I Have Two Gridview in first one there is some data with checkbox. I Want when i check two or more checkboxes then show the both record who's checked to another gridview There is my Coding. Problem is it's show only one record at a time..
protected void CheckBox1_CheckedChanged(object sender, EventArgs e)
{
foreach(GridViewRow row in GridView1.Rows)
{
if (row.RowType == DataControlRowType.DataRow )
{
CheckBox chkSelect = (CheckBox)row.Cells[0].FindControl("CheckBox1");
if (chkSelect != null)
{
if (chkSelect.Checked)
{
string FoodItem = ((Label)row.FindControl("Label1")).Text.ToString();
string s = "select * from Item where Item_Name='" + FoodItem + "' ";
db.grid(s, GridView2);
}
}
}
}
By looking your code,
first think dont bind gridview immediately after checking checked property of each check box, it will override gridview2. first collect all check box values by concatinating say FoodItem = "(value1,value2,value3)".
call data base one time by modifying query like
string s = "select * from Item where Item_Name in " + FoodItem +";
db.grid(s, GridView2);
I think you have multiple selection so keep seperate button and write all codes to copy from one grid to another grid inside button click event.
Related
The asp:GridView displays the order lines. It contains only two BoundFields: ID (not visible) and html_text_info (visible). The gvOrderLines.DataSource is explicitly assigned by the DataTable that was obtained by calling the SQL stored procedure. Before that,the html_text_info is added to the DataTable, and it is filled by the formatted HTML text where other columns are the source for the information. See the following method (simplified):
private void LoadGridViewOrderLines()
{
// Get the data table with the order-line data for the order.
DataTable dt = DbUtil.GetAppTable(
"usp_order_lines #order_code=#order_code",
new Hashtable { { "order_code", OrderCode } },
commandTimeoutSeconds: 180);
// Add the field html_text_info, and format the info into it.
dt.Columns.Add("html_text_info", typeof(string));
StringBuilder sb = new StringBuilder();
foreach (DataRow row in dt.Rows)
{
sb.Clear();
// Get the values from the row.
string product_code = row.Field<string>("product_code");
string product_name = row.Field<string>("product_name");
double quantity = ... get the quantity and convert to double...;
string unit = row.Field<string>("unit");
double price = ... get the price and convert to double...;
// Format it as an HTML string.
sb.Append($"{product_code}<br />");
sb.Append($"<b>{product_name}</b><br />");
sb.Append($"Quantity: <b>{quantity:f2} {unit}</b><br />");
sb.Append($"Price: <b>{price:f3}</b><br />");
// Set the formatted value to the field.
row["html_text_info"] = sb.ToString();
}
gvOrderLines.DataSource = dt;
gvOrderLines.DataBind();
}
Now, I want to edit/update the order item. So, I need to access the row from the DataTable that is used as the DataSource. I already have the handler that gets correctly the ID into the property UpdateID (because it was named as DataKeyNames="ID" for the grid view; see below). How can I get the source values that form the composed field?
protected void gvOrderLines_RowEditing(object sender, System.Web.UI.WebControls.GridViewEditEventArgs e)
{
UpdateID = (int)gvOrderLines.DataKeys[e.NewEditIndex].Value;
// How to get the source values that form the composed field?
tbCode.Text = ???;
tbName.Text = ???;
tbQuantity.Text = ???;
tbPrice.Text = ???;
gvOrderLines.EditIndex = -1; // cancel
gvOrderLines.DataBind();
}
Is the DataRow for current e.NewEditIndex easily accessible? Or do I have to search on my own in the DataTable (that is the gvOrderLines.DataSource)?
The "data row" source ONLY persists during the data binding operations.
So for example, you have "looping" code after you pull the data to on the fly create those extra columns. I often do that, but I still in most cases would suggest you do that "one row" operation in the gv, and not against the table.
This suggestion is not a "must" do, but it can help. Since then you are free to have other buttons, filters or whatever and JUST toss/pass/send/throw to the gv the data source. (so, each time you pull/create/have/use/filter etc. the data source, you don't have to modify it with that extra column.
