Forms Data Controls :: DataGrid Doesn't Show Data After Postback?
Jan 21, 2010
I have a web application that takes information entered by the user and displays it in a few datagrids, that are located withing a multiview.
In order to enter a row to a datagrid the user enters some information and clicking on a button calls a function that adds the data to an arraylist, which is the source of the datagrid. In addition, every postback the data is binded to the datagrid.
It all works fine in the first time, but from the second row and on it enters only parts of the data and ignores the rest.
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Similar Messages:
Apr 6, 2010
I have a DataGrid bound to an ObjectDataSource, as you know once the DataSourceID on DataGrid is set, data binding happen automatically without any coding. But due to requests from end users, I need to prevent the data binding when the page is loaded the first time, i.e. data binding should only happen during PostBack. How do I do that?
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Mar 3, 2011
i have datagrid , data coming from database but data in database as formated , i want to show data wihotu format
below example:
<B> test </B> data base has this type data
but in grid i want to show test not with format,
i am getting same data from database.
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Feb 25, 2011
I am familiar with populating a gridview with data. I am able to bind the Data pulled from the database into the gridview
gridview.DataSource = myDataTable;
gridview.Databound.
If I write the following code, teh gridview will no longer show the data
gridview.DataSource = null;
gridview.Databound.
My question is , I want to make the same thing with a user control that contain a gridview. when I use the user control in an aspx page, I am able to populate it with data, but when I try to make this code, the Datasource does not show, instead, I see .DV. So I tried this code but then , I do not see DataSource property instead I see DV (DataView), when I put .DV = null, I get an error message that the object is not in existed. any idea how to clear the user control gridview from its data.
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Mar 1, 2011
using .NET 2.0 want to format datagrid , i am using DataGrid. i am saving data from textbox to database as formated text. now while retriving data from database i can see html format data i need to format : Example
<B> test my text </B> new test. want to show in dagagrid like test my text new test: and when i click on datagrid i want to see test my text new test this format not styling below code for data grid
<asp:GridView ID = "gvNotes" AllowPaging ="false" PageSize = "5" PagerSettings-Visible = "false" Width = "99%"
CssClass = "Grid" EmptyDataText = "No records found." runat = "server" DataKeyNames = "NOTES_ID"
AutoGenerateColumns = "false" OnRowCommand="gvNotes_RowCommand" OnRowDataBound="gvNotes_RowDataBound">
<EmptyDataRowStyle HorizontalAlign = "Center" Height = "30px" />
<Columns>
<asp:BoundField DataField = "NOTES" HeaderText = "Notes">
<ItemStyle CssClass = "GridRow" HorizontalAlign = "left" Width = "60%" />
<HeaderStyle CssClass = "GridHeader" HorizontalAlign = "left" />
</asp:BoundField>
<asp:BoundField DataField = "DATE" HeaderText = "Note Added Date">
<ItemStyle CssClass = "GridRowPadRight" HorizontalAlign = "Right" Width = "20%" />
<HeaderStyle CssClass = "GridHeader" HorizontalAlign = "Right" />
</asp:BoundField>
<asp:TemplateField HeaderText="Edit">
<ItemStyle HorizontalAlign="Center" Width="5%" CssClass="GridRow" />
<HeaderStyle CssClass="GridHeader" HorizontalAlign="Center" />
<ItemTemplate>
<asp:ImageButton ID="btnEdit" ImageUrl="~/Images/Edit.jpg" ImageAlign="Middle" runat="server"
CommandName="Edt" CommandArgument='<%#((GridViewRow) Container).RowIndex %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Delete">
<ItemStyle HorizontalAlign="Center" Width="5%" CssClass="GridRow" />
<HeaderStyle CssClass="GridHeader" HorizontalAlign="Center" />
<ItemTemplate>
<asp:ImageButton ID="btnDelete" ImageUrl="~/Images/Delete.jpg" runat="server" CommandName="Del"
CommandArgument='<%#((GridViewRow) Container).RowIndex %>' />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
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Feb 25, 2010
I am making checkbox in datagrid, no matter what I try, I cannot get the right result from checkbox. Even I check or not check the checkbox, the result is false. It is like somehow the result is always the default value of the checkbox.
Here is code:
private void OrderButton_Click(object sender, System.EventArgs e)
{
CheckBox x;
foreach ( DataGridItem dgItem in DataGrid1.Items)
{
x = (CheckBox)dgItem.FindControl("OrderCheckBox");
this.ALERT(x.Checked.ToString());
}
}
And here is my html:
[Code]....
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Mar 5, 2010
my goal is to do this:a user clicks on one row on the datagrid (.net 3.5). (the user can click anywhere of the row)then the form postbacks, and then other content based on the selected row on the page will be updated.
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Aug 19, 2010
Dropdownlist Show the all PatientName and save the PatientID in the database and in datagrid showing the PatientID my requirement is that the PatientName show in DataGrid.
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Oct 25, 2010
I want to show a image in panel below datagrid if I select particular row.I want to highlite that row in a diff color.
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Jan 1, 2011
This should be simple but I am baffled. I have a perfectly functioning DataGrid that I can click its "Select" link to select any one of its rows. When I do, the row highlights itself in red as expected. So far, so good.I also have an independent Label on the same page and I want to update its Text value to a cell value from the DataGrid when I select a specific row.OTH the DataGrid (named GridView1) and the Label (named Label2) are within an UpdatePanel.PROBLEM: When I select a row from the DataGrid, the Label is not updated with the cell's contents. It simply retains its original default Text value.Here is my code:
[Code]....
This code was from the MSDN site, but nothing seems to happen when I select rows within the GridView.
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Apr 13, 2010
I have a DataGrid that has a dropdown list in an ItemTemplate. Basically, users select a value from the dropdown for each row of the datagrid. When the page is posted back, the selected index of the dropdown list is always reset to 0, and the items are re-bound.
Does anyone know why this might happend? The dropdown items are hardcoded, so there is no external data binding that happens on post back.
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Feb 15, 2011
Is it possible, I have the following datagrid, want to show "filename" field info as a tooltip with first column Type in datagrid.
[Code]....
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Aug 20, 2010
in dropdownlist show the all PatientName and save the PatientID . how to show the PatientName in DataGrid.
PatientID, PatientName are Foreign Keys. In DataBase on Save the the PatientID my requiredment is PatientName show in DataGrid based on PatientID.
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Aug 19, 2010
how to show the dropdownlist datatextfield selected text in the DataGrid
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Feb 11, 2011
[Code]....
[Code]....
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Mar 2, 2010
I need to swap around the rows and I do that with
[Code]....
Obviously I am using the tableDnD() function to do that, but after I swapped them, I am saving the datagrid in a DataTable as it is (altered). However this doesn't happen. I need the changes to be posted back to the server. I tried to __doPostBack() after the onDrop function with no luck.
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Jan 10, 2010
i am using datadrid and i want to display it in vertically but it is continiously showing in horizontally style. i have made changes in view , property but still not working.
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Oct 13, 2010
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.
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Feb 18, 2011
i have a datagrid that i want to be able to select a row and be able to edit the details of the row selected. Im connected to an sql azure db.
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Oct 6, 2010
I'm trying to create a very simple Column chart. There are 10 items in X axis, but chart shows only 3 of their labels. For clarification, I'm trying to show Product sales count in chart. There are 10 products. In X axis, chart shows 10 products but, only 3 of them has a label for product name. It should be a setting for this, bu I couldn't find it.
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Aug 24, 2010
I do a gridview code that when displaying the information that come from the database is not showing any error at all, but is not displaying the right picture. The problem, I think, is that the (Eval("....") is not reading the values that are coming from the DataKeysNames. Due to this the right pictures are not displayed. But in another column, just for testing purposes I was able to display the values from DataKeysNames with the Eval. So I do not know what is going on and to make worse browser is not giving me any error. So, this is the line that is not processing, reading or executing well:
