.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

Passing values to the parent form

Posted By:      Posted Date: October 16, 2010    Points: 0   Category :Windows Application


I have two forms, a parent and a child. When I close the child form I need to pass a (bool value?) to the parent form which indicates whether I want to close the parent form as well, or not.

How do I pass this value from the child form to the parent form? Or is there a better way to return a value to a parent form?

I’m using VS 2008 and C#

Kind regards


View Complete Post

More Related Resource Links

Passing values in pages


Hi! Friends..

how to pass the value from one page to another page in asp.net  with out Using State Management Concepts?

Like 1. cookies


        3. QueryStrings

     With out using the above should pass the values...

Passing HTML values from asp.net to asp


 We have a part of our website which is coded in classic asp. This takes the values of a login page (asp.net)  which uses 

<input type="text" /> to hold the values and then submit them to the asp page using the following line of code -

<input type="submit" value="Login" onClick="this.form.action='<%= SubmitURL() %>/login/login_user.asp?Type=Login&amp;this.form.encoding='application/x-www-form-urlencoded'; this.form.submit();" />

The asp page then retrieves the values using the code -

Value1 = Request.Form("Val1")

We now have a requirement to pre-populate the login values to provide an automated login process but don't want to change the older asp code. When we try to assign values to the input text in the asp.net page by assigning the value runat="server" the login fails as it does not seem to carry over when the page is submitted.

Is there a way where we can pre-populate the html textbox without making it unavailable to the asp page?


What is the easiest way to reset all the values of controls on a web form (vb.net) to their defaults


What is the easiest way to reset all the controls on a web form.  Can I set "veiw state" to false for all of the controls with one command, do a response-redirect to its own page, and set view state back to true.  What is the easiest way to do it.



Passing values from vb to jquery


I have an asp.net page with a vb code behind file. I also have a simple menu built with an unordered list which is controlled by jquery. Basically, how do I pass a value from the vb code behind file to the jquery? At the moment im assigned the value to an asp:label  that I'm able to read in jquery, but it's a bit messy. Is there a better way of doing it?



passing object values from server to client problem


I get a message that x_login is not declared.  I added Dim login as String = "123", but that didn't help.  What's the problem?

code behind....

Dim Login = "123"
x_login.Value = loginID


<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="Default.aspx.vb" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<form id="simForm" runat="server" method='post' action='https://test.authorize.net/gateway/transact.dll'>
        <input id="HiddenValue" type="hidden" value="Initial Value" runat="server" />
        <input type='hidden' runat="server" name='x_login' id='x_login' />
        <input type='submit' runat="server" id='buttonLabel' />



Javascript to pass var in iframe to parent form

Why doesn't this form work when the button is clicked? It is inside an iframe. I sent the controls to an iframe from  a different website. When I hover my mouse over the Resubmit button, I can see the correct url in my browser bar. (lower left) This is the same one as the save button. Does the fact that the Resbmit button is in an iframe create a problem?  Is this a security issue?   I was trying to use the Copy url to clipboard button to copy the selected url in the dropdown to the clipboard. Then the user could paste it into the Recipcocal url field in the form and click the Save button again. (see picture) The form is on the page with the iframe. The copy button doesn't work either.  <form name="ctl01" method="post" action="http://www.link-exchangers.com/adv_links_addbycustomer.aspx" id="ctl01" target="hdnFrm"> <div> <input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUaUXIyTcD6f05q0zIbv4QVbpto4s=" /> </div> <div> <input type="hidden" name="__EVENTVALIDATION" id="__EVENTVALIDATION" value="//2DwKU+M6MDwK8m8+dCQKy8rjSBwLD+aWMBALcwYfHCALrp+eHDwKggI3ODAKvtqqBBgKjs8y4CAKqiLHeDgK34agCBNfAteTeI3XoiXVXjCs/J0yEnNM=" /> </div>