Thus this:
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
DataRowView gData = e.Row.DataItem as DataRowView; // the data source row!!!!
Label Info = (Label)e.Row.FindControl("lblInfo");
StringBuilder sb = new StringBuilder();
sb.Clear();
// Get the values from the row.
string product_code = gData["product_code"].ToString();
string product_name = gData["product_name"].ToString();
double quantity = ... get the quantity and convert to double...;
string unit = gData["unit"].ToString();
double price = ... get the price and convert to double...;
// Format it as an HTML string.
sb.Append($"{product_code}<br />");
sb.Append($"<b>{product_name}</b><br />");
sb.Append($"Quantity: <b>{quantity:f2} {unit}</b><br />");
sb.Append($"Price: <b>{price:f3}</b><br />");
// Set the formatted value to the field.
Info.Text = sb.ToString();
}
}
however, as I stated/noted, the so-called data source (dataitem) that seems to show all over the place in most GV events, is ONLY persisted during the binding process. Once binding is done, then that data item goes out of scope.
Next up, a button click to edit/get the one row.
I (now) in most cases do NOT bother with the gv event model WHEN most of the code and editing is custom code (code you the developer is writing and wanting control of what the heck is going to occur!!!).
So, just drop in a plane jane button into the grid row, and use a plane jane standard button click event.
Say, like this:
<asp:BoundField DataField="HotelName" HeaderText="Hotel Name" />
<asp:BoundField DataField="Description" HeaderText="Description" ItemStyle-Width="270" />
<asp:TemplateField HeaderText="Edit">
<ItemTemplate>
<asp:Button ID="cmdEdit" runat="server" Text="Edit"
CssClass="btn" OnClick="cmdEdit_Click" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
So, note how I do (did not) bother with using the built in gv events.
So, the button click event - a plane jane one looks like this:
protected void cmdEdit_Click(object sender, EventArgs e)
{
Button btn = sender as Button;
GridViewRow gRow = btn.NamingContainer as GridViewRow;
int PKID = (int)GridView1.DataKeys[gRow.RowIndex]["ID"];
Debug.Print("row index click = " + gRow.RowIndex);
Debug.Print("database PK id = " + PKID);
string strSQL = "SELECT * FROM tblHotelsA WHERE ID = " + PKID;
DataRow rstData = MyRst(strSQL).Rows[0];
.. etc. etc.
From that row click, we get/use/have the database PK id, and thus have to re-pull the data. Note how we NEVER exposed/used/have the database PK id in the gv markup - (for reasons of security). (and I see you ALSO using datakeys - good!!).
So, your edit button click (now a plane jane click event) becomes somthing like this:
protected void cmdEdit_Click(object sender, EventArgs e)
{
GridViewRow gRow = btn.NamingContainer as GridViewRow;
int PKID = (int)GridView1.DataKeys[gRow.RowIndex]["ID"];
// How to get the source values that form the composed field?
// answer: we re-pull the database row based on pk
int UpdateID = (int)gvOrderLines.DataKeys[e.NewEditIndex].Value;
string strSQL = "SELECT * FROM MyTable WHERE ID = " + UpdateID;
DataRow OneRow = MyRst(strSQL).Rows[0];
// any display value in gv - you use find control ,or cells[] collection
TextBox txtHotelName = gRow.FindControl("txtHotel") as TextBox;
Just remember that dataitem" is available ONLY during binding, and after the databinding to the gv is done, then it (the dataitem) goes out of scope.
If the value(s) you need are not in the gv "display", then you need to re-pull that one row for such values.
templated controls in gv - use find control
built in, use cells[] collection.
Now, to be fair, I don't much use the built in "edit" function, and I just drop in a simple edit button, and either hide the gv, show the hidden edit "div" I have. Or better yet, pop that div like this:
I have datagridview and textboxes on form. I load records from different tables when user clicks any one radiobutton. Data in grid is shown perfectly. I want to show values of the row in those textboxes.
One solution can be: binding data from dataset.
Second one can be: transfer values of each cell of row to respective textbox.
