面对Asp.net Gridview中的编辑项模板中的问题....编辑记录时。 [英] Facing problem in Edit Item Template in Asp.net Gridview....While Editing Record.

问题描述

您好亲爱的朋友们，



我在Asp.net Gridview中遇到编辑项目模板的问题。



我在编辑项模板中有一个内部网格视图的下拉列表。在这个下拉列表中，它有选择的选项。



存储在数据库中时，用户将从下拉列表中选择并保存。



并且对于此记录，我们在gridview中有编辑，更新选项。



编辑记录时，显示-----选择 - -----

我们已经从下拉列表中选择了该选项，它必须在编辑时显示所选的选项。



这是我的标记代码。

 <   asp：TemplateField     HeaderText   =  设备类型 >  
 <   HeaderStyle    宽度  =  100px    /  >  
 <   ItemStyle    宽度  =  100px    /  >  
 
 <   EditItemTemplate  >  
 <   asp ：DropDownList     ID   =  DDLEquipmentTypeEdit    runat   =  server    DataValueField   =  EquipmentType >  
 <   asp：ListItem    已选择  = < span class =code-keyword> True   值  =  0 >  ----选择--- <   / asp：ListItem  >  
 <   asp：ListItem  >  CPU <   / asp：ListItem  >  
 <   asp：ListItem  > 监控<   / asp：ListItem  >  
 <   asp：ListItem  > 打印机<   / asp： ListItem  >  
 <   asp：ListItem  > 扫描程序<   / asp：ListItem  >  
 <   asp：ListItem  > 笔记本电脑<   / asp：ListItem  >  
 < span class =code-keyword><   / asp：DropDownList  >  
 <   asp：RequiredFieldValidator     ID   =  rfv1rv    runat   =  server    ControlToValidate   =  DDLEquipmentTypeEdit    ErrorMessage   = 选择设备类型   文本  =  *    ValidationGroup   =  validationEDIT    InitialValue   =  0  /  >  
 <   / EditItemTemplate  >  
 
 <   ItemTemplate  >  
 <   asp：标签    ID   =  lblitemddlEquipmenttype    runat   =  server   文字  ='  <％ #Eval（  Equipment_type）％> '  /  >  
 <   / ItemTemplate  >  
 <   FooterTemplate  >  
 <  < span class =code-leadattribute> asp：DropDownList     ID   =  ddlftrEquipment_type    runat   =  server   宽度  =  100px < span class =code-attribute>  高度  =  23px    CssClass   =   text_form_fields_ddl    DataValueField   =  EquipmentType   工具提示  = 请选择设备类型 >  
 <   asp：ListItem  >  CPU <   / asp：ListItem  >  
 <   asp：ListItem  > 监控<   / asp：ListItem  >  
 < span class =code-keyword><   as p：ListItem  > 打印机<   / asp：ListItem  >  
 <   asp：ListItem  > 扫描程序<   / asp：ListItem  >  
 <   asp：ListItem  > 笔记本电脑<   / asp：ListItem  >   - ％> 
 <   / asp：DropDownList  >  
 <   asp：RequiredFieldValidator     ID   =  rfvEquipmentType    runat   =  server    ControlToValidate   =  ddlftrEquipment_type    ErrorMessage   = 选择设备类型   文字  =  *    ValidationGroup   = 验证    InitialValue   =  0  /  >  
 <   / FooterTemplate  >  
 <   / asp：TemplateField  >  

请告诉我怎么做？



在此先感谢。

解决方案

代码中的这样的东西可能会这样做：

 ddlftrEquipmentType.SelectedValue = dsEquipment [  EquipmentType]。ToString（）; 

我想你会在你的Gridview控件上的RowCommand事件中做到这一点，但我猜一点，因为我只是从一个DetailsView控件做到这一点它是ItemCommand事件的地方。



这可能会指出你做正确的方向：



http://stackoverflow.com/questions/206983/putting-一个-gridview的行式 - 编辑模式编程

Hello My Dear FRIENDS,

am facing problem with Edit Item Template in Asp.net Gridview.

I have a dropdownlist Inside Gridview in Edit Item Template. In this dropdownlist it has options to select.

While storing in database, user will select from dropdownlist and it will save.

and for this record, we have edit,update option inside gridview.

While editing the record, it shows -----Select------
Already we have selected the option from dropdownlist, it must show the selected option while editing.

This is my Markup Code.

<asp:TemplateField HeaderText="Equipment Type">
<HeaderStyle Width="100px" />
<ItemStyle Width="100px" />

<EditItemTemplate>
<asp:DropDownList ID="DDLEquipmentTypeEdit" runat="server" DataValueField="EquipmentType">
<asp:ListItem Selected="True" Value="0">---- Select ---</asp:ListItem>
   <asp:ListItem>CPU</asp:ListItem>
   <asp:ListItem>Monitor</asp:ListItem>
   <asp:ListItem>Printer</asp:ListItem>
   <asp:ListItem>Scanner</asp:ListItem>
   <asp:ListItem>Laptop</asp:ListItem>
    </asp:DropDownList>
<asp:RequiredFieldValidator ID="rfv1rv" runat="server" ControlToValidate="DDLEquipmentTypeEdit" ErrorMessage="Select Equipment Type" Text="*" ValidationGroup="validationEDIT" InitialValue="0"/>
</EditItemTemplate>

<ItemTemplate>
<asp:Label ID="lblitemddlEquipmenttype" runat="server" Text='<%#Eval("Equipment_type") %>'/>
</ItemTemplate>
<FooterTemplate>
<asp:DropDownList ID="ddlftrEquipment_type" runat="server" Width="100px" Height="23px" CssClass="text_form_fields_ddl" DataValueField="EquipmentType" ToolTip="Please Select Equipment Type">
   <asp:ListItem>CPU</asp:ListItem>
   <asp:ListItem>Monitor</asp:ListItem>
   <asp:ListItem>Printer</asp:ListItem>
   <asp:ListItem>Scanner</asp:ListItem>
   <asp:ListItem>Laptop</asp:ListItem>--%>
    </asp:DropDownList>
<asp:RequiredFieldValidator ID="rfvEquipmentType" runat="server" ControlToValidate="ddlftrEquipment_type" ErrorMessage="Select Equipment Type" Text="*" ValidationGroup="validation" InitialValue="0"/>
</FooterTemplate>
</asp:TemplateField>

Please can you show me how to do this ?

Thanks in advance.

解决方案

Something like this in the code would probably do it:

ddlftrEquipmentType.SelectedValue = dsEquipment["EquipmentType"].ToString();

I think you would do it inside the RowCommand event on your Gridview control, however I'm guessing a little as I've only done this from a DetailsView control where it's the ItemCommand event.

This may point you in the right direction for what to do though:

http://stackoverflow.com/questions/206983/putting-a-gridview-row-in-edit-mode-programmatically

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