this.controls.add - not always adding to parent form

My current code (snippet below) iterates through user info and adds the same custom control to a form based on how many "Meals" (1-6) the user has selected.  It appears that all even # controls (the second, fourth and sixth) are added to the previously added control, rather than the parent form, when I later try to dispose the controls by iterating through this.controls, only 1, 3 and 5 appear, the others appear as children to 1, 3 & 5. I've reduced controls size, etc. to make sure they're not overlapping (if that can force inheritence?) but no luck.  Anyone have suggestions on what to look at or other guidance? public void drawMealPanel(Meal m, int x, int y) { Controls.MealDisplay md = new Controls.MealDisplay(m); md.Name = m.name; md.Tag = m.id.ToString(); md.Left = x; md.Top = y; md.DragDrop += new System.Windows.Forms.DragEventHandler(this.MealView_DragDrop); md.DragEnter += new System.Windows.Forms.DragEventHandler(this.MealView_DragEnter); this.Controls.Add(md); }

Passing values from web page to custom security trimmer in SharePoint 2010

Hi, In SharePoint 2007 we had a custom security trimmer that implemented ISecurityTrimmer interface. We also had a custom webpart used for search. Now, using HttpContext we passed values from the webpart to security trimmer with additional info needed to trim the results. It worked since trimmer was executed in the same w3wp process as webpart. Now in SharePoint 2010, the architecture for ISecurityTrimmer2 has changed, as it's executed in search process (other w3wp) - not the webpart w3wp so it has no access to the HttpContext. Question is: how to pass custom data, in form of the string, to a security trimmer when search is done from custom code in webart?

Passing return value from a Web Service to a label in a Form View

I am using JavaScript to call a web service. The JS is correctly receiving and passing the web service information. At the moment, the web service returns a country name as a string to a JavaScript alert pop up box as follows:ret = CountryRegionsWebService.GetTranslatedCountryShortName(ddl1_value, ddl2_value, OnComplete, OnTimeOut, OnError);function OnComplete(args) { alert(args); } I want to change this so that web service returns the country name to a label inside an insert item template of a form view. Is there a way to pass in the label variable to the OnComplete function signature and still account for the variable args?, such as: Server Side Declaration of JavaScript ddl2.Attributes.Add("onChange", "JavaScript:OnComplete('" + lab5.ClientID + "', '" + "args" + "');"); Client Side JavaScript function OnComplete(lab5_id, args) { var lab5 = document.getElementById(lab5_id); lab5.innerHTML = args; }  

problem with passing parameter values to stored proceedure from asp.net c#

hi all, i am facing a problem while passing parameters to a stored proceedure. following is my sql query written for creating this stored procedure:   CREATE proc [dbo].[getstudent]( @wherecolumn nvarchar(2000), @wherevalue nvarchar(2000)) asbegin  declare @sql nvarchar(max) set @sql = 'select * from student2 where ' + @wherecolumn+'='+@wherevalueexec sp_Executesql @sql end   my table contains four columns: And the sql Query For the table is as follows:   CREATE TABLE [dbo].[student2]( [name] [varchar](50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL, [rollno] [int] NOT NULL, [class] [varchar](50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL, [section] [varchar](50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL, CONSTRAINT [PK_student2] PRIMARY KEY CLUSTERED ( [rollno] ASC)WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY]) ON [PRIMARY]   from page behind I am passing the values to parameter as follows:   SqlCommand command = new SqlCommand("getstudent", c.con); SqlDataAdapter datadapter = new SqlDataAdapter(c.cmd); command.CommandType = CommandType.StoredProcedure; command.Parameters.Add("@wherecolumn", SqlDbType.NVarChar).Value = "rollno"; command.Parameters.Add("@wherevalue", Sq

make a form parent to all other forms in visual studio c#

i have created 2 forms child.cs and parent.cs. I have added the menustrip in parent form. I want that menu strip to be displayed in the child form also. How can i do that? Or else I want to make the parent.cs as the common form to my child.cs. Please help me with the coding that i can understand

