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asp.net datagrid control : How to retrive value that is invisible in gridview
Server controls with Visible=false don't get rendered to client and don't
come back in postbacks. That's why you can't retrieve them. Leave Visible=true and hide the control with a css rule display:none. -- Eliyahu Goldin, Software Developer Microsoft MVP [ASP.NET] http://msmvps.com/blogs/egoldin http://usableasp.net [quoted text, click to view] "phyumon thant" <phyumon@gmail.com> wrote in message news:OQTYKu47HHA.1900@TK2MSFTNGP02.phx.gbl... > > > I can retrieve the value from gridview but i cann't if the value is > invisible in gridview. If i read the value that is hidden i got the > value null. I don't know why. if someone know, please let me know. > > my code is as follow > > protected void GridView3_RowUpdating(object sender, > GridViewUpdateEventArgs e) > { > int a = GridView3.EditIndex; > > Control ctl = GridView3.Rows[a].Controls[0]; > string value = > ((System.Web.UI.WebControls.TextBox)(ctl.Controls[1])).Text; > > Control ctl1 = GridView3.Rows[a].Controls[1]; > string value1 = > ((System.Web.UI.WebControls.TextBox)(ctl1.Controls[1])).Text; > > Control ctl2 = GridView3.Rows[a].Controls[3]; > string value2 = > ((System.Web.UI.WebControls.TextBox)(ctl2.Controls[1])).Text; > > > } > > i got value and value1 but didn't get value2 because i make it invisible > in gridview. i want to have this. please help me. > > Thanks a lot! > > > > > > *** Sent via Developersdex http://www.developersdex.com ***
I can retrieve the value from gridview but i cann't if the value is invisible in gridview. If i read the value that is hidden i got the value null. I don't know why. if someone know, please let me know. my code is as follow protected void GridView3_RowUpdating(object sender, GridViewUpdateEventArgs e) { int a = GridView3.EditIndex; Control ctl = GridView3.Rows[a].Controls[0]; string value = ((System.Web.UI.WebControls.TextBox)(ctl.Controls[1])).Text; Control ctl1 = GridView3.Rows[a].Controls[1]; string value1 = ((System.Web.UI.WebControls.TextBox)(ctl1.Controls[1])).Text; Control ctl2 = GridView3.Rows[a].Controls[3]; string value2 = ((System.Web.UI.WebControls.TextBox)(ctl2.Controls[1])).Text; } i got value and value1 but didn't get value2 because i make it invisible in gridview. i want to have this. please help me. Thanks a lot!
Rather than 'hiding' your values using formatting, use the zero-based
dataview datakeynames properties. Set the applicable columns in your datakeynames then retreave their values using the following, probably in the dataview's selectedindexchanged event: Me.gridview1.SelectedDataKey.Item(0).ToString Ross [quoted text, click to view] "phyumon thant" <phyumon@gmail.com> wrote in message news:OQTYKu47HHA.1900@TK2MSFTNGP02.phx.gbl... > > > I can retrieve the value from gridview but i cann't if the value is > invisible in gridview. If i read the value that is hidden i got the > value null. I don't know why. if someone know, please let me know. > > my code is as follow > > protected void GridView3_RowUpdating(object sender, > GridViewUpdateEventArgs e) > { > int a = GridView3.EditIndex; > > Control ctl = GridView3.Rows[a].Controls[0]; > string value = > ((System.Web.UI.WebControls.TextBox)(ctl.Controls[1])).Text; > > Control ctl1 = GridView3.Rows[a].Controls[1]; > string value1 = > ((System.Web.UI.WebControls.TextBox)(ctl1.Controls[1])).Text; > > Control ctl2 = GridView3.Rows[a].Controls[3]; > string value2 = > ((System.Web.UI.WebControls.TextBox)(ctl2.Controls[1])).Text; > > > } > > i got value and value1 but didn't get value2 because i make it invisible > in gridview. i want to have this. please help me. > > Thanks a lot! > > > > > > *** Sent via Developersdex http://www.developersdex.com ***
Fantastic, Eliyahu. Of all the solutions to this problem, I think this is
the best. "Eliyahu Goldin" <REMOVEALLCAPITALSeEgGoldDinN@mMvVpPsS.org> wrote in message news:OMpmZ647HHA.4436@TK2MSFTNGP03.phx.gbl... [quoted text, click to view] > Server controls with Visible=false don't get rendered to client and don't
> come back in postbacks. That's why you can't retrieve them. Leave > Visible=true and hide the control with a css rule display:none. > > -- > Eliyahu Goldin, > Software Developer > Microsoft MVP [ASP.NET] > http://msmvps.com/blogs/egoldin > http://usableasp.net > > > "phyumon thant" <phyumon@gmail.com> wrote in message > news:OQTYKu47HHA.1900@TK2MSFTNGP02.phx.gbl... >> >> >> I can retrieve the value from gridview but i cann't if the value is >> invisible in gridview. If i read the value that is hidden i got the >> value null. I don't know why. if someone know, please let me know. >> >> my code is as follow >> >> protected void GridView3_RowUpdating(object sender, >> GridViewUpdateEventArgs e) >> { >> int a = GridView3.EditIndex; >> >> Control ctl = GridView3.Rows[a].Controls[0]; >> string value = >> ((System.Web.UI.WebControls.TextBox)(ctl.Controls[1])).Text; >> >> Control ctl1 = GridView3.Rows[a].Controls[1]; >> string value1 = >> ((System.Web.UI.WebControls.TextBox)(ctl1.Controls[1])).Text; >> >> Control ctl2 = GridView3.Rows[a].Controls[3]; >> string value2 = >> ((System.Web.UI.WebControls.TextBox)(ctl2.Controls[1])).Text; >> >> >> } >> >> i got value and value1 but didn't get value2 because i make it invisible >> in gridview. i want to have this. please help me. >> >> Thanks a lot! >> >> >> >> >> >> *** Sent via Developersdex http://www.developersdex.com *** > >
