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ajax and gridview
see the follwoing code
Code:
<div class="right_txt_space_accm">
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td align=left width="100%">
<asp:GridView AllowPaging=True ID="GridView1" runat="server"
DataSourceID=SqlDataSource1 DataKeyNames=userid
AutoGenerateColumns="False" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3"
Width="449px" style="margin-right: 0px" PageSize="11">
<RowStyle ForeColor="#000066" />
<Columns>
<asp:BoundField DataField="userid" HeaderText="ID" ReadOnly="True"
SortExpression="userid" />
<asp:BoundField DataField="Name" HeaderText="Name" ReadOnly="True"
SortExpression="Name" />
<asp:BoundField DataField="Position" HeaderText="Position" ReadOnly="True"
SortExpression="Position" />
<asp:CommandField HeaderText="Select User" ShowHeader="True"
ShowSelectButton="True" />
<asp:TemplateField HeaderText="GFLN Member Available">
<ItemTemplate>
<asp:CheckBox ID="chkgfln" Enabled=false runat="server" Checked='<%# Bind("GFLN_Membership") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Approve">
<ItemTemplate>
<asp:CheckBox ID="CheckBox1" Enabled=true runat="server" Checked=false />
</ItemTemplate>
</asp:TemplateField>
</Columns>
<FooterStyle BackColor="White" ForeColor="#000066" />
<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:reniConnectionString %>"
SelectCommand="SELECT * FROM [Users]" ></asp:SqlDataSource>
</td>
</tr>
</table>
</div>
<div visible=true runat=server id=details class="right_txt_space_accm">
<asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode=conditional>
<ContentTemplate>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td><strong>Companies </strong></td>
</tr>
<tr>
<td align=left width="100%">
<asp:GridView ID="GridView2" runat="server" Width="286px">
</asp:GridView>
</td> </tr> </table>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="GridView1" EventName="SelectedIndexChanged" />
</Triggers>
</asp:UpdatePanel>
</div>
but i m getting an exception when page(paging) is changed
Sys.WebForms.PageRequestManagerServerErrorException: Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback
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Re: ajax and gridview
Within your GridView, what are you actually doing, i.e. what button/control are you interacting with that causes the postback, and ultimately the exception?
Gary
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Re: ajax and gridview
when i changed pageindexing say pagesize is 10 and when i move to next page it causes this exception
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Re: ajax and gridview
Yes, but how exactly are you moving to the next page? I don't see anything in the markup that you posted that would allow page navigation, and I don't see that you have set the AllowPaging Property of the GridView, which would create this UI for you.
Gary
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1 Attachment(s)
Re: ajax and gridview
Code:
<asp:GridView AllowPaging=True ID="GridView1" runat="server"
DataSourceID=SqlDataSource1 DataKeyNames=userid
AutoGenerateColumns="False" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3"
Width="449px" style="margin-right: 0px" PageSize="10">
<RowStyle ForeColor="#000066" />
<Columns>
<asp:BoundField DataField="userid" HeaderText="ID" ReadOnly="True"
SortExpression="userid" />
<asp:BoundField DataField="Name" HeaderText="Name" ReadOnly="True"
SortExpression="Name" />
<asp:BoundField DataField="Email" HeaderText="email" ReadOnly="True"
SortExpression="email" />
<asp:BoundField DataField="Position" HeaderText="Position" ReadOnly="True"
SortExpression="Position" />
<asp:CommandField HeaderText="Select User" ShowHeader="True"
ShowSelectButton="True" />
<asp:TemplateField HeaderText="GFLN MemberShip">
<ItemTemplate>
<asp:CheckBox ID="chkgfln" Enabled=false runat="server" Checked='<%# Bind("GFLN_Membership") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Company details">
<ItemTemplate>
<asp:Button ID="btnViewDetails" runat="server" Text="Details" OnClick="BtnViewDetails_Click" OnClientClick=true />
<asp:ModalPopupExtender ID="mdlPopup" runat="server" TargetControlID="btnViewDetails" PopupControlID="pnlPopup"
CancelControlID="btnClose" BackgroundCssClass="modalBackground" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Want Visa">
<ItemTemplate>
<asp:CheckBox ID="chkvisa" Enabled=false runat="server" Checked='<%# Bind("want_visa") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Approve">
<ItemTemplate>
<asp:CheckBox ID="CheckBox1" Enabled=true runat="server" Checked=false />
</ItemTemplate>
</asp:TemplateField>
</Columns>
<FooterStyle BackColor="White" ForeColor="#000066" />
<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
</asp:GridView>
Thanks for ur reply can u see the error !!