Passing values to same kind of controls

Hi all, I have two user controls attached to my Master page. (vb.net) These user controls display ads, and the pnly difference between them is the width of the ads they should diplay. Is there some way in which I can just register one user control, but use it twice, and then pass different integers to them? In other words, instead of having this: @ Register Src="Ads240.ascx" TagName="Ads240" TagPrefix="uc240" %> @ Register Src="Ads120.ascx" TagName="Ads120" TagPrefix="uc120" %> I'd only like to register one of them: @ Register Src="Ads.ascx" TagName="Ads" TagPrefix="ucAds" %>   Then from the .aspx page I'd like to have two of these:  <ucAds:Ads ID="Ads" runat="server" /> but kind of send different values to them (like "Usercontrolparameter=120") How do I do this? I have looking at properties and the like, but I don't know if they can let me reuse the user control file with different values. Thanks for any help! /Pettrer  

This constraint cannot be enabled as not all values have corresponding parent values

  While exporting site i got strange exception that cancel procedure: FatalError: This constraint cannot be enabled as not all values have corresponding parent values.    at System.Data.ConstraintCollection.AddForeignKeyConstraint(ForeignKeyConstraint constraint)    at System.Data.ConstraintCollection.Add(Constraint constraint, Boolean addUniqueWhenAddingForeign)    at System.Data.DataRelationCollection.DataSetRelationCollection.AddCore(DataRelation relation)    at System.Data.DataRelationCollection.Add(DataRelation relation)    at System.Data.DataRelationCollection.Add(String name, DataColumn[] parentColumns, DataColumn[] childColumn s)    at Microsoft.SharePoint.Deployment.ListItemObjectHelper.GetNextBatch()    at Microsoft.SharePoint.Deployment.ObjectHelper.RetrieveDataFromDatabase(ExportObject exportObject)    at Microsoft.SharePoint.Deployment.ListItemObjectHelper.RetrieveData(ExportObject exportObject)    at Microsoft.SharePoint.Deployment.ExportObjectManager.GetObjectData(ExportObject exportObject)    at Microsoft.SharePoint.Deployment.ExportObjectManager.MoveNext()    at Microsoft.SharePoint.Deployment.ExportObjectManager.ExportObjectEnumerator.MoveNext()    at Microsoft.SharePoint.Deployment.SPExport.SerializeObjects()    at Microsoft.S

Delphi Win32 MDI Parent with C# Windows Forms child form

I have created an assembly containing a form that i want created as a MDI child form in a Delphi Win32 application's MDI parent control. I can create the .NET form fine from my Delphi code. I can even use the Delphi window handle to let my .NET form be a child in the Win32 application by using the SetParent API. However minimizing the child form makes it disappear (instead of the regular minimize action for MDI children), and it also doesn't cause the MDI container to get scroll bars when you drag the child form under the edge of the MDI container. I have the feeling that the child form is not yet correctly aware that it is a MDI child. For instance, its MdiParent property is null. And i read somewhere that i might need to call some more Win32 API"s to hook everything up correctly. I can't, however, for the life of me not find which ones to call, and where to do it. Is there anyone here that is well versed in hooking up managed Windows Forms with native Win32 applications that can lend a helping hand?

Passing multi values to another multi value parameter

Hi, my requirement is as follows I have a parameter1 in which i populate values from database. the user can select multiple values from parameter1. after the parameter1 i have another parameter2 which is also mutliselection value. i,e depending on the selection of parameter i need to populate remaining values in Parameter2 (which is also a multi selection value). i have splited the values from parameter1 and passed the value of parameter1 (parameter1.value) to parameter2. but i am getting the following error An expression of non-boolean type specified in a context where condition is expected, near ',' incorrect syntax near the keyword 'ELSE' can anyone help me in this Thanks, Rajesh Peethala

SSRS problem with passing multiple parameter values via URL %2c

Hi, I have a problem with passing multiple parameter values from one report (A) to another report (B).   For example I built a URL string in report (A) with the parameters like &Parameter1=1&Parameter1=2. As soon as I click on that URL the URL parameters look like &Parameter1=1%2c2 and the parameters don’t getting populated on report (B).   If I change the parameter in the URL to &Parameter1=1&Parameter1=2 and execute the URL manual the parameter on report (B) getting populated properly.   Is there a way to disable the coding like %2c (comma) or is there another solution for it?   Thanks
ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend