I have a web page with a Form a Button, a TextBox and a DataGridView in it. The DataGridView uses a SqlDataSource as its data source. SqlDataSource has one parameter which gets it's value from a
form parameter (TextBox1). When the page is opened for the first time I set the TextBox1 default value in code behind:
protected void Page_Load(object sender, EventArgs e)
I am new to asp.net and was trying to use datagridview in my webform. I was able to bind it to my database but I cannot make the datagridview's buttonfield respond. It seems the grid's SelectedIndexChanged event is not being fired or has issues with postback. Even a very simple statement is not being executed by the program e.g.
protected void grid_SelectedIndexChanged(object sender, EventArgs e)
{
detailsLabel.Text = "asdfasdfsafasddf";
}
It seems the SelectedIndexChanged is not being fired. I have checked my IE and scripting is enabled.
I am using VS 2008 and IE7. Can anyone share a solution on how to solve this issue?
I have a datagridview within which i want to use a dropdownlist.I am not sure how to do it.can anyone provide any links or hint how to do this?
View 7 RepliesTrying to update a .NET .20 datagridview in the following scenario. A page contains a formview. The formview contains a datagridview and some other fields not in the grid. The formview has its own ObjectDataSource and the datagridview has a separate ObjectDataSource. Each ObjectDataSource has an OnUpdating event. Clicking a Save button triggers the formview update event and the "non-grid" ObjectDataSource updates without a problem. In that same event, I also want to update the grid's ObjectDataSource. Because it's a grid, this OnUpdating event has to loop through each row, get the data for that row and set the UpdateParameter values. A foreach loop can get the values, but how do I trigger the update before looping to the next row?
Should I try calling a different kind of event for the DataGridView's ObjectDataSource? Or is there a way to get all the grid's new data at once as a dataset or datatable and do one bulk update? The datagridview does not have row-level edit/update buttons. It is meant to be an all-or-nothing kind of update.
I am trying to export an ASP.NET 3.5 DataGridView to Excel using the following code :
protected
void Button1_Click(object sender,
EventArgs e)
{
Response.Clear();
Response.Buffer = true ;
Response.AddHeader("content-disposition" ,
"attachment;filename=text.xls" );
Response.Charset = "" ;
Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" ;
StringWriter sw =
new StringWriter ();
HtmlTextWriter hw =
new HtmlTextWriter (sw);
GridView1.DataSource = RecordsDataSet;
GridView1.DataBind();
GridView1.AllowPaging = false ;
GridView1.DataBind();
GridView1.HeaderRow.Style.Add("background-color" ,
"#FFFFFF" );
for (int i = 0; i < GridView1.Rows.Count; i++)
{
GridViewRow row = GridView1.Rows[i];
//Change Color back to white
row.BackColor = System.Drawing.Color .White;
//Apply text style to each Row
row.Attributes.Add("class" ,
"textmode" );
}
GridView1.RenderControl(hw);
//style to format numbers to string...........
I am trying to conditionally format a datagridview row. My gridview has only one row of data. Here is my code
[Code]....
My page gets an error saying "Specified Argument is out of range of valid values". Any ideas on what could be wrong?
have this code for Thread. Put data in textBox.How input three variables in to dataGridView?
[Code]....
I have calculated a value (say, Total) from datagrid values using RowDataBound event.
I want to show the value by adding a new column into Grid.
I need to add 3 rows to a footer, i did a total but dont know how to add 2 more,
I have a variable credits that i would like to display on the next line and then net the 2 on the 3rd line.
I have looked at properties of the e.Row and was thinking if i could add a table?? Is there a to table method of datagridview? That way i could add the rows?
protected void gv_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.Footer)
{
double totald = Convert.ToDouble(dt.Compute("Sum(Bal)", string.Empty).ToString());
e.Row.Cells[0].Text = "Total";
e.Row.Cells[0].Attributes.Add("align", "left");
e.Row.Cells[2].Text = string.Format("{0:n0}", totald);
e.Row.Cells[2].Attributes.Add("align", "center");
e.Row.
}
}
i have images stored in database and i have to show it in a web page thru datagridview
View 1 Repliesi have table in my database that contain Fname and age for example.
i need to paint in green all age that under 50 and to paint in red all age up to 50
how to to it ?
i'am using asp.net C# on VS2008
I have a situation where I need to freeze first two colums in a datagrid view control on my asp.net app. In windows forms there is a proprty called Freeze which can be enabled / disabled. How can I freeze first two colums in a data grid view control on my ASP.NET page.
View 1 RepliesI added a checkbox column in the first column of datagridview.
