- I have a GridView , I want add a row FooterTemplate to add a new record in GridView . But I want to validate TextBoxs in FooterTemplate. My language I using is C# , Web Form .
Here is my code :
private bool Validate()
how to validate input data through textbox in footer template on button click in gridview
View 1 RepliesI have nested 2gridview. I want to access textbox in second gridview footertemplate. How can I do this.My code is
[Code]....
Code Behind
[Code]....
Iwrite this code but I get
Object reference not set to an instance of an object.
I have a nested repeater which displays a food menu - e.g.
Sub Heading
- Food 1
- Food 2
- Button 1
Another Heading
- Food 1
- Food 2
- Button 2
etc. etc.
What I have is a series of buttons inside the itemtemplate of the parent repeater (button 1 and button 2) which, when clicked, i need to somehow add a new blank textbox to below food 2 in whichever section it is clicked
I am having trouble doing this. See my code snippet below:
[Code]....
When I run this though, I receive an error of "object reference not set to an instance of object..."
Do I need to actually find a control within the footertemplate itself?
I am working with VWD Express and Visual Basic. take this into consideration if you are willing to answer my question. I do have the following code for a GridView.
<asp:GridView
ID="OpenCloseUDTIGameThreadGridView"
runat="server"
AllowPaging="True"
AutoGenerateColumns="False"
DataKeyNames="AutoNumber"
DataSourceID="OpenCloseUDTIGameThreadSqlDataSource"
CellPadding="4"
ForeColor="#333333"
PageSize="100" >
<Columns>
<asp:TemplateField HeaderText="Picture">
<ItemTemplate>
<asp:ImageButton
ID="ThumbNailImageButton"
runat="server"
Width="75px"
PostBackUrl='<%# string.Concat("~/Classifieds/DetailPage.aspx?AutoNumber=",Convert.ToString(Eval("AutoNumber")),"&FlagForm=NoSubmitted") %>'
ImageUrl='<%# IIF(System.IO.File.Exists(Server.MapPath(string.Format("~/UploadedImagesClassifieds/{0}{1}", Eval("AutoNumber"), "Pic1.jpg"))), string.Format("~/UploadedImagesClassifieds/{0}{1}", Eval("AutoNumber"), "Pic1.jpg"), "~/UploadedImagesClassifieds/NoPicture.gif")
%>' />
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" />
</asp:TemplateField>
<asp:CommandField ShowEditButton="True" />
<asp:BoundField DataField="TCategory" HeaderText="Category" ReadOnly="True" SortExpression="TCategory" />
<asp:BoundField DataField="TItemTitle" HeaderText="Item Title" SortExpression="TItemTitle" ReadOnly="True" />
<asp:BoundField DataField="TUDTIThreadActualStatus" HeaderText="Actual Status" SortExpression="TUDTIThreadActualStatus" />
</Columns>
</asp:GridView>
As you can see the second cell in each row is a EditButton, and the only cell that could be updated by users is the last one, DataField = TUDTIThreadActualStatus. I just want to know what could be the easiest way to validate the user entry when the row is in edit mode. Is there anyway to validate the textbox control with a validation control or is better to used code behind. Either way may you explain and drop some code if posible.
This is my aspx:-
[Code]....
This is my gridview structure I need two things from this1) For example in Label1 shows 50 then In Text1 I need to check the value is less than or equal to how to validate in client side in adp.net validation or javascript...? Like this same for second Item template also I need validation.. Like this I have some 10 itemteplate....2) On button click I need to save the value of Text1 and Text2 in database.. how would be my Insert statement in button click..
I have two dropdowns in the footertemplate of my gridview inside a usercontrol.
I also have a button "btnADD" inside the footer template. I am using the footertemplate to add a new row to the grid.
What do I do to validate on Button_click event for 'btnAdd' if a value is selected in the dropdown other than "select.." which I dynamically add in rowdatabound event?
I have this javascript function that I wanted to implement, but it gets called in the Page_load event rather than the button click event and gives an error.
The javascript function that I need to call is this: ( I created a method to return a string to use it in regards to RegisterClientScriptBlock, but do not know exactly how to use it)
rotected string BuildValidation()
{
StringBuilder sb = new StringBuilder();
sb.Append("<script type='text/javascript'>");
sb.Append("function ValidateWComp() {");
[Code]....
I have a gridview each line has 4 linkbuttons - Edit , Update , Cancel , Delete and a few columns with data...For example TeamName and TeamEmail, and a hidden column that contains a validator (for ease of validating controls that are found on the same row , same naming container)
When Edit button is Clicked , the specific line goes into editing mode , Texboxes are created for TeamName and for TeamEmail .
I create dinamically (code behind ) a new textbox that reads the value from the TeamEmail textbox , i give it a new id (let's say "Email") , add that email to the controltovalidate property of my validator , and call the validate() method of the validator.
Everything works fine when i modify the value in a worng format , the validator err message appears , when i modify the TeamEmail value to a good email format , the validator property isvalid becomes true , and the update is running , but my textbox is empty :( updating the TeamEmail value to null.
This is some bad code but hope you understand what i meant :
This is my html coed of my gridview
[Code]....
