This is my aspx code:
<asp:TemplateField HeaderText="Enter_Quantity" >
<ItemTemplate>
<asp:TextBox ID ="TextBox1" runat="server" DataField="Total_Quantity" />
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="TextBox1" ErrorMessage="Please add a quantity"> </asp:RequiredFieldValidator>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:Button ID ="Button7" runat="server" OnClick="Button7_Click" CommandArgument="Button7" CommandName="Select" Text="Add To Cart" CausesValidation ="true" />
</ItemTemplate>
</asp:TemplateField>
Kindly note that the Button is in every Gridview Row and also the textbox column is in every Gridview row.
The problem I'm facing is that when I keep the textbox empty and then click on the button. It is showing the error message "Please add a quantity". But it is showing it in every Gridview row. I want to show this error message for that specific GridView row.
How do I solve this ?
Can someone correct my aspx code ?
Set CauseValidation = "false".
It allows you to remove validation from specific control. Suppose you're using two buttons in your page but you want only one button to validate. But as per ASP rules all button will validate your form because of CausesValidation = true by default.
Related
I am new to asp.net, forgive my newbie question.
I have a listview which displays all item info (ItemID,Item name).
I bound the item name to a hyperlink control. now what i want to do is that when i click the hyperlink i want to get the ID and navigate the item detail page. i tried using selected index but it still returns null. here's my code.
On the listview itemTemplate code
<asp:HyperLink ID="HyperLink1" runat="server"
NavigateUrl="ItemDetails.aspx"> <%# Eval("[ItemName]") %>
</asp:HyperLink>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("[ItemID]") %>'/>
Please help.thanks in advance
Instead of Hyperlink, I used LinkButton in ItemTemplate If u want to pass the selectedId to the next page u can pass using Query String
<asp:TemplateField HeaderText="Edit" HeaderStyle-HorizontalAlign="Center" HeaderStyle-Width="120px">
<ItemTemplate>
<asp:LinkButton ID="lnk_ViewDetails" runat="server" Text='View Details' PostBackUrl='<%#"~/ViewDetailss.aspx?Id="+Eval("ID")%>'></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
If u want to encrypt querystring Please refer This Link
I have the following button on GridView and I want to display a message box to the user for confirming whether he is sure or not for buying the item.(I'm familiar with OnClientClick= return confirm('xxxxx'); ) but on Grid View it is different I can't use this method though.
<asp:ButtonField CommandName="buynow" ImageUrl="~/images/buy.png" HeaderText="BUY" ButtonType="Image"/>
Use itemtemplate field in column node in gridview markup
eg.
<asp:TemplateField HeaderText="Save">
<ItemTemplate>
<asp:Button ID="btnSave" runat="server" Text="Save" OnClientClick="return confirm('Do you want to save?')" />
</ItemTemplate>
</asp:TemplateField>
I have a page which consists of a form on top to add new records into table1 and below that a GridView which shows records in table1 with the ability to edit.
Now the form above is simply one text box which allows you to enter names into table1, this textbox has a required field validator. The validator causes issues however when the gridview is in edit mode as when the user presses 'update' nothing is saved because the validator is triggers (as there is nothing in the form above)
How can I fix this?
You have to put CausesValidation="False" in GridView
<Columns>
<asp:CommandField ShowDeleteButton="True" ShowEditButton="True" CausesValidation="False"/>
You can set the RequiredFieldValidator Control and the Add button have the same ValidationGroup name. Something like this:
<asp:Button ID="btnAdd" runat="server" OnClick="btnAdd_Click" ValidationGroup="addValidation" />
<asp:RequiredFieldValidator ID="nameRequired" ControlToValidate="txtName" runat="server" ValidationGroup="addValidation"></asp:RequiredFieldValidator>
...
<asp:Button ID="btnUpdate" runat="server" OnClick="btnUpdate_Click" />
So that, the Update button won't be impacted.
Use cause validation to false in the gridview button.
<asp:Button ID="Button2" runat="server"
CausesValidation="False"
Text="Cancel - Will Not Validate!" />
Here is an example:
http://www.java2s.com/Code/ASP/Asp-Control/CausesValidationFalse.htm
I am using a multi page gridview to display bunch of data. Here is the code of the gridview.
<asp:GridView ID="unverifiedlist" runat="server" AutoGenerateColumns="false" AllowSorting="true" AllowPaging="true" OnRowDataBound="unverifiedlist_RowDataBound" style="font-size:12px" >
<Columns><asp:BoundField HeaderText="Surname" DataField="Surname" ReadOnly="true"/></Columns>
<Columns><asp:BoundField HeaderText="Firstname" DataField="Givenname" ReadOnly="true"/></Columns>
......
<Columns><asp:TemplateField HeaderText="Options" >
<ItemTemplate>
<asp:DropDownList ID="options" runat="server" AutoPostBack="true" OnSelectedIndexChanged="options_SelectedIndexChanged">
<asp:ListItem></asp:ListItem>
<asp:ListItem Value="1">Verified</asp:ListItem>
<asp:ListItem Value="2">Rejected</asp:ListItem>
</asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText ="Reason">
<ItemTemplate>
<asp:TextBox ID="reason" runat="server" OnTextChanged ="reason_TextChanged"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<PagerSettings Visible="false"/>
</asp:GridView>
<asp:DropDownList ID="PageSelect" AutoPostBack="true" runat="server" OnSelectedIndexChanged="PageSelect_SelectedIndexChanged"></asp:DropDownList>
there is a column called "option" which contains a dropdownlist, and it will postback everytime when the selected index was changed to save the edited row. I am trying to avoid this frequent postback. So i think if I can save the whole page before user turn to the next page.
The problem is the "PageSelect" dropdownlist's postback will trigger the page reload first, then onselectedindexchanged event, at this point, the gridview already turned to the next page. So can anyone give me some advice?
You can set EnableSortingAndPagingCallBacks property of the grid view to true , but that wont work if you are using template fields in your gridview, for maintaining the state of the page, you will have to keep the value of current page in session and on page load you can check the session..
I used the gridview itself's paging navigation control instead of my dropdownlist at last. Then I am able to use the pageindexchanging event to save the current page into a session before it goes to the next page
I have a DetailsView control with a template field as follows:
<asp:TemplateField SortExpression="Title">
<ItemTemplate>
<asp:TextBox ID="txtMessageTitle" Text='<%# Bind("Title") %>' runat="server">
</asp:TextBox>
<asp:Button ID="btnUpdateTitle" runat="server" Text="Update"
CommandName="UpdateTitle" CommandArgument='<%# Bind("MessageID") %>' oncommand="btnUpdateCommand"/>
</ItemTemplate>
</asp:TemplateField>
The Details View is wrapped inside an UpdatePanel.
When the user clicks on btnUpdateButton I'd like to be able to retrieve the textbox (txtMessageTitle) value in code behind and by using CommandArgument of the button, update the appropriate MessageTitle in database. How can I retrieve the textbox value inside the DetailsView control from the Command event of my button?
Thanks.
use the following:
TextBox txtMessageTitle = detailsViewName.FindControl("txtMessageTitle") as TextBox;
string text = txtMessageTitle.Text;