如何在gridview中显示ajax评级 [英] How to display ajax rating in gridview
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问题描述
我试图在DataGrid中显示Ajax等级。错误是
i am trying to display Ajax Rating in the DataGrid..error is "
Specified cast is not valid."。什么是使用Ajax等级的最佳方法Gridview？
我的尝试：
.What is the best way to use Ajax Rating in the Gridview?
What I have tried:
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:iuploadConnectionString %>"
SelectCommand="SELECT * FROM [tb_Gallery]"></asp:SqlDataSource>
<br />
<cc1:ToolkitScriptManager ID="ToolkitScriptManager2" runat="server">
</cc1:ToolkitScriptManager>
<asp:GridView ID="GridView2" runat="server"
BackColor="White" BorderColor="#3366CC" BorderStyle="None" BorderWidth="1px"
CellPadding="4"
Width="69px"
>
<Columns>
<%--here i am using templatefields to for binding the gridview--%>
<asp:TemplateField HeaderText="Album_name">
<EditItemTemplate>
<%--here i am using the textbox in the edititmtemplatefield to upadate the data--%>
<asp:TextBox ID="txt_album_name" runat="server"
Text='<%# Eval("album_name") %>'></asp:TextBox>
<asp:Label ID="Label4" runat="server" Text='<%# Eval("id") %>' Visible="False"></asp:Label>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("album_name") %>'></asp:Label>
<asp:Label ID="Label2" runat="server" Text='<%# Eval("id") %>' Visible="False"></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Caption">
<EditItemTemplate>
<asp:TextBox ID="txt_caption" runat="server" Text='<%# Eval("caption") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label3" runat="server" Text='<%# Eval("caption") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Image">
<ItemTemplate>
<%--for displaying the image inside the gidview here i'm using the <img>tag
and specify the path of the folder where image is stored--%>
<img alt ="" src ='images/<%#Eval("image") %>' height="200px" width="200px"/>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Delete">
<%--here i am using the linkbutton to delete the record and specify the command name
of this linkbutton is delete--%>
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False"
CommandName="Delete"
onclientclick="return confirm('are you sure you want to delet this column')">Delete</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Update">
<EditItemTemplate>
<%-- here i am using the s linkbuttons to update the record and a cancel button
and set the commandname of update button is update and the cancel button is cancel --%>
<asp:LinkButton ID="LinkButton3" runat="server" CausesValidation="False"
CommandName="Update">Update</asp:LinkButton>
<asp:LinkButton ID="LinkButton4" runat="server" CausesValidation="False"
CommandName="Cancel">Cancel</asp:LinkButton>
</EditItemTemplate>
<ItemTemplate>
<%--here i am using the linkbutton for edit and specify the command name
of this linkbutton is Edit--%>
<asp:LinkButton ID="LinkButton2" runat="server" CausesValidation="False"
CommandName="Edit">Edit</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Rating">
<ItemTemplate>
<cc1:Rating ID="Rating1" AutoPostBack="true" runat="server"
StarCssClass="Star" WaitingStarCssClass="WaitingStar" EmptyStarCssClass="Star"
FilledStarCssClass="FilledStar" CurrentRating='<%# Eval("Rating") %>'>
</cc1:Rating>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<EditRowStyle BorderWidth="60px" Width="60px" />
<FooterStyle BackColor="#99CCCC" ForeColor="#003399" />
<HeaderStyle BackColor="#003399" Font-Bold="True" ForeColor="#CCCCFF" />
<PagerStyle BackColor="#99CCCC" ForeColor="#003399" HorizontalAlign="Left" />
<RowStyle BackColor="#999999" ForeColor="#003399" Width="70px" />
<SelectedRowStyle BackColor="Blue" Font-Bold="True" ForeColor="#CCFF99"
BorderColor="#0066CC" />
<SortedAscendingCellStyle BackColor="#EDF6F6" />
<SortedAscendingHeaderStyle BackColor="#0D4AC4" />
<SortedDescendingCellStyle BackColor="#D6DFDF" />
<SortedDescendingHeaderStyle BackColor="#002876" />
</asp:GridView>
