于N层应用程序。
我已经测试了我的所有功能,但效果很好。
但是当在GridView的“ Edit”模式下,我无法更新我的字段...但是我可以很好地删除行。
有什么建议吗?
谢谢!
更新:问题是我的asp客户端验证器阻止我以“编辑”模式提交更新的字段。 我已将它们添加到代码中。
部分代码:
<form id="form1" runat="server">
<div>
<asp:ObjectDataSource ID="BeersObjectDataSource" runat="server"
DeleteMethod="DeleteBeer_BLL"
SelectMethod="RetrieveBeers_BLL"
UpdateMethod="UpdateBeer_BLL"
TypeName="BLL" >
<DeleteParameters>
<asp:Parameter Name="id" Type="Int32" />
</DeleteParameters>
<UpdateParameters>
<asp:Parameter Name="id" Type="Int32" />
<asp:Parameter Name="name" Type="String" />
<asp:Parameter Name="country" Type="String" />
<asp:Parameter Name="logoPath" Type="String" />
</UpdateParameters>
</asp:ObjectDataSource>
</div>
<asp:GridView ID="GridView1" runat="server" AllowPaging="True"
AllowSorting="True" AutoGenerateColumns="False"
DataSourceID="BeersObjectDataSource" PageSize="7"
onrowdeleted="GridView1_RowDeleted" onrowupdated="GridView1_RowUpdated" DataKeyNames="id">
<Columns>
<asp:CommandField ShowDeleteButton="True" ShowEditButton="True" />
<asp:BoundField DataField="id" HeaderText="ID"
ReadOnly="True" SortExpression="id" />
<asp:BoundField DataField="name" HeaderText="Beer Name" SortExpression="name" />
<asp:BoundField DataField="country" HeaderText="Beer Country"
SortExpression="country" />
<asp:BoundField DataField="logoPath" HeaderText="Image Path"
SortExpression="logoPath" ReadOnly="True" />
<asp:ImageField DataImageUrlField="logoPath" DataImageUrlFormatString="~/{0}"
HeaderText="Logo Preview" NullDisplayText="No image"
NullImageUrl="~/images/logobeers/no-photo.jpg"
SortExpression="logoPath" ReadOnly="True">
<ControlStyle Height="100px" Width="100px" />
</asp:ImageField>
</Columns>
</asp:GridView>
<br />
<br />
<asp:TextBox ID="TextBoxBeerName" runat="server">Beer Name</asp:TextBox>
<asp:CustomValidator ID="CustomValidator1" runat="server"
ControlToValidate="TextBoxBeerName" Display="Dynamic"
ErrorMessage="*"
onservervalidate="CustomValidator1_ServerValidate" SetFocusOnError="True"
ForeColor="Red"></asp:CustomValidator>
<asp:TextBox ID="TextBoxBeerCountry" runat="server">Beer Country</asp:TextBox>
<asp:CustomValidator ID="CustomValidator2" runat="server"
ControlToValidate="TextBoxBeerCountry" Display="Dynamic"
ErrorMessage="*"
onservervalidate="CustomValidator2_ServerValidate" SetFocusOnError="True"
ForeColor="Red"></asp:CustomValidator>
<asp:FileUpload ID="FileUpload1" runat="server" />
<asp:Button ID="Button1" runat="server" Text="Upload to DataBase"
onclick="Button1_Click" />
<asp:Label ID="uploadStatusLabel" runat="server" Enabled="false"></asp:Label>
</form>
部分代码背后:
protected void Page_Load(object sender, EventArgs e)
{
}
protected void GridView1_RowUpdated(object sender, GridViewUpdatedEventArgs e)
{
GridView1.DataBind();
}
protected void GridView1_RowDeleted(object sender, GridViewDeletedEventArgs e)
{
GridView1.DataBind();
}
protected void Button1_Click(object sender, EventArgs e)
{
if (IsValid == true)
{ /* SOME CODE ..... */ }
}
答案 0 :(得分:0)
那个答案对我有帮助: Why asp.net validators prevent all other postback?
我做了一个 ValidationGroup :
为每个 CustomValidator
添加了属性ValidationGroup="AddBeerValidationGroup"
部分修改后的代码:
protected void Button1_Click(object sender, EventArgs e)
{
Page.Validate("AddBeerValidationGroup");
if (Page.IsValid == true)
{ /* SOME CODE ..... */ }
}