Once data loaded to datagridview there are three columns will display: check (check box), ID, description
How to get value of ID when user checks the check box at that row?
I am using C# , ASP .NET 2.0 and i have to avoid the datagrid view items from being wrapped.
View 4 Repliesi am working on delete method... having problems in deleting the selected row in datagrid view..
protected void Imgbtn_delete_Click(object sender, ImageClickEventArgs e)
I have spent most of my time writing ASP.Net web pages, using VS 2005. I am now developing some client function for Windows, so I'm relatively less expert in VB.In my Windows program I have defined a DataGridView and linked this to a data table (within a tableadaptor). Now I want to populate it: on a web page's code-behind I would write Gridview.databind(). What is the equivalent with a DataGridView.
View 1 Replies how i add DropDownList in edit mode of DataGridView by DataSet through code not visible?
As we know that by default Every Column in Edit mode is a TextBox I want to replace this to DropDownList through code.
I'm new to asp.net. I have an exercise about datagridview.
Basically it's like this, I created a sql database in visual studio, added some tables and records. I added a gridview to my page and change the datasource to 1 of my tables. It displays every thing fine.
Now my exercise is, I need to add a new record to that table from a textbox control and button submit, and display in gridview after page reload.
DataTable dt = new DataTable();
I have loaded data into gridview from datatable which is in database.
I need to select any row from gridview to fetch the selectedrow values and need to display in corresponding textboxes.
but selectedindexchanged event is not firing, do I need to do any extra settings?
I want to fecth select index from the data loaded from database table.( not from manullay adding data to datarow and assigning datarow to datable and fanally to gridview- this is not the case)
onselectedindexchanged="GridView1_SelectedIndexChanged"
I am using a DataGridView and have a master table which contains values which different tables related to the master data, i.e. StatusID =1 in master table = TrailerStatus (1, 2, 3, 4 and their descriptions) are in a related table. I am able to retrieve the values from Table B 1 = Empty, 2 = Rejected, 3 = Onsite, etc. However, I don't know how to relate the master table StatusID = 1 to default my dropdown list from the relational table 1, 2, 3, 4.
I have been fighting with this for quite some time and just have not found a solid example of how to do this. I actually have two dropdownlists which will need to be correctly wired in order for my application to work.
This will also be an editable dataGridView but I will tackle that challenge once I get this first hair plucked from my butt.
There is some code-behind which doesn't work at all pertaining to a ;; gvSCACDetail_RowDataBound ;;
but I dont' think I can even get the code to compoile when this is not commented out.
Here are some of the details:
<td style="width: 700px; height: 20px">
<asp:GridView ID="gvSCACDetail" runat="server" AutoGenerateColumns="False" AutoGenerateEditButton="True" DataKeyNames="trailerid,locationid,scacid,statusid,capacityid" AutoGenerateDeleteButton="True" DataSourceID="SCACDetailView" Visible="False" Width="698px">
<PagerStyle CssClass="centerh" HorizontalAlign="Center" />
[Code]....
I created a website with a datagridview and I would like to add documents per line, actually a inserted there the next option
<asp:BoundField DataField="ID" HeaderText="ID" InsertVisible="False"
ReadOnly="True" SortExpression="ID" />
<asp:BoundField DataField="Week" HeaderText="Week" [code]....
it works really good, the only question is that how can I load the file with the button of "update", from the datagridview, how this code should be written?
I am editing a DataGridView and i have a textbox on the same page.I have setup textbox as rerquired field.when i edit my grid view it shows 2 buttons, cancel and update.when i press update button it shows textbox must has a value, altough textbox is not the part of the grid but available on the same page.I want when i press any button on the page, it should show field is required but when i press update button of the grid it should bypass the required field validation.
View 5 Repliesi am using vb.net 2008 i need to know about datagridview ......Is it to possible to add a data through vbcode in datagridview without using any datatable or dataset....
View 1 RepliesI have two SQL queries that are stored procedures that have 2 variables that my web form will be supplying through text boxes. The two queries will produce two different results. I have read a couple of different of the MSDN articles online, including this one:
[URL]
that say that the tables must be similar to be able to merge them into a single datagridview. I know that datagridviews only like one table at a time, but I was curious if anyone had found a way to merge two dissimilar tables to one datagridview or not.
I am refreshing my DataGridView by calling using the code below:
[Code]....
However I want to use templates in the DataGridView like this:
[Code]....
So I would NOT be calling FillDataGridView() from Timer1_Tick.My question is: what do I have to add inside Timer1_Tick so that it will refresh my DataGridView (the one with the templates)