<cc1:Rating ID="Rating2" runat="server">
</cc1:Rating>
<cc1:Rating ID="Rating1" runat="server">
</cc1:Rating>
<asp:SqlDataSource ID="SqlDataSource3" runat="server"
ConnectionString="<%$ ConnectionStrings:iuploadConnectionString %>"
SelectCommand="SELECT * FROM [Ratings]"></asp:SqlDataSource>
推荐答案
ConnectionStrings：iuploadConnectionString ％>
SelectCommand =SELECT * FROM [tb_Gallery]>< / asp：SqlDataSource>
< br />
< cc1：ToolkitScriptManager ID =ToolkitScriptManager2runat =server>
< / cc1：ToolkitScriptManager>
< asp：GridView ID =GridView2runat =server
BackColor =WhiteBorderColor =＃3366CCBorderStyle =NoneBorderWidth =1px
CellPadding =4
Width =69px
>
< Columns>
<％ - 这里我使用templatefields来绑定gridview - ％>
< asp：TemplateField Heade rText = ALBUM_NAME >
< EditItemTemplate>
<％ - 这里我使用edititmtemplatefield中的文本框来更新数据 - ％>
< asp：TextBox ID =txt_album_namerunat =server
Text ='<％＃Eval（album_name）％>'>< / asp：TextBox>
< asp：Label ID =Label4runat =serverText ='<％＃Eval（id）％>'Visible =False>< / asp：Label>
< / EditItemTemplate>
< ItemTemplate>
< asp：Label ID =Label1runat =serverText ='<％＃Eval（album_name）％>'>< / asp：Label>
< asp：Label ID =Label2runat =serverText ='<％＃Eval（id）％>'Visible =False>< / asp：Label>
< / ItemTemplate>
< / asp：TemplateField>
< asp：TemplateField HeaderText =Caption>
< EditItemTemplate>
< asp：TextBox ID =txt_captionrunat =serverText ='<％＃Eval（caption）％>'>< / asp：TextBox>
< / EditItemTemplate>
< ItemTemplate>
< asp：Label ID =Label3runat =serverText ='<％＃Eval（caption）％>'>< / asp：Label>
< / ItemTemplate>
< / asp：TemplateField>
< asp：TemplateField HeaderText =Image>
< ItemTemplate>
<％ - 用于在gidview中显示图像我在这里使用< img>标记
并指定存储图像的文件夹的路径 - ％>
< img alt =src ='images /<％＃Eval（image）％>'height =200pxwidth =200px/>
< / ItemTemplate>
< / asp：TemplateField>
< asp：TemplateField HeaderText =删除>
<％ - 这里我使用linkbutton删除记录并指定命令名称
此链接按钮是删除 - ％>
< ItemTemplate>
< asp：LinkButton ID =LinkButton1runat =serverCausesValidation =False
CommandName =Delete
onclientclick =return confirm（'你确定要吗？ delet this column'）>删除< / asp：LinkButton>
< / ItemTemplate>
< / asp：TemplateField>
< asp：TemplateField HeaderText =Update>
< EditItemTemplate>
<％ - 这里我使用s链接按钮来更新记录和取消按钮
并设置更新按钮的命令名是更新，取消按钮是取消 - ％>
< asp：LinkButton ID =LinkButton3runat =serverCausesValidation =False
CommandName =Update> Update< / asp：LinkButton>
< asp：LinkButton ID =LinkButton4runat =serverCausesValidation =False
CommandName =Cancel>取消< / asp：LinkButton>
< / EditItemTemplate>
< ItemTemplate>
<％ - 这里我使用linkbutton进行编辑，并指定命令名称
此链接按钮是编辑 - ％>
< asp：LinkButton ID =LinkButton2runat =serverCausesValidation =False
CommandName =Edit> Edit< / asp：LinkButton>
< / ItemTemplate>
< / asp：TemplateField>
< asp：TemplateField HeaderText =Rating>
< ItemTemplate>
< cc1：评级ID =Rating1AutoPostBack =truerunat =server
StarCssClass =StarWaitingStarCssClass =WaitingStarEmptyStarCssClass =Star
FilledStarCssClass = FilledStarCurrentRating ='<％＃Eval（Rating）％>'>
< / cc1：评分>
< / ItemTemplate>
< / asp：TemplateField>
< / Columns>
< EditRowStyle BorderWidth =60pxWidth =60px/>
< FooterStyle BackColor =＃99CCCCForeColor =＃003399/>
< HeaderStyle BackColor =＃003399Font-Bold =TrueForeColor =＃CCCCFF/>
< PagerStyle BackColor =＃99CCCCForeColor =＃003399HorizontalAlign =Left/>
< RowStyle BackColor =＃999999ForeColor =＃003399Width =70px/>
< SelectedRowStyle BackColor =BlueFont-Bold =TrueForeColor =＃CCFF99
BorderColor =＃0066CC/>
< SortedAscendingCellStyle BackColor =＃EDF6F6/>
< SortedAscendingHeaderStyle BackColor =＃0D4AC4/>
< SortedDescendingCellStyle BackColor =＃D6DFDF/>
< SortedDescendingHeaderStyle BackColor =＃002876/>
< / asp：GridView>
< cc1：评级ID =Rating2runat =server>
< / cc1：评分>
< cc1：评级ID =Rating1runat =server>
< / cc1：评分>
< asp：SqlDataSource ID =SqlDataSource3runat =server
ConnectionString =<％