Please help me. And, please tell me which one is better or is there any other method which is even better than these two.
Thanks in advance.
Try using a BindingSource
BindingSource bindingSource = new BindingSource();
DataSet dataSet = new DataSet();
DataAdapter da1 = new DataAdapter("Select * from Customers", conn1);
DataAdapter da2 = new DataAdapter("Select * form Orders", conn1);
da1.Fill(dataSet,"Customers");
da2.Fill(dataSet,"Orders");
//Let we set Customers table as bindiningSource datasource
bindingSource.DataSource = dataSet.Tables["Customers"];
private void RadioButtonCustomers_CheckedChanged(object sender, EventArgs e)
{
if(radioButtonCustomers.Checked==true)
bindingSource.DataSource =dataSet.Tables["Customers"];
}
private void RadioButtonOrders_CheckedChanged(object sender, EventArgs e)
{
if(radioButtonOrders.Checked==true)
bindingSource.DataSource = dataSet.Tables["Orders"];
}
//First param of Binding is to which prop of TextBox to bind the value
//Second param is the data source
//Third param is the data member or the column name of the table as datasource, so
//we have to get that table from casting the bindingSource datasource prop and casting it
//to DataTable obj and after that to take the ColumnName prop of the desired column
textBox1.DataBindings.Add(new Binding("Text",bindingSource,((DataTable)bindingSource.DataSource).Columns[0].ColumnName));
textBox2.DataBindings.Add(new Binding("Text",bindingSource,((DataTable)bindingSource.DataSource).Columns[1].ColumnName));
etc...
Even if you change the datasource prop of bindingSource, textboxes will remain binded to rowvalue of first and second column
Hope this help.
Sir I done it making a simple WindowsForm with 2 radio buttons, 2 textboxes and datagridview
here is the sln file http://www13.zippyshare.com/v/98590888/file.html this must help u.
I tried many options to display value in textbox on the same form, but it was not working as datagridview could display records of two different tables.
Instead, I used the following event of datagridview:
private void dataGridView1_CellMouseClick(object sender, DataGridViewCellMouseEventArgs e)
{
this.dataGridView1.SelectionChanged += new System.EventHandler(this.DisplayValueinTextBox);
}
In DisplayValueinTextBox, I wrote following code based on numbers of columns displayed for each table:
private void DisplayValueinTextBox(object sender, EventArgs e)
{
try
{
textBox1.Text = dataGridView1.SelectedCells[0].Value.ToString();
textBox2.Text = dataGridView1.SelectedCells[1].Value.ToString();
textBox3.Text = dataGridView1.SelectedCells[2].Value.ToString();
if (tblGrid == "Employee") //name of table which has more columns in grid
{
textBox4.Text = dataGridView1.SelectedCells[3].Value.ToString();
textBox5.Text = dataGridView1.SelectedCells[4].Value.ToString();
textBox6.Text = dataGridView1.SelectedCells[5].Value.ToString();
}
this.dataGridView1.SelectionChanged -= new System.EventHandler(this.DisplayValueinTextBox); //removed it as I was getting error.
}
catch (Exception exdisp)
{
MessageBox.Show(exdisp.Message);
}
}
I also changed SelectionMode property of dataGridView to FullRowSelect. This will ensure that textbox1 is displaying value of SelectedCells[0] even if user clicks any cell.
I still hope there is even a better option, so I wait for comments on this.
I am having a GridView in my page , I want that when a particular row is clicked I want the cell value of that particular row.Currently I get that that value by using something like this ,
protected void SearchRecordGrid_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
e.Row.Attributes.Add("onclick", "location='ModifyCustomerByCategory.aspx?ApplicationNo=" + e.Row.Cells[0].Text + "'");
}
}
Currently I am passing that value as a parameter to the page , can any body tell how can I store that value in a variable or , atleast on click I assign it to a hidden field.
Thanks for any suggestions.
Try this link.
