C# - Passing More Than One Argument In Button In Gridview?
Apr 5, 2010
I have a TemplateField column in a gridview with a button inside of it.There is NO key value (surely that was not designed by me) , but in the other hand there aren't redundancies when comparing each single column, because they are events, and there is "starting date" and "ending date" of something that could not happen twice at the same time.I've already figured selecting with these values and all, but I just want the button to pass about five arguments to a given function.I've tested:
<asp:Button CommandArgument='<%# Eval("day")%>' ID="Button2" runat="server" Text="Button" />
And it works properly, the day of the clicked row is passed, and could be retrieved through:
e.CommandArgument.ToString();
in the GridView_RowCommand handler. How do I pass more than one argument? I've thought about concatenating with a separating character (wouldn't be that bad) but besides not knowing how to do it yet (didn't want to invest in a poor solution) I want a smarter one.
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Similar Messages:
Mar 5, 2010
I have a gridview with multiple rows, each has a Update button and I need to pass 2 values when someone clicks on Update button. Aside from packing the arguments inside CommandArgument separated by commas (archaic and not elegant), how would I pass more than one argument?
<asp:LinkButton ID="UpdateButton" runat="server" CommandName="UpdateRow" CommandArgument="arg_value" Text="Update and Insert" OnCommand="CommandButton_Click" ></asp:LinkButton>
As a note, the values can't be retrieved from any controls on the page, so don't offer any design solutions. Please concentrate on the question asked.
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May 7, 2015
I use imagebutton in gridview that when I click on it, it delete row of gridview..below is code...
protected void DeleteCustomer1(object sender, EventArgs e)
{
ImageButton IMGDelete = (ImageButton)sender;
}
private void DeleteProduct(ImageButton IMGDelete)
{
using (SqlConnection conn = General.GetConnection())
[code]....
but when I click on imagbutton it didn't do any thing..I put break point and checked @ID value that was "_page" and I checked IMG Delete. Command Argument value was "".I used .CommandArgument for Linkbutton in other page I don't know is it right to use it for imagebutton?
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Aug 2, 2010
I need to pass DBNull to a table adapter expecting int, the solution listed below does not work,
int NetID = DBNull.Value;
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May 20, 2010
I'm looking for the best design solution in relation to the following scenario:
<form>
<repeater>
<itemtemplate>
<usercontrol>
</itemtemplate>
</repeater>
submit button
</form>
The user control is a series of 5 buttons (similar to a radio button list) where only the latest button is recorded. I.e. if you click button 3 and then button 5, button 5's value is stored. The repeater can have a number of usercontrols, varying in numbers. The typical number if 5/6. When the submit button is pressed, the form needs to collect information from all user comtrols I.e. the database id of the control and the final value. The values will be processed later. At this point i'm looking at the best way of validating values, ensuring that all controls have a value and passing them onto the buttons command argument.
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Aug 10, 2010
i have a linkbutton inside the Datalist control while i am clicking i would like to pass the ID value of the corresponding Link button. How can i pass the id value for the onclick function?..
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Oct 14, 2010
in aspx page
<cmp:MenuItemInfo Text="Delete" onclick="javascript:deleteRow('## DataItem.ClientId ##')" />
In Javascript
function deleteRow(rowId)
{
Projectgrid.deleteItem(Projectgrid.getItemFromClientId(rowId));
}
but the arument is coming as a string '## DataItem.ClientId ##' instead of correct clientID.
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Apr 25, 2012
I am having a grid with the three column date, and mode.The last column is Edit.
When i click the edit button, i need to get the corresponding date and mode and show in the pop up. for that it is possible to pass two value in the command ergument.?
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Aug 9, 2010
I have a gridview :
[Code]....
After clicking on generated button i want to add values of other 2 textboxes and selecteditem.value from radio to the link here:
[Code]....
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Aug 3, 2010
I have a web page with various controls. Two of them are dropdownlists. The first dropdownlist gets populated from an xml file on the page_load event. This works fine. To the first dropdownlist a cascadingdropdownlist extender is attached which calls a webservice each time the selection in the first dropdownlist is changed. This works fine too. Underneath my two dropdownlists I have a button which posts the page back. However, when I have made a selection in the second dropdownlist and click the button I get the following error:
Server Error in '/' Application. Invalid postback or callback argument. Event validation is enabled using 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 data for validation.
Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ArgumentException: Invalid postback or callback argument. Event validation is enabled using 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 data for validation.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[code]....