ImageUrl='<%# IIF( (Eval("TUDTIWasItemUpgraded")) = "Yes", string.Format("~/Images/ItemUpgradedTo.gif"), string.Format("~/Images/ItemNoUpgradedYet.gif") ) %>'
And this is the complete code for the GridView
<
asp:Panel
ID="DownlineUDTIGameClassifiedsViewPanel"
runat="server"
>
<asp:GridView
ID="DownlineUDTIGameClassifiedsViewGridView"
runat="server"
AutoGenerateColumns="False"
DataKeyNames="AutoNumber,TUDTIWasItemUpgraded"
DataSourceID="DownlineUDTIGameClassifiedsViewSqlDataSource"
CellPadding="4"
ForeColor="#333333"
AllowPaging="True"
PageSize="100"
OnDataBound="DownlineUDTIGameClassifiedsViewGridView_DataBound">
<FooterStyle
BackColor="#00693E"
Font-Bold="True"
ForeColor="White"
/>
<RowStyle
BackColor="#FFFBD6"
ForeColor="#333333"
/>
<PagerStyle
BackColor="White"
ForeColor="#333333"
HorizontalAlign="Center"
/>
<SelectedRowStyle
BackColor="#FFCC66"
Font-Bold="True"
ForeColor="Navy"
/>
<HeaderStyle
BackColor="#00693E"
Font-Bold="True"
ForeColor="White"
/>
<AlternatingRowStyle
BackColor="White"
/>
<PagerSettings
Mode="NextPreviousFirstLast"
Position="TopAndBottom"
/>
<Columns>
<asp:BoundField
ItemStyle-HorizontalAlign=Center
DataField="TUDTIGenerationNumber"
HeaderText="Generation"
SortExpression="TUDTIGenerationNumber"
/>
<asp:BoundField
DataField="TEnterDate"
HeaderText="Enter Date"
SortExpression="TEnterDate"
/>
<asp:BoundField
DataField="TItemTitle"
HeaderText="Listing Title"
SortExpression="TItemTitle"
/>
<custom:LongTextField
DataField="TListingComment"
Width="400px"
Height="75px"
HeaderText="Listing Comment"
HtmlEncode="false"
/>
<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:TemplateField
HeaderText="Item Upgraded To">
<ItemTemplate>
<asp:Image
ID="XItemUpgradedToPicture"
ImageUrl='<%# IIF( (Eval("TUDTIWasItemUpgraded")) = "Yes", string.Format("~/Images/ItemUpgradedTo.gif"),
string.Format("~/Images/ItemNoUpgradedYet.gif") ) %>'
runat="server"
Width="150px"/>
</ItemTemplate>
<ItemStyle
HorizontalAlign="Center"
/>
</asp:TemplateField>
<asp:TemplateField
HeaderText="Testing">
<ItemTemplate>
<asp:Label
ID="Label1"
runat="server"
Text='<%# Eval("TUDTIWasItemUpgraded") %>'
>
</asp:Label>
</ItemTemplate>
<ItemStyle
HorizontalAlign="Center"
/>
</asp:TemplateField>
<asp:TemplateField
HeaderText="Item Upgraded To">
<ItemTemplate>
<asp:Image
ID="ItemUpgradedToPicture"
ImageUrl="~/Images/ItemUpgradedTo.gif"
runat="server"
Width="150px"/>
</ItemTemplate>
<ItemStyle
HorizontalAlign="Center"
/>
</asp:TemplateField>
</Columns>
</asp:GridView>
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Nov 17, 2010
I�ve got a chart control (column type) and must show many elements at y axis, but when system generates the chart draw, it�s shows only odd elements: For example: My chart must show a colunm containing systems (x) and error incidences (y):
1. SIEMP
2. SISOUT
3. SIGTI
4. SISFIN
5. SISPL
6. SISTER
But it�s only shows:
1. SIEMP
2.
3. SIGTI
4.
5. SISPL
6.
I must set a parameter that forces "all" series to be showed.
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Feb 11, 2011
I try to use gridview with hyperlink button. once I extract field and put it into gridview there's a field which is TIME(eg. 10:20:00 PM) causes the link not to show out. Is there any way to encode the URL base on the TIME field. Here is my code.
[Code]....
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Oct 19, 2010
I have a gridview inside update pannel and i enabled sorting for the grid if i click to sort a column it does postback and then the grid doesn't show in anather way i have item template column inside of the grid and i am using a button to call a function ,if i click on this button it do the function but the grid doesn t show after the post back
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Mar 11, 2014
Below is House_info table in database
Id Behtop Service1 Service2 Service3 Name
1 1111 Ser1 Ser2 Ser3 Sara
2 2222 Ser4
I have lable=lblservice in my page that bind it from data base I want in lblservice show service1 and service2 and service3 column's data like below
ser1 , ser2 , ser3 so I wrote below code in SP
SUBSTRING (ISNULL([Service1]+','+' ',' ')+ISNULL([Service2]+','+' ',' ')+ISNULL([Service3]+','+' ',' ')+ISNULL(' ',' '),0,66)+'...'
as Service but here as you see in row with id=2 there isn't any data in service2 and service3 columns and just in service1 is data(ser4) so it show in lblservice data like below ser4, , , ...
but I want if in one of column doesn't be data it doesn't show (,) that come after data I mean I want if in 1 columns be data in show:
ser1,... NOT ==> ser1, , , ...
if in 2 columns be data shows
===>( ser1,ser2, ...) NOT ===>(ser1,ser2, , ...)
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