Forms Data Controls :: How To Validate User Entry To Cell In GridView
Feb 28, 2011
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.
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Similar Messages:
Jan 28, 2010
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]....
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Apr 30, 2010
I have a grid view populated with some data included bit fields and I made an export to excel function For each row i need to check the cell with the bit value to change the cell color, but the cell is always empty, even if is the field is set to False or True. foreach (GridViewRow row in gv.Rows)
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Feb 11, 2010
I'm having a weird problem where the GridView cell that I'm programmatically updating turns grey, and throws a null error when attempting to save row. I have been searching all day and have not been able to find a solution. I'm guessing there is a problem with my code, so here it is:
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
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Sep 9, 2010
I have designed a page where user can write messages and send within a group but i want that if they enter any special character like <>?#@ etc a msg should be displayed irrespective of the crashing of the page.
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Mar 11, 2010
I have Gridview that is populated from a data table, there are two additional template columns which are not bound (one checkbox and one textbox). I intend for the users to fill data in the unbound textbox and check the checkbox as needed. (there really is a good reason why the data is constructed in this way)
here is the problem, when the user enteres data into the textbox and hits enter, the gridview appears to postback, which wipes out the checkbox and the data in the textbox.
I tried setting the enable view state of the grid to false, that was supposed to stop postback but no luck. I have the enable view state of the textbox and checkbox set to true and autopostback set to false. but still no luck
so I need to either stop the postback or intercept the enter key in the text box and cancel the action, but that is a bit beyond me at this point
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Jan 26, 2010
Is it possible to validate an entry using a validator if the inputted account number exists on the database?
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Apr 26, 2010
i need to do a pop up for every cell in gridview. The moment user click on the cell on gridview , a pop up pop up and showing every the data in the cell for user to do modification in textbox.
I am facing the problem in capturing the cell data and also bind the pop up to every cell.
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May 19, 2010
I have a gridview that has 5 columns, and when a particular row is selected, I need to get the value out of the 5th column.
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Aug 27, 2010
in my application a gridvie containing datas. if i select a row i want to display 2 cell values in to
2 textboxes.
how it is possible. i need the code in vb.net
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Jul 13, 2010
I have a gridView which connect with sqlDatasource. I want get value from cell. When i do that - this.GridMain.Rows[1].Cells[9].Text but always there are "". How can a i get value form cells.
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Feb 8, 2010
i'm having some problems calling a field from my gridview to use in a SQL query.
aspx:
<%@ Page Title="" Language="C#" MasterPageFile="~/MenuMasterPage.master" AutoEventWireup="true" CodeFile="Relatorios.aspx.cs" Inherits="qmetrics_Default" %>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
[Code]....
I think this happens cuz he is grabbing the two fields...how can i get only the field "nome"?
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Dec 28, 2010
<asp:GridView ID="gvcart" runat="server" AutoGenerateColumns="False"
BackColor="White" BorderColor="#DEDFDE" BorderWidth="1px"
CellPadding="4" Width="593px" BorderStyle="Solid" ForeColor="Black"> [code]....
orderid='" & gvcart.Rows(i).Cell(1).Text & "'" is not returning the value....orderid is a label in gridview.. how to get the value of the cell...
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Mar 24, 2010
How to set Height and ItemSource(Business Object as DataSource for Cell) for every Cell in DataGrid/ Grid? Shown below is part of code I am currently using with Grid Control. What I am currently doing is that I am using ListBoxItem, set Item Height and ItemSource at ListBoxItem Level, Add ListBoxitem to ListBox and then Add ListBox to Grid, It leaves me with just one row and multiple columns in the Grid, which is perhaps not the best way of doing it as it doesn't allow me to take benefits from UI Virtualization of Grid.
[code]....
I am open to use any control i.e. Grid/ DataGrid provided it allows me to set Cell Height and item source at Cell level. In my requirement, Cell height depends on the Item duration and size of image, which means the height of the cells may not be same across cells in any particular row.
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Jan 28, 2010
I am using this command to get the value of a particular cell in the GridView: Question: Do you know why I do not get a value in strValue ?
There is definitely value in the grid.
protected void grid_RowCommand(object sender, GridViewCommandEventArgs e)
{
//proceed only if the Details button is clicked...
if (e.CommandName.ToLower() == "details")
{
//Get the row index selected...
int index = Convert.ToInt32(e.CommandArgument);
GridViewRow row = grid.Rows[index];
string strValue = grid.Rows[index].Cells[1].Text;
}
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Mar 30, 2010
i am having trouble to set a new value to a specific GridView cell.
The value is passed from a javascript to the c# code behind where it should update a specific Gridview cell []:
I am not using editedtemplate.
code c# :
[code]....
In other hand I am using a JS code that set a GridView cell value.. The new value is set but as soon as i select another row on the GridView ..the Updated cell comes back to its original.
JS code1 :
setCellValue(selectedIndex,5);
JS code2 :
[code]....
What i need is a simple way to set a specific gridview cell with my passed JS variable.
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Sep 7, 2010
I have a gridview and I want to update a cell with a session variable username. In the Gridview1_RowEditing event I have this code :
GridView1.Rows(e.NewEditIndex).Cells(5).Text = Session("username")
It does not give me any errors and seems to work but the grid view cell do not take this session. When I'm clicking on the edit hyperlink this event is triggered.
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Feb 1, 2011
Objective : Get the value of a particular cell in a particular row - when I click on a template field button link. How do I "select" that row so I can use code like datagridview.rowselected
or datagridview.selectedrowindex etc...
Right now I am using code like that and it does not get any values of the gridview because it does not know what the selected row is (may be because I want this to be done on template field click)
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Dec 22, 2010
I've created a GridView as follows:
[Code]....
In my SQL DataSource, I also have a field called 'ClassLevel_Colour' which stores a colour value (for example: #9251ed)
What I'd like to do is colour the cell 'ClassLevel_Value' with the colour set in ClassLevel_Colour.
C# code I need to write - presumable for 'GridView_Classes_RowDataBound'?
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Feb 26, 2010
I have a gridview with a bound column,a template field with an editable textbox and a template field with a readonly textbox.
The bound field value is coming from database. I will enter a value to the editable textbox field. I want to set a value to the third cell based on the entered value in second cell . If the second cell is lost focus i want to set the value to third cell . If the solution is with a javascript function i will be very happy.
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Jan 21, 2011
How to Copy a Cell in GridView when pressing a button in GridViews's current row using code-behind ?
[Code]....
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Apr 28, 2010
]I have a problem with grid,Now my grid is like this...
Company Name
Issued Date
Quotation
Quotation2
Validity1
I want to be like this...
Company Name
Issued Date
Quotation1
Validity1
Here is my code... .aspx
[Code]....
.cs
[Code]....
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Sep 2, 2010
I have a gridview, Which I am editing. If user enter in TxtPrice then I need to caculate, Total Price. If use enter in txtqunatity then I need to update Total Quantity.
I have added a event GridCellChanged on OnTextChanged. I need to get cell id and value, How can we get?
protected
void GridCellChanged(object sender,
EventArgs e)
{
//Get Changed Cell Id??
}
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Jun 22, 2010
I am using this command to trim a cell value from a grid view.
row.Cells[i].Text.Trim().Length
The result return is always 6.
I have checked that the value of this is empty, when I display it on page using this code,
Response.Write(" '" + row.Cells[i].Text.Trim()+ "'<BR>");
I get ' ', it seems like there is a space in it.
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Sep 23, 2010
does anyone know if the gridview can tell you if a cell's contents have changed (during an edit) in order to determine if an update should be made against the database?
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