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Oct 27, 2010
I have a grid view that populates and displays data at btn click event from the following sql statement in one of the SP:
SELECT
reg_code, pc_serial, act_code
FROM user_reg
WHERE reg_code=@reg_code
I want to pass parameters to the other Stored procedure when the edit button is clicked in order to update the 2 columns in the specific row at the time. I now how to pass parameters in a regular btn click event or function, but in the case of edit btn in grid view I don't know how to capture data from specific row and then pass it to the SP. Here is Stored Procedure to update the columns (every user always has the same reg code, but may have more than one serial number and activation code, I want to let the user update serial number and then based on the serial number generate new activation code in the SP.):
[Code]....
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Jun 12, 2010
I have following datalist;
[Code]....
And I have following cs code;
What I want is here that ; I want to specify the button's command arguments according to selection of radio buttons which is in the same group. I want know that which price type is selected return or one way.
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Jul 17, 2015
this is how i did it....but it is not working......
$(".lbtnaddtocart", row).eq(j).attr("CommandArgument", customer.find("ProductId").text());
this is the linkbutton in my datalist....
<asp:LinkButton ID="lbtnAddtocart" runat="server" CommandArgument='<%#Eval("ProductId")%>'
BackColor="Green" Font-Bold="true" Text="Add To Cart" Width="150px" BorderColor="Black"
BorderStyle="Inset" BorderWidth="2px" ToolTip="Add To Cart"></asp:LinkButton>
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Apr 8, 2010
I want to know how we can get the command argument of a Image button in Javascript.
Scenario:
I have a grid in that I have image button in template column.on click of each image button i have to redirect to another page with respective ID fields.
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Nov 26, 2010
This is my repeater in GUI and code behind ..I need to replace the 'Make Default' linkbutton with a Check Box now. What I want to do is that When user Checks the checbox, the Default value is set to TRUE in DB , Also when a check box is Checked, it will be grayed out..
NOW I was just trying to implement this but there's no CommandName attribute for checkbox and not even CommandArgument attribute!!
How do I change my code now ?
All I wanna do is replace that Link Button with Checkbox. Somebody his..How do i pass arguments to this check box ..I need the command arguments for my "SetDefault" method that sets the address to TRUE if Default is selected
[EDIT]
I am not getting it..in my Link Button now I am passing 2 command arguments like this CommandArgument='<%# Eval("UserID") + "," + Eval("IsB") %>' Now how do i pass these two Comand arguments that I need for my SetDEfault method in checkebox!? ok i got it that we use OnCheckChanged event when its check box and ItemCommand event is used when its link button...I am just not getting how will I pass these two command arguments in my checkbox
[EDIT]
Do I need to pass these two command arguments via text attribute ?
<asp:CheckBox Text='<%# Eval("UserID") + "," + Eval("IsB") %>' runat="Server"/>
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May 4, 2010
i have had this problem before but haven't found a solution yet. The solutions that i have come across are either bad for security or worked on old versions of the .Net framework. I am using VB.net with framework 3.5 and i get the following error when clicking on a button that is a trigger for an updatepanel:
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 data for validation.
The msg states that you need to use the ClientScriptManager.RegisterForEventValidation but i can't find anywhere which shows a working example of this in VB.net & in .net framework 3.5. Can anyone give me a step by step guide on how to resolve this postback validation error?
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Nov 30, 2010
i have a grid with template feild with two button's Accept and Deny and Command Name="update" and command argument ="Accept" and command argument2="Deny" now the problem is everytime when i click any Button it gives me first row data see my source
[Code]....
My Code Behind
[Code]....
Image [URL]
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Nov 23, 2010
I am having problem with this code, even with @Foolongc 's solution. It shows me an error: "Specified argument was out of the range of valid values."
TableCell selectCell = row.Cells[GridView2.SelectedIndex]; --- this is where the problem arises with the SelectedIndex
info about my gridview:
selectedindex = -1 **** when I change it to 0 it gives me the error when I start the page
datasource is programmaticaly stored not design time.
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Dec 23, 2015
I'm facing error in code behind. It is showing the above exception. Code behind code is as follows
HTML
<asp:GridView ID="gv_TPBill" runat="server" AutoGenerateColumns="false" DataKeyNames="Instance Name"
OnRowDataBound="OnRowDataBound" OnSelectedIndexChanged="OnSelectedIndexChanged">
<Columns>
<asp:TemplateField HeaderText="Client Name" ItemStyle-Width="150">
[Code]....
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Apr 7, 2010
Using ASP.NET VB, I have a form with some text boxes and a Gridview. If a user clicks the Edit button on a row in the gridview, and then tries to submit the form with a row still in edit mode on the Gridview, this error is generated -
"Invalid postback or callback argument. Event validation is enabled using 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 data for validation. "
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Jan 12, 2010
I have a ASP.NET web page which contains a table of check boxes and a button. I need to find the IDs of all the check boxes which are checked when the button click happens. Once the list of IDs are collected, it needs to be passed on to the server. I am able to do it using jQuery and PageMethods.How can I achieve this in the button click handler in the code behind file? i.e. the IDs of all the check boxes which are checked when button click happens.