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Re: ajax and gridview
Ah, ok, so it looks like you are using a ModalPopup, from the AJAX Control Toolkit, which I think is the portion that is causing the problem that you are seeing.
I think this is a case for a complete code sample of what you are using? Is it possible that you can create a small sample application, and upload it here?
Gary
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Re: ajax and gridview
i have an applciation where gridview1 has select button and when click on any row ,gridview2, gridview3 are updated as accrodingly,there is also paging in gridview1 too,so i want if user change teh page both child grid becoem null or blank .
Code:
<asp:SqlDataSource ID="SqlDataSource3" ConnectionString="<%$ ConnectionStrings:reniConnectionString %>"
runat="server" SelectCommand="select * from user_company where userid=@userid" runat="server"></asp:SqlDataSource>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td align=left width="100%">
<asp:UpdatePanel ID="UpdatePanel1" runat="server"> <contenttemplate>
<asp:GridView AllowPaging=True ID="GridView1" runat="server"
DataSourceID=SqlDataSource1 DataKeyNames=userid
AutoGenerateColumns="False" BackColor="White"
BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3"
Width="449px" style="margin-right: 0px" >
<RowStyle ForeColor="#000066" />
<Columns>
<asp:BoundField DataField="userid" HeaderText="ID" ReadOnly="True"
SortExpression="userid" />
<asp:BoundField DataField="Name" HeaderText="Name" ReadOnly="True"
SortExpression="Name" />
<asp:BoundField DataField="Email" HeaderText="email" ReadOnly="True"
SortExpression="email" />
<asp:BoundField DataField="Position" HeaderText="Position" ReadOnly="True"
SortExpression="Position" />
<asp:CommandField HeaderText="Select User" ShowHeader="True"
ShowSelectButton="True" />
<asp:TemplateField HeaderText="GFLN MemberShip">
<ItemTemplate>
<asp:CheckBox ID="chkgfln" Enabled=false runat="server" Checked='<%# Bind("GFLN_Membership") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Company details">
<ItemTemplate>
<asp:Button ID="btnViewDetails" runat="server" Text="Details" OnClick="BtnViewDetails_Click" OnClientClick=true />
<asp:ModalPopupExtender ID="mdlPopup" runat="server" TargetControlID="btnViewDetails" PopupControlID="pnlPopup"
CancelControlID="btnClose" BackgroundCssClass="modalBackground" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Want Visa">
<ItemTemplate>
<asp:CheckBox ID="chkvisa" Enabled=false runat="server" Checked='<%# Bind("want_visa") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Approve">
<ItemTemplate>
<asp:CheckBox ID="CheckBox1" Enabled=true runat="server" Checked='<%# Bind("Approve") %>' />
</ItemTemplate>
</asp:TemplateField>
</Columns>
<FooterStyle BackColor="White" ForeColor="#000066" />
<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
</asp:GridView>
</contenttemplate></asp:UpdatePanel>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:reniConnectionString %>"
SelectCommand="SELECT * FROM [Users]" ></asp:SqlDataSource>
</td>
</tr>
<tr>
<td align=center>
<asp:Button ID="Button1" runat="server" Text="Approve" /></td>
</tr>
</table>
</div>
<div visible=true runat=server id=details class="right_txt_space_accm">
<asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode=conditional>
<ContentTemplate>
<asp:PlaceHolder ID="PlaceHolder1" Visible =false runat="server">
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td><strong>Companies </strong></td>
</tr>
<tr>
<td align=left width="100%">
<asp:GridView ID="GridView2" runat="server" Width="286px">
</asp:GridView>
</td> </tr>
<tr>
<td><strong>Attendenes </strong></td>
</tr>
<tr> <td align=left width="100%">
<asp:GridView ID="GridView3" runat="server" Width="286px">
</asp:GridView>
</td> </tr>
</table>
</asp:PlaceHolder>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="GridView1" EventName="SelectedIndexChanged" />
</Triggers>
</asp:UpdatePanel>
</div>