On Sep 5, 3:30 am, "Eliyahu Goldin"
[quoted text, click to view] <REMOVEALLCAPITALSeEgGoldD...@mMvVpPsS.org> wrote: > Server controls with Visible=false don't get rendered to client and don't > come back in postbacks. That's why you can't retrieve them. Leave > Visible=true and hide the control with a css rule display:none. > > -- > Eliyahu Goldin, > Software Developer > Microsoft MVP [ASP.NET]http://msmvps.com/blogs/egoldinhttp://usableasp.net > > "phyumon thant" <phyu...@gmail.com> wrote in message > > news:OQTYKu47HHA.1900@TK2MSFTNGP02.phx.gbl... > > > > > > > I can retrieve the value from gridview but i cann't if the value is > > invisible in gridview. If i read the value that is hidden i got the > > value null. I don't know why. if someone know, please let me know. > > > my code is as follow > > > protected void GridView3_RowUpdating(object sender, > > GridViewUpdateEventArgs e) > > { > > int a = GridView3.EditIndex; > > > Control ctl = GridView3.Rows[a].Controls[0]; > > string value = > > ((System.Web.UI.WebControls.TextBox)(ctl.Controls[1])).Text; > > > Control ctl1 = GridView3.Rows[a].Controls[1]; > > string value1 = > > ((System.Web.UI.WebControls.TextBox)(ctl1.Controls[1])).Text; > > > Control ctl2 = GridView3.Rows[a].Controls[3]; > > string value2 = > > ((System.Web.UI.WebControls.TextBox)(ctl2.Controls[1])).Text; > > > } > > > i got value and value1 but didn't get value2 because i make it invisible > > in gridview. i want to have this. please help me. > > > Thanks a lot! > > > *** Sent via Developersdexhttp://www.developersdex.com***- Hide quoted text - > > - Show quoted text - I have tried five different approaches to this problem and this is the best solution out there. Thanks Eliyahu !
Eliyahn -- I have a SQL Sever table that includes Client Data -- I created
an AJAXenabled Web Site with a TextBoxSSN, a SQLDataSource, and an ASPxGridView (from DevExpress). In my Select Query, I've included a WHERE Clause (WHERE (SSN = @SSN) and the following Parameter: SSN = TextBoxSSN.Text SSN is a PrimaryKey in my SQL Server table. I have set Visible option for the SSN field to FALSE (to comply with HIPPA guidelines), but when I do this, I'm not able to UPDATE or DELETE records. How can I ADD, UPDATE, DELETE records in the SQL Server table without showing the SSN field? I read your post about setting Visible=True, and hidding the control with a css rule display none -- where do I create this css rule? Thanks in advance for your (or anyone else's) assistance on this. WebGuy Here's my SELECT Statement SELECT SSN, MaskedSSN, LAST_NAME, FIRST_NAME, MI, DOB, STREET_1, CITY_1, STATE_1, ZIP_1, ACTIVE_ADDR, STREET_2, CITY_2, STATE_2, ZIP_2, PHONE_1, PHONE_2, MOBILE_PHONE, EMAIL_1, EMAIL_2 FROM tblClient WHERE (SSN = @SSN) =============================================== "Eliyahu Goldin" <REMOVEALLCAPITALSeEgGoldDinN@mMvVpPsS.org> wrote in message news:OMpmZ647HHA.4436@TK2MSFTNGP03.phx.gbl... [quoted text, click to view] > Server controls with Visible=false don't get rendered to client and don't > come back in postbacks. That's why you can't retrieve them. Leave > Visible=true and hide the control with a css rule display:none. > > -- > Eliyahu Goldin, > Software Developer > Microsoft MVP [ASP.NET] > http://msmvps.com/blogs/egoldin > http://usableasp.net > > > "phyumon thant" <phyumon@gmail.com> wrote in message > news:OQTYKu47HHA.1900@TK2MSFTNGP02.phx.gbl... >> >> >> I can retrieve the value from gridview but i cann't if the value is >> invisible in gridview. If i read the value that is hidden i got the >> value null. I don't know why. if someone know, please let me know. >> >> my code is as follow >> >> protected void GridView3_RowUpdating(object sender, >> GridViewUpdateEventArgs e) >> { >> int a = GridView3.EditIndex; >> >> Control ctl = GridView3.Rows[a].Controls[0]; >> string value = >> ((System.Web.UI.WebControls.TextBox)(ctl.Controls[1])).Text; >> >> Control ctl1 = GridView3.Rows[a].Controls[1]; >> string value1 = >> ((System.Web.UI.WebControls.TextBox)(ctl1.Controls[1])).Text; >> >> Control ctl2 = GridView3.Rows[a].Controls[3]; >> string value2 = >> ((System.Web.UI.WebControls.TextBox)(ctl2.Controls[1])).Text; >> >> >> } >> >> i got value and value1 but didn't get value2 because i make it invisible >> in gridview. i want to have this. please help me. >> >> Thanks a lot! >> >> >> >> >> >> *** Sent via Developersdex http://www.developersdex.com *** > >
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