This is the code that manages the validation:
[Code]....
Way to enclose one Dropdownlist there for the Gridview?
View 1 Repliesif radio button  selected as process in a row then i need check text box is empty or not using jquery or javascript in gridview?
View 1 RepliesI want to show a column of database in footer of gridviewthe column name is Totalthis is my code but it shows 0
<asp:GridView ID="gvodinfo" runat="server" AutoGenerateColumns="False" onrowdatabound="gvodinfo_RowDataBound"
showfooter="true" >
[Code].....
I am placing a dropdown list in the footer of a DataGrid like this:
[Code]....
In my code behind file, in the myDDL_OnLoad event handler, I call to the database, populate a SqlDataReader, and set the DDL's datasource to that datareader. I define what data columns should be used for the DataValueField and DataTextField of the dropdownlist. Then I call the DropDownList's DataBind() method. Everything works without error. But, when the dropdownlist is displayed, it has blank lines in it.
By that, I mean if 8 records are loaded into the dropdownlist, it will expand to a size appropriate for 8 rows but, it will be empty. there is no text in it.
Has anyone seen this type of behavior before? This dropdownlist is in the footer of a dynamically loaded ajax update panel so, it is difficult to see the source code to see what values are in the html element rendered to represent the dropdown.
I am trying to add a validation of the textbox.text.length in a FormView and prevent the insertion of being made in case the text length is not compliant (less than four characters).
In the scenario when clicking the submit button an Alert should appear with xxxx warinig text. and the Insert command being prevented.
This is my FormView Insert Template:
[Code]....
I want to validate one textbox of my ascx control by using Javascript function. That textbox exists in the GridView row. I need to validate that textbox in such a way that when onblur() that textbox will show err message if there is null or more than one .(dot) entered.Â
View 1 RepliesI used below code instead of ckeditor
<script src="../tinymce/tinymce.min.js" type = "text/javascript"></script>
<script type = "text/javascript">
tinymce.init({
language : 'fa',
directionality : 'rtl',
selector: "textarea#elm1",
[code]...
here I used validation for textbox that if users don't enter text it show error..now here problem is that when I enter text for firsttime it show validation error  I should enter text again that it doesn't show error and insert data into database.what should I do that it doesn't show validation error when I enter text for first time it doesn't show error?
I have a Gridview on my aspx and i wonder if i can use validators like requiredfieldvalidator,comparevalidator or etc to validate a row is added or NOT?
View 4 Repliesi am using c# and want to do a validate to edit and do a new fild.
View 7 RepliesI need to validate and read edited values from a gridview. Here is the scenario,I have a gridview which has two columns Iteam name and Item Rate. Number of rows are dynamic depending on the user. I get the Text boxes filled with DB data.
I need to do this,
1) Validate if the user has entered numeric using front end validation
2) Read the edited values by user for each row and insert into the database in server side
Below is the gridview Source I have
[Code]....
I am unable to read gridview contents
How to set shortcut for asp.net button control.. as all of now that on clicking button it save record now
1) what i need is i need to set shortcut for this button if user press ctrl+S it fait button_click events.. how to do this...?
2) as well as i have one button in gridview footer itemtemplate button i need to shortcut for this button also.......
[Code]....
I had a gridview with checkbox to select records for generate report.
There are column "From Date", "To Date", "Applicant"...
How can I validate the selected row (checked checkbox) are on same date (From Date) ?
How to validate user entry to cell in GridView and replace the cell value on the other column?
Ex :
i have a gridview with 2 columns (A & B), on both columns i change it to TemplateField (TextBox).
Now on whatever row on column A, i want to validate the user entry when user leave the cell, how to achieve that ?
Based on user entry on column A, i will do some data lookup and get a value returned from the server, how to tell the gridview to replace the value on column B (on the same row) based on the value returned from the server.
I am using a gridview that contains an asp:fileupload so that when the user clicks 'edit' they can upload a pdf. I need to validate the size of the file, it needs to be less then a certain size. I tried to use a custom validator, but it never get called when the user updates. How can I validate the file size on edit in the gridview?
View 1 Repliesi'am trying to validate a DateTimePicker inside a gridview ( it's actually an ItemEditTemplate) i'am trying to use a compareValidator Because i have two columns startDate and endDate this sounds to be easy but the validator cannot find the item startDate because it's in another column is there a way to do it whithout having it done on the client side using javascript .
View 3 RepliesI have a label in a footertemplate of a gridviewcolumn. I want to put a calculated value (total of the rowvalues) in this label in javascript. I can access all the textboxes in my Itemtemplates, but I don't know how to find my label in my foortertemplates.
.aspx: column in gridview
<asp:TemplateField HeaderText="Prijs excl. BTW">
<ItemTemplate>
<asp:TextBox ID="txtBTWTarief" Width="60px" runat="server" Text='<%# Eval("exclBTW") %>' />
</ItemTemplate>
[Code]....
In this script I find my textboxes in the Itemtemplate, but I don't know how to find my labels in the footer template.
I want to validate on client side if a GridView has entries (count ==0). If it doesn't, I want to show on my Validation Summary.
View 2 Replies