It runs through everything you will need, and on the gridview selectedindexchanged event you can reference the value with GridView.SelectedRow.Cells[0].Text or the control containing the value Gridview.SelectedRow.FindControl("[Control Name]")
In row data bound simply save that value and use it
int appno = CInt(e.Row.Cells[0].Text)
and if you want to use this value to next page
int appno = CInt(Request.Querystring("ApplicationNo"))
i have a dropDownList which gets its data from a database. Now after the data has bound, i programmatically add another listItem to the ddl, like so:
protected void ddlEffects_DataBound(object sender, EventArgs e)
{
DropDownList ddl = dwNewItem.FindControl("ddlEffects") as DropDownList;
ddl.Items.Add(new ListItem("","0")); //Adds an empty item so the user can select it and the item doesnt provide an effect
}
It all works, but the problem is that the newly added listItem appears at the bottom of the DDL. I want it to be the first item. I tried making the value 0, but its still at the bottom. Is there any way to put it at the top?
Thanks!
Check into the ddl.Items.Insert method that will allow you to insert items at a specific location.
Like this for example:
using (Entities db = new Entities())
{
ddlDocumentTypes.DataSource = (from q in db.zDocumentTypes where (q.Active == true) select q);
ddlDocumentTypes.DataValueField = "Code";
ddlDocumentTypes.DataTextField = "Description";
ddlDocumentTypes.DataBind();
ddlDocumentTypes.Items.Insert(0, "--Select--");
ddlDocumentTypes.Items[0].Value = "0";
}
Which using EF loads the DDL with items for the database, and then inserts at position zero a new item.
I am using a Grid View on my page.
I want to show the data of the selected row cell through response.write(), on the click event of the page button.
Note::
please set the CommandName of your
button to "selectCol"
Please set the CommandName for the
second button , you will use to
delete
to"deleteCol"
Set the command argument property for your button :
.aspx
CommandArgument='<%#((GridViewRow)Container).RowIndex%>'
CommandArgument='<%#((GridViewRow)Container).RowIndex%>'
for the two buttons.
.cs
protected void gv_RowCommand(object sender, GridViewCommandEventArgs e)
{
try
{
int index = Convert.ToInt32(e.CommandArgument);
if (e.CommandName == "selectCol")
{
Response.Write(gv.Rows[index].Cells[0].Text); //consider you use bound field and the column you want to show its value is the first column.
}
else if(e.CommandName == "deleteCol")
{
int id = int.Parse(gv.DataKeys[index].Value.ToString());//the primary key for your table.
Delete(id);//method which use (Delete From .... Where id = ....).
}
gv.DataBind();
}
catch (Exception ee)
{
string message = ee.Message;
}
}
Greeting Hims.
Easyest way to read value from gridview field is to write:
your_grid_name.SelectedRow.Cell(*number_of_index*).text
In my case that is:
Dim employer_name As String
employer_name=poslodavac_grid.SelectedRow.Cells(1).Text
Just remember that first cell index is zero and that doesn't count "asp:CommandField ShowSelectButton" tag as first one ...
Use GridView.SelectedRow property.
String cellText = this.gridView.SelectedRow.Cells[cellIndex].Text;
Refer to the following to learn about selecting a row in a GridView control.
Select Command in a GridView Control in ASP.Net
If you are using a LINK BUTTON in your grid view, you can use the following code in the ROWCOMMAND method. This code with retrieve all the values in the particular selected row.
// to get the value of the link use the command argument
FaultId = Convert.ToInt32(e.CommandArgument);
// to get the other column values
UserId = Convert.ToInt32(((GridViewRow(((LinkButton)e.CommandSource).NamingContainer)).Cells[1].Text);
Department = ((GridViewRow(((LinkButton)e.CommandSource).NamingContainer)).Cells[2].Text;
ProblemType = ((GridViewRow)(((LinkButton)e.CommandSource).NamingContainer)).Cells[3].Text;
You can get it in the RowCommand event of the gridview:
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "Select")
{
GridViewRow row = (GridViewRow)(((Button)e.CommandSource).NamingContainer);
Response.Write(row.Cells[0].Text);
Response.Write(row.Cells[1].Text);
................
}
}