I have a TemplateField column in a gridview with a image button inside of it.
i need to use two command arguments within single image button.
here is my code
<asp:TemplateField ItemStyle-Width="30px">
<ItemTemplate>
<asp:ImageButton ID="btnAvaililabitly" runat="server"
ImageUrl="~/CMS/images/available_icon.png"
Width="12px" Height="12px" CommandName="availability"
ToolTip="Rooms Availability"
CommandArgument='<%#Eval("HotelID")%>'/>
</ItemTemplate>
</asp:TemplateField>
please help
You can send comma separated string and collect value on server side
CommandArgument= '<%# String.Format("{0} , {1}", Eval("Name1"), Eval("Name2")) %>'
Related
So I have gridview pulling fields from a table and my hyperlinkfield is used to go to a specific page for that row to get more detailed data. Everything seems to work great except when the field used in the hyperlinkfield has an ampersand. I assume it is reading the ampersand as something else and so it doesn't bring up the proper info because the ampersand is in the name in the database.
Hyperlinkfieldcode:
<asp:HyperLinkField HeaderText="Name" Text="{0}" DataNavigateUrlFields="Name" DataNavigateUrlFormatString="item.aspx?name={0}" DataTextField="Name" />
Example:
A clicking on the name "test item" would take you to mysite.com/item.aspx?name=test%20item and this works.
However, clicking on "test & test item" it takes you to mysite.com/item.aspx?name=test%20item%20&%20item which does not work. It just pulls up a page with blank info.
What can I do to fix this?
Update:
I converted the hyperlinkfield to a hyperlink inside a template field, but the url is now coming out weird.the url now comes out like mysite.com/item.aspx?name=System.Int32%5b%5d
<asp:TemplateField HeaderText="Name">
<ItemTemplate>
<asp:HyperLink runat="server" Text='<%#Eval("Name") %>' DataNavigateUrlFields="Name" NavigateUrl='<%# "name.aspx?name=" + HttpUtility.UrlEncode({0}.ToString())%>' DataTextField="Name" />
</ItemTemplate>
</asp:TemplateField>
My original answer was incomplete (due to not being able to see the entire code). This answer will contain the missing elements.
The main object is to UrlEncode the data field Name, so that it can be used as (part of) a url link .
1 - First we must ensure that the field "Name", is listed as DataKeyNames for the GridView as follows:
<asp:GridView ID="GridView1" runat="server" DataKeyNames="Name" ...
2 - Secondly (if using a navigateURL) create a TemplateField i.e. (asp:TemplateField ) and use Eval() method to access the DataField in conjunction with UrlEncode() .
<asp:TemplateField HeaderText="Name">
<ItemTemplate>
<asp:HyperLink ID="NameLink" runat="server" Text='<%# Eval("Name") %>' NavigateUrl='<%# "name.aspx?name=" + HttpUtility.UrlEncode(Eval("Name").ToString())%>' ></asp:HyperLink>
</ItemTemplate>
</asp:TemplateField>
Option 2 Alternatively you can use a HyperLinkField and DataNavigateURL but you should still designate Name as a DataKeyNames .
Hope this works with no problems. Let me know if any clarification is needed.
Happy coding and Cheers,
I have a few fields that look like this in a website that uses ASP and VB (the data is displayed in a gridview):
<asp:TemplateField HeaderText ="Comp" SortExpression="NAM_CMPT" ItemStyle-Width="50%" ItemStyle-Wrap ="false" ItemStyle-HorizontalAlign ="left">
<ItemTemplate>
<asp:Label ID ="Label_Comp" runat="server"
Text='<%# Eval("CDE_CMPT") + " - " + Eval("NAM_CMPT")%>' />
</ItemTemplate>
</asp:TemplateField>
And what I'm trying to do is display nothing in the field if the data is empty, and display the string you see in the Text property if there is data. Currently it displays the hyphen used in the Text string when there is no data. I tried several methods of formatting the Eval that I found online but was unable to find a working solution. I also tried using the
EmptyDataText
property however this seemed to have no effect.
I am new to ASP so that could be user error. Any help is greatly appreciated.
You can also use eval for visible and check for data
<asp:TemplateField HeaderText ="Comp" SortExpression="NAM_CMPT" ItemStyle-Width="50%" ItemStyle-Wrap ="false" ItemStyle-HorizontalAlign ="left">
<ItemTemplate>
<asp:Label ID ="Label_Comp" runat="server" visible='<%# If(String.IsNullOrEmpty(Eval("CDE_CMPT")), false, true)'
Text='<%# Eval("CDE_CMPT") + " - " + Eval("NAM_CMPT")%>' />
</ItemTemplate>
</asp:TemplateField>
I haven't used VB.net is a while, so the syntax might be off.
I can't find any answer anywhere. I want to refer to the row object itself in an databinding expression in a gridview, like this:
<asp:TemplateField HeaderText="Description">
<ItemTemplate>
<asp:Label runat="server"
Text = '<%# GetPendingReason(Eval("this")) %>' />
</ItemTemplate>
</asp:TemplateField>
But it doesn't work because "this" doesn't refer to any attribute. Referencing individual attributes works fine, but how do you refer to the current row?
Simply use <%# Container.DataItem %>. Do not use Databinder.
If you want to refer to the current row you do that at codebehind using
GridViewRow row = GridView1.Rows[index];
at any of the GridView event.
On an ASP.NET page, I have a SqlDataSource configured with the following SELECT command:
SELECT AVG(Rating) FROM [Ratings] WHERE ([AlbumID] = #AlbumID)
How would I place that average value into a label?
You need to use FormView control to put the Label in.
Something like this:
<asp:formview id="formview1" runat="server" datasourceid="your-datasource-id">
<itemtemplate>
<asp:label id="label1" runat="server" text='<%# Eval("column-name") %>' />
</itemtemplate>
</asp:formview>
Replace your-datasource-id and column-name in the above code.
PS: you might need to alter the query to have a column-name for that one value:
SELECT AVG(Rating) AS "average" FROM [Ratings] WHERE ([AlbumID] = #AlbumID)
Im populating a GridView from List so am forced to use TemplateField controls to allow editing. This requires displaying a TextBox populated with the original value when in edit mode and using FindControl to get the new value out on update submit.
Problem is foundTextBox.Text == "OriginalTextBoxValue"
<asp:TemplateField HeaderText="A Field">
<ItemTemplate>
<asp:Label ID="_theLabel" runat="server" Text='<%# Eval("AField") %>' />
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="_theTextBox" runat="server" Text='<%# Eval("AField") %>' />
</EditItemTemplate>
</asp:TemplateField>
And the code in my update event handler
TextBox newText = (TextBox)_myGridView.Rows[e.RowIndex].FindControl("_thTextBox");
//newText.Text == the old value of the text box
Is your gridview binded at every postback? This could explain why you never get the updated value, because the gridview is rebinded before reading the textbox.
Could you paste your complete update method?
You've got the code behind in the wrong event handler. Move it to the Editing event handler, so it will populate the textbox whenever the user clicks on the Edit command for a row.