ConnectionStrings:iuploadConnectionString %>" SelectCommand="SELECT * FROM [tb_Gallery]"></asp:SqlDataSource> <br /> <cc1:ToolkitScriptManager ID="ToolkitScriptManager2" runat="server"> </cc1:ToolkitScriptManager> <asp:GridView ID="GridView2" runat="server" BackColor="White" BorderColor="#3366CC" BorderStyle="None" BorderWidth="1px" CellPadding="4" Width="69px" > <Columns> <%--here i am using templatefields to for binding the gridview--%> <asp:TemplateField HeaderText="Album_name"> <EditItemTemplate> <%--here i am using the textbox in the edititmtemplatefield to upadate the data--%> <asp:TextBox ID="txt_album_name" runat="server" Text='<%# Eval("album_name") %>'></asp:TextBox> <asp:Label ID="Label4" runat="server" Text='<%# Eval("id") %>' Visible="False"></asp:Label> </EditItemTemplate> <ItemTemplate> <asp:Label ID="Label1" runat="server" Text='<%# Eval("album_name") %>'></asp:Label> <asp:Label ID="Label2" runat="server" Text='<%# Eval("id") %>' Visible="False"></asp:Label> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Caption"> <EditItemTemplate> <asp:TextBox ID="txt_caption" runat="server" Text='<%# Eval("caption") %>'></asp:TextBox> </EditItemTemplate> <ItemTemplate> <asp:Label ID="Label3" runat="server" Text='<%# Eval("caption") %>'></asp:Label> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Image"> <ItemTemplate> <%--for displaying the image inside the gidview here i'm using the <img>tag and specify the path of the folder where image is stored--%> <img alt ="" src ='images/<%#Eval("image") %>' height="200px" width="200px"/> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Delete"> <%--here i am using the linkbutton to delete the record and specify the command name of this linkbutton is delete--%> <ItemTemplate> <asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False" CommandName="Delete" onclientclick="return confirm('are you sure you want to delet this column')">Delete</asp:LinkButton> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Update"> <EditItemTemplate> <%-- here i am using the s linkbuttons to update the record and a cancel button and set the commandname of update button is update and the cancel button is cancel --%> <asp:LinkButton ID="LinkButton3" runat="server" CausesValidation="False" CommandName="Update">Update</asp:LinkButton> <asp:LinkButton ID="LinkButton4" runat="server" CausesValidation="False" CommandName="Cancel">Cancel</asp:LinkButton> </EditItemTemplate> <ItemTemplate> <%--here i am using the linkbutton for edit and specify the command name of this linkbutton is Edit--%> <asp:LinkButton ID="LinkButton2" runat="server" CausesValidation="False" CommandName="Edit">Edit</asp:LinkButton> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Rating"> <ItemTemplate> <cc1:Rating ID="Rating1" AutoPostBack="true" runat="server" StarCssClass="Star" WaitingStarCssClass="WaitingStar" EmptyStarCssClass="Star" FilledStarCssClass="FilledStar" CurrentRating='<%# Eval("Rating") %>'> </cc1:Rating> </ItemTemplate> </asp:TemplateField> </Columns> <EditRowStyle BorderWidth="60px" Width="60px" /> <FooterStyle BackColor="#99CCCC" ForeColor="#003399" /> <HeaderStyle BackColor="#003399" Font-Bold="True" ForeColor="#CCCCFF" /> <PagerStyle BackColor="#99CCCC" ForeColor="#003399" HorizontalAlign="Left" /> <RowStyle BackColor="#999999" ForeColor="#003399" Width="70px" /> <SelectedRowStyle BackColor="Blue" Font-Bold="True" ForeColor="#CCFF99" BorderColor="#0066CC" /> <SortedAscendingCellStyle BackColor="#EDF6F6" /> <SortedAscendingHeaderStyle BackColor="#0D4AC4" /> <SortedDescendingCellStyle BackColor="#D6DFDF" /> <SortedDescendingHeaderStyle BackColor="#002876" /> </asp:GridView> <cc1:Rating ID="Rating2" runat="server"> </cc1:Rating> <cc1:Rating ID="Rating1" runat="server"> </cc1:Rating> <asp:SqlDataSource ID="SqlDataSource3" runat="server" ConnectionString="<%
ConnectionStrings： iuploadConnectionString％>
SelectCommand =SELECT * FROM [Ratings]>< / asp：SqlDataSource>
ConnectionStrings:iuploadConnectionString %>" SelectCommand="SELECT * FROM [Ratings]"></asp:SqlDataSource>
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