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Mar 21, 2011
I have a form that is HTML, it involves a few string questions, a radio button, and a check box question. After the form is filled out, the info is then passed to an aspx page which sends out an email with the info. I am able to pass the string questions to the email, but am having trouble passing the radio button answer and the check box answers to the aspx and to then to the email. I have the code for the HTML set, I need help with the code for the ASPX page.(it is VB) Here is the code I have so far.
HTML
<form id="form" method="post" action="SendEmail.aspx" enctype="multipart/form-data" name="questions">
<div class="Qblock">Name: <input type="text" class="input" value="" name="contact_name" /></div>
<div class="Qblock">Phone #: <input type="text" class="input" value="" name="contact_phone" /></div>
<div class="Qblock">E-Mail: <input type="text" class="input" value="" name="contact_email" /></div>
<div class="Qblock">How many years have you been in this industry?<input type="text" class="input" value="" name="contact_long" /></div>
<div class="Qblock">What is your specialty?<input type="text" class="input" value="" name="contact_special" /></div>
<div class="Qblock">Do you have a cell phone?
<input type="radio" name="P1" value="Yes" /> Yes <input type="radio" name="p1" value="No" /> No <br /></div>
<div class="Qblock">Can you do any of the following? (check all that apply)<br />
<input type="checkbox" name="ckBox" value="CustSer" /> Handle Customer Service<br />
<input type="checkbox" name="ckBox" value="ReadForm" /> Read Expense Reports<br />
<input type="checkbox" name="ckBox" value="NewCust" /> Sign Up New Customers<br /></div>
ASPX
Protected Sub RetrieveValues()
Dim sTemp As String = String.Empty
sFromName = "[URL]"
sToName = "[URL]"
sSubject = "Web - Contact Us Inquiry"
sTemp = String.Format("{0}{1}{2}", "<<< Marketing Opportunities >>>", vbCrLf, vbCrLf)
sTemp = String.Format("{0}{1}{2}{3}", sTemp, "Name: ", Request.Params("contact_name"), vbCrLf)
sTemp = String.Format("{0}{1}{2}{3}", sTemp, "Phone: ", Request.Params("contact_phone"), vbCrLf)
sTemp = String.Format("{0}{1}{2}{3}", sTemp, "Email: ", Request.Params("contact_email"), vbCrLf)
sTemp = String.Format("{0}{1}{2}{3}", sTemp, "How many years have you been in this industry? ", Request.Params("contact_long"), vbCrLf)
sTemp = String.Format("{0}{1}{2}{3}", sTemp, "What is your specialty? ", Request.Params("contact_special"), vbCrLf)
End Sub
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Jun 16, 2010
I'm using a grid view to display a number of records from a database.
Each row has an Edit Button. When the button is clicked I want an ID to be passed back to a funtion in my .cs file. How do I bind the rowID to the Button field?
I've tired using a hyper link instead but this doens't seem to work because I'm posting back to the same page which already has a Permanter on the URL.
<asp:GridView ID="gvAddresses" runat="server" onrowcommand="Edit_Row">
<Columns>
<asp:ButtonField runat="server" ButtonType="Button" Text="Edit">
</Columns>
</asp:GridView>
[Code]....
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Mar 29, 2011
I have a actionresult index method in my controller and a http post method for the same name. when i run the program the control should go to the http post method but by default it goes to the index method.
[code]...
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Mar 2, 2010
I'm attempting to use a Button's OnCommand method to handle it's click event so that the event is passed on to OnPreRender method as shown below. So basically the OnPreRender method is called upon a button click. I'm need to use the OnCommand method because I have 2 buttons.
//mark up
<asp:DataPager ID="GroupSearchResultPager" runat="server" OnPreRender="groupSearch_PreRender" >
<asp:Button ID="btnSearchUser" runat="server" Text="Search" OnClick="btnSearchUser_Click" CommandName="searchUser" />
//code behind
protected void btnSearchGroup_Click(object sender, CommandEventArgs e)
{
groupSearch_PreRender(this, e); //call groupSearch_PreRender
}
protected void groupSearchView_PreRender(object sender, CommandEventArgs e)
{
if(e.CommandName=="searchUser")
{
do stuff
}
}
However, this results in the following exception:
CS0123: No overload for 'groupSearch_PreRender' matches delegate 'System.EventHandler' So basically groupSearch_PreRender only takes an EventArg. I've tried casting as shown below but it doesn't seem to work. How else can I pass the button click event to the PreRender method?
protected void groupSearchView_PreRender(object sender, EventArgs e)
{
CommandEventArg entry = (CommandEventArg)e; //casting to CommandEventArg
if(entry.CommandName=="searchUser")
{
do stuff
}
}
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